Aliases of the Doctor: Difference between revisions

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During his travels in time and space, [[the Doctor]] has employed many different aliases; sometimes only briefly and sometimes on an ongoing basis. Owning to his refusal to tell all but a few people his real name, he has often had aliases assigned to him by others.
{{first pic|OneIanBarbaraAUC.jpg|[[Ian Chesterton]] and [[Barbara Wright]] meet "Dr Foreman". ([[TV]]: {{cs|An Unearthly Child (TV story)|namedep=An Unearthly Child (1)}})}}
{{doctor more}}
Throughout their travels in time and space, [[the Doctor]] took on and was called by a number of '''different [[alias]]es, titles and [[name]]s'''. Some were fleeting, while others, like '''John Smith''', were used by almost all of their [[incarnation]]s, with [[#Commonly used aliases|some variations]]. The Doctor told very few people their original name, instead asking others to simply call them '''the Doctor'''. By many accounts, the Doctor considered this title to be their real name. ([[TV]]: {{cs|The Name of the Doctor (TV story)}} et al.) It was their chosen [[identity]], and a [[The Doctor (title)|promise to the universe]]. ([[TV]]: {{cs|The Sound of Drums (TV story)}}, {{cs|The Beast Below (TV story)}}, {{cs|The Day of the Doctor (TV story)}})


==The mystery of the Doctor's real name==
In other accounts, however, the Doctor's "true name" was the one which was [[The Question|hidden]], a guarded secret the Doctor kept from almost everyone. ([[TV]]: {{cs|The Girl in the Fireplace (TV story)}}, {{cs|The Shakespeare Code (TV story)}}, {{cs|The Fires of Pompeii (TV story)}}, {{cs|The Time of the Doctor (TV story)}}) Most names the Doctor kept were a matter of convenience, and they were prone to take on whichever name would help them blend in best, or stand out more, depending on the situation. Some [[companion]]s felt this was not the Doctor's strongest suit, however. ([[AUDIO]]: {{cs|What Just Happened? (audio story)}} et al.)
===Ubiquity of the title===
[[Image:Drcallingcard.jpg|thumb|200px|[[Seventh Doctor|The Doctor]]'s calling card. [[DW]]:''[[Remembrance of the Daleks]]'']]
"The Doctor" was not, in fact, a name, but a title. His given name has never been revealed, and as such the very title "the Doctor" was an alias. It was implied that his given name was ceremoniously withdrawn and stricken by his Cousins, as punishment for a disgrace he visited upon [[House of Lungbarrow|his House]]. ([[NA]]: ''[[Lungbarrow]]'') When asked about [[Sixth Doctor|the Doctor]]'s name, his [[companion]] [[Peri Brown]] once said she'd been told she couldn't pronounce it. ([[BBCR]]: ''[[Slipback]]'') Even when he was twice put on trial by his own people, the Time Lords, he was only ever referred to during these events as "the Doctor" ([[DW]]: ''[[The War Games]]''), although [[The Valeyard]] acknowledged that it was an alias. ([[DW]]: ''[[Trial of a Time Lord]]'')


===Individuals who knew (or might know) his true name===
== The Doctor's real name ==
[[The Master]] and the Doctor had known each other since their [[Prydon Academy]] days, and by one account even earlier ([[BFA]]: ''[[Master (audio story)|Master]]''), but it has not been revealed whether or not he knew the Doctor's true name, although he's well aware that it's false. ([[DW]]: ''[[The Sound of Drums]]'') [[Drax]], however, who also knew the Doctor at the Academy, referred to him by his alternative name of "Thete", short for, or Theta Sigma. ([[DW]]: ''[[The Armageddon Factor]]'')
Most accounts treated the Doctor's true name as a complete mystery. [[Bill Potts]], his student, asserted that "nobody [knew] the Doctor's real name", although [[Missy]] claimed that she was an exception to this given that she "grew up with him". ([[TV]]: {{cs|World Enough and Time (TV story)}}) One account even implied that their given name was [[Elective Semantectomy|ceremoniously withdrawn and stricken]] by their Cousins as punishment for a disgrace the Doctor had brought upon [[House of Lungbarrow|their House]]. ([[PROSE]]: {{cs|Lungbarrow (novel)}}) By another account, it had "broke" into as many pieces as there were syllables it took to say, and he gifted a piece to some of those he met on his travels. ([[PROSE]]: {{cs|Return of the Living Dad (novel)}}) However, the Doctor's true name did appear in [[secret]] [[file]]s created by the [[High Court of the Time Lords|High Court]] of the [[Time Lords]], containing a transcript of [[the Doctor's trial (The War Games)|the Doctor's trial]], where it was [[Old High Gallifreyan|spelled]] as "[[∂³Σx²]]". ([[PROSE]]: {{cs|The Trial of Doctor Who (short story)}}) While wandering in the Doctor's TARDIS, Clara Oswald read [[The History of the Time War|a history of the Time War]] which apparently told her the Doctor's name, causing her to remark "So that's who." ([[TV]]: {{cs|Journey to the Centre of the TARDIS (TV story)}})
[[Madame de Pompadour]] recognized it as an alias when she was briefly connected to the Doctor's mind ([[DW]]: ''[[The Girl in the Fireplace]]''),.


:''Whether or not Madame de Pompadour learned his name this way remains undisclosed.''
Even when put on trial by the [[Time Lord]]s, they were only referred to as "the Doctor", ([[TV]]: {{cs|The War Games (TV story)}}) although [[the Valeyard]], a culmination of the Doctor's darker side who prosecuted the second trial, acknowledged that this was an alias. ([[TV]]: {{cs|The Mysterious Planet (TV story)}}) When the [[Fifth Doctor]] was officially inducted as [[Lord President]], he declared that it was "out of the question" for him to be introduced by his true name, stating that he would accept being introduced as "Lord President Doctor". ([[AUDIO]]: {{cs|Time in Office (audio story)}}) Even those who had known them in childhood addressed them only as "the Doctor", such as [[the Master]], ([[TV]]: {{cs|Death in Heaven (TV story)}}) and [[the Rani]]. ([[COMIC]]: {{cs|Weapons of Past Destruction (comic story)}})


[[River Song]], who [[Tenth Doctor|the Doctor]] would know in the future, revealed to him that she knew his true name by whispering it into his ear. He seemed particularly shocked at this, later saying to her "there is only one reason I would ever tell anyone my name, only one time I could."([[DW]]: ''[[Forest of the Dead]]'')
According to one account, during their [[First Doctor|first incarnation]], the Doctor adopted this name in dealing with [[human]] colonists on the [[planet]] [[Iwa]] at the same time that his [[Susan Foreman|granddaughter]] adopted the name "Susan". ([[PROSE]]: {{cs|Frayed (novel)}}) Other accounts implied that the Doctor's title had been chosen as a Gallifreyan custom, ([[TV]]: {{cs|The Sound of Drums (TV story)}}) and that he had been using it before he left Gallifrey. ([[TV]]: {{cs|The Name of the Doctor (TV story)}}, {{cs|World Enough and Time (TV story)}})


:''She whispered the Doctor's name for a duration of roughly two seconds. One could interpret this to mean that the Doctor has a short name, consisting of only a few syllables.''
The Doctor's real name has been said to be difficult to pronounce, for [[human]]s at least, ([[PROSE]]: {{cs|Doctor Who and the Auton Invasion (novelisation)}}, [[AUDIO]]: {{cs|Slipback (audio story)}}) and certainly for adults, ([[TV]]: {{cs|Twice Upon a Time (TV story)}}) possessing thirty eight syllables. ([[PROSE]]: {{cs|SLEEPY (novel)}}, {{cs|Return of the Living Dad (novel)}}) The [[First Doctor]] once told an interrogator he "wouldn't be able to pronounce the first syllable of [his name]." ([[PROSE]]: {{cs|Salvation (novel)}}) His [[Seventh Doctor|seventh incarnation]] likewise told one of his captors that he "doubt[ed] [they]'d be able to pronounce the name [he] was originally given." ([[PROSE]]: {{cs|Illegal Alien (novel)}}) When asked about the Doctor's name, [[Peri Brown]] once said that the Doctor had told her she would find it unpronounceable. ([[AUDIO]]: {{cs|Slipback (audio story)}})


At least one other person, [[Eighth Doctor|the Doctor]]'s [[companion]] [[Samantha Jones]], was also told his real name ([[EDA]]: ''[[Unnatural History]]'', [[EDA]]: ''[[Vanderdeken's Children]]'').
However, the [[First Minister of Chance]] once answered similarly when asked what his real name was, only to play it off as a joke and explain that "the Minister" ''was'' his real name, with this simply being how Time Lord names worked. ([[WC]]: {{cs|Death Comes to Time (webcast)}}) The [[Fifteenth Doctor]] similarly suggested that all Time Lord names were [[Vocational name|titles]], and that the original name he had discarded for "the Doctor" was already a "the" title; he prepared to tell it to [[Ruby Sunday]] as they stepped out of the [[TARDIS control room]], getting at least as far as "the". ([[TV]]: {{cs|Space Babies (TV story)}})


===Attempts to discover his true name===
Moments before his [[regeneration]], the [[Twelfth Doctor]] stated his belief that "[[child]]ren [could] hear [his name]", but only when "their hearts [were] in the right place, and the stars [were] too", adding: "but nobody else… nobody else… ''ever''", emphasising to [[Thirteenth Doctor|his uncreated next self]] that she "mustn't ever tell anyone [her] name". ([[TV]]: {{cs|Twice Upon a Time (TV story)}})
The [[Carrionite]] [[Lilith]], unable to discover his true name even with the "[[witchcraft]]" used by her kind, remarked, "There is no name. Why would a man hide his title in such despair?" ([[DW]]: ''[[The Shakespeare Code]]'') The psychically-gifted [[Evelina]], who attempted to foretell the Doctor's future, remarked that his "true name" was in fact "hidden". ([[DW]]: ''[[The Fires of Pompeii]]'')
===Significance of the title===
[[Sixth Doctor|The Doctor]], did, however, imply that he does actually have a doctorate ([[DW]]: ''[[The Armageddon Factor]]'' and ''[[The Trial of a Time Lord]]'': ''[[The Mysterious Planet]]'') On other occasions he has described himself as a "Doctor of many things", or indeed "everything" ([[DW]]: ''[[Utopia (TV story)|Utopia]]'').


==List of aliases==
The Doctor kept their true name hidden despite numerous "mind-probe" attempts and the effect of a [[Truth Field|truth field]]. ([[TV]]: {{cs|The Girl in the Fireplace (TV story)}}, {{cs|The Time of the Doctor (TV story)}}) The [[Carrionite]] [[Lilith (The Shakespeare Code)|Lilith]], unable to discover the [[Tenth Doctor]]'s true name even with the "[[witchcraft]]" used by her kind, remarked that "there [was] no name," and that the Doctor was hiding it in despair. ([[TV]]: {{cs|The Shakespeare Code (TV story)}}) The psychically-gifted [[Evelina (The Fires of Pompeii)|Evelina]], who attempted to foretell the Doctor's future, remarked that his "true name" was "hidden" from her. ([[TV]]: {{cs|The Fires of Pompeii (TV story)}})
===Major names and aliases===
====Theta Sigma====
'''Theta Sigma''' (informally or '''"Thete"''') was a nickname used by the Doctor during his years at the [[Time Lord Academy]] on the [[planet]] [[Gallifrey]]. ([[DW]]: ''[[The Armageddon Factor]]'', ''[[The Happiness Patrol]]'', [[DWM]]: ''[[Flashback]]'') The name might also have been a codename used by some aspects of [[Time Lord]] government to refer to the Doctor. (''[[The Adventures of K-9]]'' series) Note - the Greek letter Sigma slightly resembles the letter W turned on its side, and the Greek letter Theta slightly resembles the letter H inside the letter O. This might imply that his name really is WHO.


====The Doctor====
By one account, in his youth, the Doctor had outright removed his name from time, all but he and the Master forgetting his birth name. ([[AUDIO]]: {{cs|Blood of the Time Lords (audio story)}})
'''The Doctor''' chose his name himself, one also used by other [[Time Lord]]s. ([[DW]]:''[[The Sound of Drums]]'') On at least one occasion, a [[Human]] knew this name without the Doctor even saying it out loud. ([[NA]]: ''[[Cat's Cradle: Warhead]]'') His other aliases have usually had the alias "Doctor". He implied to Peri that his given name also began with such a title ([[DW]]: ''[[The Trial of a Time Lord]]'': ''[[The Mysterious Planet]]''). [[Drax]], a fellow Time Lord, indicated that the Doctor did indeed possess a doctorate (although in what is not indicated) ([[DW]]: ''[[The Armageddon Factor]]''). During his [[First Doctor|first incarnation]], he adopted this name for the benefit of [[Human]] colonists on the [[planet]] [[Iwa]] at the same that his grand-daughter [[Susan Foreman|Susan]] adopted the name "Susan". ([[TN]]: ''[[Frayed]]'')


====John Smith====
=== Significance ===
'''John Smith''' was the alias the Doctor generally used on [[Earth]] and around [[Human]]s when a name was often required. It was usually preceded by the title "Doctor", though not always - for example, when working undercover as a teacher at a school and as a patient in a hospital. ([[DW]]: ''[[School Reunion]]'', ''[[Smith and Jones]]'') He adopted it on a semi-regular basis during his [[Third Doctor|third incarnation]] while [[Exile on Earth|exiled on Earth]] when he served as scientific advisor to [[United Nations Intelligence Taskforce|UNIT]]. ([[DW]]: ''[[Spearhead from Space]]'') As "John Smith" is considered a very generic name in some [[Earth]] cultures, the Doctor's use of the alias is occasionally treated with skepticism by others ([[DW]]: ''[[Midnight]]'').
By one account, names held mystic importance in Time Lord society, meaning that all Time Lords kept their true names as closely-guarded secrets. In this sense, the Doctor's name was not any more or less significant than any other Time Lord's. ([[PROSE]]: {{cs|Doctor Who and the Auton Invasion (novelisation)}})


At one point in his life, the Doctor temporarily changed himself into a human who used the name John Smith. There are conflicting reports as to whether this occurred [[John Smith (novel)|in his seventh incarnation]] ([[NA]]: ''[[Human Nature (novel)|Human Nature]]''), or [[John Smith (television)|in his tenth]] ([[DW]]: ''[[Human Nature (TV story)|Human Nature]]''/''[[The Family of Blood]]'').
The [[Eleventh Doctor]] told [[Clara Oswald]] that his original name was not important since he specifically chose the title of "Doctor" to take its place, saying it was "like a [[promise]] [one made]." ([[TV]]: {{cs|The Name of the Doctor (TV story)}}) This [[vow|promise]] was; ''"Never cruel or cowardly. Never give up, never give in."'' ([[TV]]: {{cs|The Day of the Doctor (TV story)}}) Even Clara considered "the Doctor" to be his true name and the only one that mattered. ([[TV]]: {{cs|The Time of the Doctor (TV story)}}) Despite their hatred of the War Doctor's actions, ([[TV]]: {{cs|The Name of the Doctor (TV story)}}) both the tenth and eleventh incarnations admitted "[he] was the Doctor more than [any of them]." ([[TV]]: {{cs|The Day of the Doctor (TV story)}}) When Clara was forced to take on his role for him, the [[Twelfth Doctor]] told her that "goodness has nothing to do with [being a Doctor]". ([[TV]]: {{cs|Flatline (TV story)}})


=====Uses of this alias=====
The Doctor considered abandoning his name if he felt he had to do something highly immoral. ([[TV]]: {{cs|The Beast Below (TV story)}}, {{cs|Face the Raven (TV story)}}) The [[War Doctor]] rejected the name to fight in the Time War, ([[TV]]: {{cs|The Night of the Doctor (TV story)}}) but proudly called himself the Doctor once he was given the chance to end the conflict without killing the Time Lords. ([[TV]]: {{cs|The Day of the Doctor (TV story)}}) During his final day, the Twelfth Doctor stated being "the Doctor" was being kind, even if it meant pulling a self-sacrifice to bring others a small amount of extra time to live. ([[TV]]: {{cs|The Doctor Falls (TV story)}}) The [[Thirteenth Doctor]] said that a "bit of adrenaline, dash of outrage and a hint of panic" helped her to remember she was the Doctor. ([[TV]]: {{cs|The Woman Who Fell to Earth (TV story)}})
======[[Second Doctor]]======
*Given to him by [[Jamie McCrimmon|Jamie]] and used aboard [[Space Station W3]]. ([[DW]]: ''[[The Wheel in Space]]'')
======[[Third Doctor]]======
*During his exile on Earth with UNIT, during which time he served as its [[scientific advisor]] ([[DW]]: ''[[Spearhead from Space]]'', ''[[The Time Warrior]]'')
======[[Sixth Doctor]]======
*'''JSMITH''' was the Doctor's handle online. ([[PDA]]: ''[[Blue Box]]'')
======[[Seventh Doctor]]======
*A modification of this name, '''Johann Schmidt''', was used by the Doctor while impersonating a [[Nazi]] [[Reichsinspektor]]. ([[NA]]: ''[[Timewyrm: Exodus]]'')
* Given to him serendipitously by [[Chang Lee]] on his hospital admittance forms. ([[DW]]: ''[[Doctor Who: The TV Movie]]'')


====== [[Ninth Doctor]] ======
{{Simm|c}} knew of this and implied that the Doctor's title had been chosen because it meant "the man who makes people better", although he found the choice "sanctimonious" for someone who ended millions of lives and ruined many others. ([[TV]]: {{cs|The Sound of Drums (TV story)}}) [[River Song]] was aware of this contradiction in the Doctor's behaviour: she said that the Doctor was the first to have this title and that the rest of the universe later adopted it, usually to mean "healer" or "wise man". However, she added that, in some parts of the universe, such as in the [[Gamma Forests]], it eventually came to mean "mighty warrior". ([[TV]]: {{cs|A Good Man Goes to War (TV story)}})


According to [[Dorium Maldovar]], [[the Silence]] had a particular interest in the Doctor's name. He explained that if the Doctor lived long enough, "on the fields of [[Trenzalore]], at the fall of the Eleventh, [when] no creature could speak falsely or fail to answer", a question that must never be answered would be asked: "[[The Question|Doctor Who?]]". The Silence wanted to stop the Doctor from revealing his true name. ([[TV]]: {{cs|The Wedding of River Song (TV story)}})


The Doctor was at a later time forced to go to Trenzalore to rescue his friends from the [[Great Intelligence]], which sought to gain access to the Doctor's tomb. The tomb, which was a future version of his own dying TARDIS, would open only to the Doctor's real name. The Intelligence threatened to kill [[Clara Oswald]] and the [[Paternoster Gang]] if he did not speak his name and open the tomb; the situation was resolved when the data ghost of [[River Song]] was able to silently transmit his name to the TARDIS, thus opening the door for the Great Intelligence. ([[TV]]: {{cs|The Name of the Doctor (TV story)}})


*Shows Rose Tyler the psychic paper, she subsequently reads out "Dr. John Smith", suggesting that the Doctor intended to use this as an alias to investigate a pod that they had followed to Earth, 1941. However, he never actually uses this alias and manages to go the entire story without ever giving this (or any name). Rose did, however, tell Captain Jack that the Doctor's name was Mr. Spock. ([[DW]]: [[The Empty Child]]/[[The Doctor Dances]])
The Doctor's real name became important during the [[Siege of Trenzalore]], as it was the signal chosen by the Time Lords to come back to the universe, broadcasting the question "Doctor Who?" through a [[Time Field|crack in reality]], simultaneously broadcasting a [[Truth Field]] so that they could be sure that it was truly the Doctor responding to them. Despite this, when the Doctor was facing death, Clara told the Time Lords through the Crack that the only name of his that mattered was "the Doctor" and everything he stood for under that name, prompting them to give the Doctor a new regeneration cycle at the cost of closing the crack. ([[TV]]: {{cs|The Time of the Doctor (TV story)}})


======[[Tenth Doctor]]======
After meeting his [[Twelfth Doctor|twelfth incarnation]], the [[First Doctor]] was confronted by the mysterious [[Testimony Foundation]], who claimed that the Doctor was the "Doctor of War". Although the First Doctor initially feared this interpretation of his future, after witnessing the Twelfth Doctor's efforts to save Captain [[Archibald Hamish Lethbridge-Stewart]], he came to conclude that the "Doctor of War" was not a man who revelled in war, but a man who sought the moments of peace that existed amid open warfare, and who would always try to find another way to end war, and to find resolution, rather than resorting to bloodshed. ([[TV]]: {{cs|Twice Upon a Time (TV story)}})
*While under cover as a science teacher at [[Deffry Vale High School]]. ([[DW]]: ''[[School Reunion]]'')
*While posing as a patient at [[Royal Hope Hospital]]. ([[DW]]: ''[[Smith and Jones]]'')
*Impersonating a health and safety officer while investigating [[Adipose Industries]] ([[DW]]:''[[Partners in Crime]]'')
*Aboard the [[Crusader 50]] bus on the planet [[Midnight]], he eventually offered this as his name when the humans trapped aboard the bus with him demand he give it. Unlike other occurances where the name was accepted, this time the humans recognized it as false and rejected it. ([[DW]]: ''[[Midnight]]'')
*When "reintroducing" himself to [[Donna Noble]]. ([[DW]]: ''[[Journey's End]]'')
*When encountering [[Jackson Lake]], a mentally unwell man believing himself to be the Doctor. Once Lake's true identity had been established, the Doctor dropped the alias. ([[DW]]: ''[[The Next Doctor]]'')


====The Supremo====
=== Ubiquity of the title ===
For a year, [[Fifth Doctor|the Doctor]] used this alias as leader of [[the Alliance]] against the army of the evil [[renegade Time Lord]] [[Morbius]]. ([[PDA]]: ''[[Warmonger]]'')
The Doctor did possess at least one doctorate. ([[TV]]: {{cs|The Moonbase (TV story)}}, {{cs|The Armageddon Factor (TV story)}}, {{cs|The Mysterious Planet (TV story)}}) They sometimes described themselves as a "doctor of many things" ([[TV]]: {{cs|Four to Doomsday (TV story)}}) or of "everything", ([[TV]]: {{cs|Spearhead from Space (TV story)}}, {{cs|Utopia (TV story)}}) as well as "a scientist, an engineer, builder of things". ([[TV]]: {{cs|The Aztecs (TV story)}}) However, their knowledge was limited to anything prior to the [[Rassilon Era]]. ([[TV]]: {{cs|Utopia (TV story)}}) The [[Eleventh Doctor]] claimed that one of his doctorates was in [[cheesemaking]], ([[TV]]: {{cs|The God Complex (TV story)}}) but only the "stinky, blue kind". ([[PROSE]]: {{cs|Shroud of Sorrow (novel)}})


:''For an unrelated use of the term, see [[the Supremo]].''
On several occasions, the Doctor claimed they were not a medical doctor. ([[TV]]: {{cs|An Unearthly Child (TV story)|namedep=The Forest of Fear (3)}}, {{cs|Marco Polo (TV story)|namedep=Mighty Kublai Khan (6)}}) Though by their [[second incarnation]], he had studied medicine in the [[19th century]], ([[TV]]: {{cs|The Moonbase (TV story)}}) although Clara recalled the Doctor telling her that he graduated in the wrong century. ([[TV]]: {{cs|Death in Heaven (TV story)}}) The Eleventh Doctor described himself as a medical doctor. ([[TV]]: {{cs|The God Complex (TV story)}}) The [[Seventh Doctor|seventh]], [[Eleventh Doctor|eleventh]] and [[twelfth incarnation]]s displayed some medical knowledge, being able to help with minor injuries ([[TV]]: {{cs|Remembrance of the Daleks (TV story)}}, {{cs|The Vampires of Venice (TV story)}}) and tell if a person was vitamin deficient. ([[TV]]: {{cs|Thin Ice (TV story)}}) The [[Ninth Doctor]] could also diagnose patients in a hospital ward, quickly deducing they all shared the injuries of a scar on the back of their hands, collapsed chest cavities, crushed rib cages and gas masks fused into the flesh on their faces, ([[TV]]: {{cs|The Empty Child (TV story)}}) and displayed extensive knowledge on [[nanogene]]s, such as their ability to repair organic matter and restore life as a mere "quirk of matter". ([[TV]]: {{cs|The Doctor Dances (TV story)}}) The [[Tenth Doctor]] in particular proved a proficient medic, performing life-saving surgery on [[Laszlo]], sustaining him as a Human-Pig hybrid, able to live as long as a human again. ([[TV]]: {{cs|Evolution of the Daleks (TV story)}})


====[[Merlin]] and [[Muldwych]]====
When asked by [[Mabli]] if her doctorate was in medicine, the [[Thirteenth Doctor]] described herself as having a doctorate in "medicine, science, engineering, candyfloss, Lego, philosophy, music, problems, people, [and] hope." ([[TV]]: {{cs|The Tsuranga Conundrum (TV story)}})
This was, [[Seventh Doctor|the Doctor]] believed, an alias used by a future and/or alternative Doctor residing in a [[magic]]-using [[Arthur's World|parallel Earth]]. ([[DW]]: ''[[Battlefield]]'') This was apparently, a future incarnation of the Doctor who, at times, also used the name '''[[Muldwych]]'''. ([[NA]]: ''[[Happy Endings]]'')  


:''Another account, however, says that another [[renegade Time Lord]] used the alias of [[Merlin]]. ([[ST]]: ''[[One Fateful Knight]]'') See [[Merlin]] and [[Muldwych]].''
=== Individuals with knowledge of the Doctor's name ===
[[Susan Foreman]] knew the Doctor's real name, and wrote it on the wrappings of a [[hypercube]] she sent to him after she had settled down on Earth. ([[PROSE]]: {{cs|Ghost of Christmas Past (short story)}})


===Minor aliases===
[[Ace]] knew his true name's signature, written using three runes but able to be condensed into one. ([[PROSE]]: {{cs|Timewyrm: Revelation (novel)}}) The [[Seventh Doctor]], half-unconscious, once told two [[Caxtarid]]s his name, which they remarked as being "hard getting [...] on the front of an envelope." ([[PROSE]]: {{cs|Return of the Living Dad (novel)}})
====[[First Doctor]]====


=====Maximus Pettulian=====
The [[Sixth Doctor]] told his dance instructor, [[Becky (Teach Yourself Ballroom Dancing)|Becky]], his name. ([[PROSE]]: {{cs|Teach Yourself Ballroom Dancing (short story)}})
While visiting the Roman Empire prior to the burning of Rome, the Doctor briefly impersonates a murdered lyre player named [[Maximus Pettulian]] until his true identity is uncovered. ([[DW]]: ''[[The Romans]]'')


=====Zeus=====
The [[Eighth Doctor]] used his real name when he forged passes for himself and his [[companion]], [[Sam Jones]], on board the ''Cirrandaria'' in 3123. He used this name when speaking to a guard, Sam finding it quite alien and virtually unpronounceable. ([[PROSE]]: {{cs|Vanderdeken's Children (novel)}})
When the [[Greek]] warrior [[Achilles]] mistook the Doctor for Zeus posing as an old man, he went along with it, until the already unconvinced [[Agamemnon]], spoiled the Doctor's ruse. ([[DW]]: ''[[The Myth Makers]]'')
=====Doctor Caligari=====
Name used by [[First Doctor|the Doctor]] when he arrived in [[Tombstone]], impersonating a magician. ([[DW]]: ''[[The Gunfighters]]'')


====[[Second Doctor]]====
When the [[Tenth Doctor]] first encountered her, [[River Song]] claimed to have known him at some point in his future, ([[TV]]: {{cs|Silence in the Library (TV story)}}) and, to prove her "credentials", she whispered his name in his ear, and apologised for having to do so. The Doctor was shocked at this, as "there [was] only one reason [he] would ever tell anyone [his] name, [and] only one time [he] could." ([[TV]]: {{cs|Forest of the Dead (TV story)}}) River indicated to [[Clara Oswald]] that she "made" the Doctor tell her his name and that "it took a lot of effort". ([[TV]]: {{cs|The Name of the Doctor (TV story)}})
=====Doctor von Wer=====
'''Doctor von Wer''' was an alias briefly adopted by [[Second Doctor|the Doctor]] during his visit to [[Scotland]] in [[1745]]. It is simply ''Doctor [of] Who'' translated into [[German]]. He also signed a note ''Doctor W'' around this time. ([[DW]]: ''[[The Highlanders]]'')
====[[Third Doctor]]====
=====Quiquaequod=====
[[Olive Hawthorne|Miss Hawthorne]] referred to the Doctor as "the great wizard '''Quiquaequod'''" while attempting to bluff the villagers of [[Devil's End]] into releasing him. ([[DW]]: ''[[The Dæmons]]'')
:''"Qui", "quae" and "quod" were the masculine, feminine and neutral forms of "who" in Latin.''
====[[Sixth Doctor]]====
=====Doktor of Tardis=====
Pseudonym used by [[Sixth Doctor|the Doctor]] to move discreetly around an alternate version of the city of Rome. ([[MA]]: ''[[State of Change]]'')
====[[Seventh Doctor]]====
=====?=====
When [[Seventh Doctor|the Doctor]] is asked to sign a document in during a visit to [[London]] in [[1963]], he does so by signing a question mark. ([[DW]]: ''[[Remembrance of the Daleks]]'') [[Fourth Doctor|The Doctor]] also appears to sign a document in a similar fashion prior to the [[Sontaran]] invasion of [[Gallifrey]]. ([[DW]]: ''[[The Invasion of Time]]'')
====[[Tenth Doctor]]====
=====Doctor James McCrimmon=====
[[Tenth Doctor|The Doctor]] took the name '''James McCrimmon''' while visiting [[Scotland]] in [[1879]]; this was the name of [[Jamie McCrimmon|one of his old companions]]. ([[DW]]: ''[[Tooth and Claw]]'')
=====Doctor Vile=====
The Doctor briefly masqueraded as the [[space pirate]] '''Doctor Vile''' in order to stop a war. ([[DW]]: ''[[The Infinite Quest]]'')


'''Spartacus'''
Near the end of his life, despite believing there was no one left in the universe who knew it, the Tenth Doctor encountered members of an unidentified pan-dimensional race that knew his real name. ([[AUDIO]]: {{cs|The Last Voyage (audio story)}})


While in Pompeii The Doctor is asked his name, and after a few seconds replies with "I am...Spartacus."
While separated from the [[Eleventh Doctor]], [[Clara Oswald]] read his name in ''[[The History of the Time War]]''. Though [[Alternate timeline (Journey to the Centre of the TARDIS)|that timeline]] was aborted, leaving her with no memory of it, ([[TV]]: {{cs|Journey to the Centre of the TARDIS (TV story)}}) she later began to [[history-proofing|recall certain moments]] of the timeline, ([[TV]]: {{cs|The Name of the Doctor (TV story)}}) and claimed to know the Doctor's name when bluffing to the [[Cybermen]] about being the Doctor. ([[TV]]: {{cs|Death in Heaven (TV story)}}) Additionally, she was able to hear and see River when she said the Doctor's name to open his tomb, but the circumstances of River's saying of the Doctor's name were unknown. ([[TV]]: {{cs|The Name of the Doctor (TV story)}})
=====Doctor McCoy=====
After a discussion with [[Donna Noble]], in which she compared the [[sonic screwdriver]] with ''[[Star Trek]]'''s [[Wikipedia:tricorder|tricorder]], the Doctor adopted the alias '''Dr. McCoy''' (after Dr. Leonard "Bones" McCoy, a ''Star Trek'' character) when dealing with a group of soldiers. (Donna called herself [[Captain Kirk]], after James T. Kirk, the lead character of the ''Star Trek'' series.) The ruse fell apart when Donna was unable to maintain the pretence of being a captain. ([[NSA]]: ''[[Pest Control]]'')


'''The Time Lord Victorious. '''
[[Missy]] claimed to know the Doctor's real name from their time together on Gallifrey. She said it was "Doctor Who", and the Doctor had chosen it to be mysterious, but dropped the "Who" when he realised it was "too on-the-nose". The [[Twelfth Doctor]] said she was just teasing [[Bill Potts]], but he refused to answer if it was truly his name. ([[TV]]: {{cs|World Enough and Time (TV story)}})


After realising that he wasn't in fact just a survivor of the Time War but was in fact the winner and that subsequently all of time was his to command, the Doctor refered to himself as The Time Lord Victorious. This Doctor was quite dark and remicient of the Master.
== "Doctor Who" ==
[[File:I Am Who.jpg|thumb|The [[First Doctor]], when asked who he is, responds that he is Who. ([[COMIC]]: {{cs|Challenge of the Piper (comic story)}})]]
The name "Doctor Who" was used by or applied to the Doctor on a large number of occasions, with accounts varying on whether this seemed to be the time-traveller's actual name — or at any rate a name they accepted and used for themselves — or simply a placeholder applied to them by others for lack of knowledge of his real names.


==Names given to the Doctor by others==
In a [[Dr. Who's reality|version of history "B"]] relative to the [[First Doctor]]'s [[The Doctor's reality (An Unearthly Child)|version of history "A"]], ([[PROSE]]: {{cs|Dalek Survival Guide (novel)}}) an [[Earthling]] [[scientist]] who invented ''[[TARDIS (Dr. Who and the Daleks)|TARDIS]]'' and fought the [[Dalek]]s identified himself as [[Dr. Who (Dr. Who and the Daleks)|Dr. Who]]. ([[TV]]: {{cs|Dr. Who and the Daleks (theatrical film)}}, {{cs|Daleks' Invasion Earth 2150 A.D. (theatrical film)}})
===Major===
====The Evil One====
The [[Sevateem]] tribe referred to [[Fourth Doctor|the Doctor]] as '''The Evil One''', due to the fact that [[Xoanon|the supercomputer they worshipped]] had a split personality, one of which was based on [[Fourth Doctor|the Doctor]]. ([[DW]]: ''[[The Face of Evil]]'')


====Ka Faraq Gatri====
"Dr. Who" was the name by which the First and [[Second Doctor]]s were known during their [[John and Gillian's world|travels]] with their [[grandchildren]], ([[COMIC]]: {{cs|The Klepton Parasites (comic story)}}, {{cs|The Extortioner (comic story)}}) [[John Who|John]] and [[Gillian Who]]. ([[COMIC]]: {{cs|The Incomplete Death's Head (comic story)}}) Accounts differed as to whether these adventures took place in [[the Doctor's universe|reality]] ([[PROSE]]: {{cs|Beware the Trods! (short story)}}, {{cs|The Man Who (Nearly) Killed Christmas (short story)}}) and John and Gillian were truly the Doctor's grandchildren ([[COMIC]]: {{cs|The Klepton Parasites (comic story)}}, et al.) or simulacra, ([[POEM]]: {{cs|The Five O'Clock Shadow (poem)}}) or if they took place in the [[Land of Fiction]] ([[PROSE]]: {{cs|Conundrum (novel)}}) or the Doctor's dreams. ([[COMIC]]: {{cs|The Land of Happy Endings (comic story)}})
The [[Dalek]]s referred to the Doctor as the '''Ka Faraq Gatri''', which may mean '''Bringer of Darkness''' and/or '''Destroyer of Worlds'''. By implication, the name Destroyer of Worlds refers to the Doctor's destruction of the Dalek home [[planet]] [[Skaro]] in his [[Seventh Doctor|seventh incarnation]], an act for which he would consequently feel some remorse. ([[DW]]:''[[Remembrance of the Daleks]]'', [[NA]]: ''[[Timewyrm: Revelation]])'' However, as early as his [[Second Doctor|second incarnation]], the Doctor knew that the Daleks had given him this name, and the Daleks used it prior to the destruction of Skaro. ([[DWM]]: ''[[Bringer of Darkness]]'', [[DWN]]: ''[[Remembrance of the Daleks (novelisation)]]''). The name was again used by [[Davros]] upon his near destruction. ([[DW]]: ''[[Journey's End]]'')


[[Dalek Caan]] also referred to him as "'''the Dark Lord'''" or "'''the Threefold Man'''" ([[DW]]: ''[[The Stolen Earth]]''/''[[Journey's End]]'').
The version of the Doctor in the Land of Fiction was known as [[Dr. Who (Land of Fiction)|Dr. Who]]. ([[PROSE]]: {{cs|Prelude Conundrum (short story)}}, {{cs|Conundrum (novel)}}, {{cs|Head Games (novel)}}) While visiting the Land of Fiction, the [[Seventh Doctor]] encountered a "John" and "Gillian" who claimed he was their grandfather in whose company they had fought the [[Klepton]]s and the [[Trod]]s. They tried to make him remember that his name was Dr. Who, to which he flatly replied with denial. When they pressed further and asked if he remembered them, he said that he didn't. ([[PROSE]]: ''[[Conundrum (novel)|Conundrum]]'')


====Time's Champion====
[[Doctor Who (in-universe)|On television]] in the [[1960s]], fans referred to the Doctor as [[Dr. Who (fictional character)|Dr. Who]]. ([[COMIC]]: {{cs|TV Terrors (TVC 709 comic story)}})
'''Time's Champion''' was a title given to the Doctor to symbolise his service to [[Time (Eternal)|Time]] during his [[Seventh Doctor|seventh incarnation]].
====The Oncoming Storm====
The [[Dalek]]s also referred to the Doctor as the '''Oncoming Storm''' in the myths of [[Skaro|their homeworld]], as noted by his [[Ninth Doctor|ninth incarnation]], indicating that the Daleks feared him. ([[DW]]: ''[[The Parting of the Ways]]'') This was also the name given to him by the [[Draconian]]s, who were generally his allies, to indicate the traumatic events which so often accompanied his arrival. ([[NA]]: ''[[Love and War]]'')
====The Sandman====
The Sixth Doctor's actions in the past of the [[Galyari]] led to his entering their race memory as a legendary monster called the '''Sandman'''. ([[BFA]]: ''[[The Sandman]]'')
====Rides In Night====
The Doctor was known to the [[Pawnee Nation]] by the name '''Rides In Night'''. He was also known as '''The Brother to Coyote'''. ([[NSA]]: ''[[Peacemaker]]'')


===Minor===
The [[Third Doctor]] once stated that his real name was not "Doctor Who", but that others often called him that for lack of him divulging his actual true name. ([[TV]]: {{cs|The Shrink (TV story)}})
====Doctor Who====
The name "Doctor Who" has been applied to the Doctor, intentionally or unintentionally, on many occasions. The computer [[WOTAN]] referred to the Doctor as '''Doctor Who''', for reasons which have never been explained. ([[DW]]: ''[[The War Machines]]'') [[Clive Finch]] also used this name when referring to the Doctor on his website [[Defending the Earth!|Who is Doctor Who?]] ([[DW]]: ''[[Rose (TV story)|Rose]]'').) [[K-9]] was heard on occasion making playful remarks related to the Who name ([[K-9 and Company]]: ''[[A Girl's Best Friend]]'', [[SJA]]: ''[[Invasion of the Bane]]''). It is unclear whether the Doctor himself ever actually used the name, although his [[Third Doctor|third incarnation]] drove an [[Bessie|automobile]] with the licence number "WHO 1" ([[DW]]: ''[[Doctor Who and the Silurians]]'', et al) and not long before his regeneration was seen driving a futuristic vehicle that possibly apocryphal sources suggest may have been called the [[Whomobile]] ([[DW]]: ''[[Invasion of the Dinosaurs]]''). The Doctor wrote a series of [[Doctor Who Discovery Series|children's books]] during his time with [[UNIT]] which were mistakenly published under this name ([[BFA]]: ''[[The Kingmaker]]'').


It has often been unintentionally used when characters wish to learn who the Doctor is and what his name is: "Doctor? Doctor ''who''?"
[[The Master (Terror of the Autons)|The Master]] addressed a [[postcard]] to the Third Doctor as "Dr Who". ([[COMIC]]: {{cs|Fogbound (comic story)}}) [[Missy]] later made two bold claims to [[Bill Potts]] in quick succession, first that "Doctor Who" was in fact the Doctor's real name, and second that it was, more specifically, an alias he had chosen himself [[the Doctor's early life|early on]], as an attempt to "sound mysterious". In this account, he would later drop the "Who" because it was "a tiny bit on-the-nose". The [[Twelfth Doctor]] told Bill she was just trying to wind her up, but he later identified himself as "Doctor Who" to [[Jorj]], noting that he liked the name. ([[TV]]: {{cs|World Enough and Time (TV story)}}) According to one account, a conversation he had with Missy at an earlier point bore out Missy's claim, seeing him explain to her that the name arose from the question of "who to save", calling it "the Doctor's Who". ([[COMIC]]: {{cs|The Road To... (comic story)}})


====Doctor Galloway====
On the occasion of the reading of [[Quences]]'s will, when Quences insisted that one of the Cousins was missing, [[Glospin]] rhetorically asked the crowd: "Can't you guess ''who'' he means?", emphasising the word. This served to identify the [[First Doctor]], the utterance of whose real name had recently been banned within the House to go along with him being disinherited. ([[PROSE]]: {{cs|Lungbarrow (novel)|chaptnum=7}})
[[Edward Waterfield]] made up this name for [[Second Doctor|the Doctor]] when arranging to meet him ([[DW]]: ''[[The Evil of the Daleks]]'').
====The Watcher====
'''The Watcher''' was the name given to an incarnation of the Doctor partway between his [[Fourth Doctor|fourth]] and [[Fifth Doctor|fifth]] incarnations, before they realised his true identity. ([[DW]]: ''[[Logopolis (TV story)|Logopolis]]'')


:''See [[The Watcher]]''
When the First Doctor was using the name "Doctor Caligari" and someone remarked, "Doctor who?" he replied, "Yes, quite right."; ([[TV]]: {{cs|The Gunfighters (TV story)}}) similarly, when [[Jimmy Forbes]] asked "Doctor who?", [[The Doctor (Seven Keys to Doomsday)|another incarnation]] of the Doctor replied "Yes, if you like.", ([[AUDIO]]: {{cs|Seven Keys to Doomsday (audio story)}}) and when [[Bruce (Dr. Who For Keep Australia Beautiful)|Citizen 327KL]] asked "Doctor who?", the [[Fourth Doctor]] simply said "yes". ([[TV]]: {{cs|Dr. Who For Keep Australia Beautiful (TV story)}}) When a time-shifted [[Susan Foreman]] was confronted with the [[Sixth Doctor]] without recognising him, and asked "Who are you?", he replied "Precisely! I am the Doctor". ([[TV]]: {{cs|Dimensions in Time (TV story)}}) The [[Fourth Doctor]] outright stated that his name was "Dr Who" when [[Richard I of England|Richard the Lionheart]] asked for his name; King Richard later referred to him as simply "Who". ([[PROSE]]: {{cs|Doctor Who Discovers The Conquerors (novel)}})
====Doctor Bowman====
Dr. [[Grace Holloway]] invents this name for the [[Eighth Doctor|the Doctor]] whilst introducing him to others. ([[DW]]:''[[Doctor Who: The TV Movie]]'') In this incarnation Doctor later occasionally used the name '''James Alistair Bowman'''. ([[EDA]]: ''[[Seeing I]]'')


====Sir Doctor of Tardis====
The [[TARDIS]]-[[Keeper (Doctor Who and the Doomsday Weapon)|Keeper]] on [[Gallifrey]] also knew the Doctor as "Who". ([[PROSE]]: {{cs|Doctor Who and the Doomsday Weapon (novelisation)}})
Title bestowed upon the [[Tenth Doctor|Doctor]] by [[Queen Victoria]] just before she banished him. ([[DW]]: ''[[Tooth and Claw]]'')


The Doctor later uses this title himself in The Shakespear Code
The computer [[WOTAN]] repeatedly referred to the First Doctor as "Doctor Who". ([[TV]]: {{cs|The War Machines (TV story)}}) Both [[Ian Chesterton]] and [[Vicki Pallister|Vicki]] occasionally called the Doctor "Doctor Who", ([[PROSE]]: {{cs|Doctor Who and the Zarbi (novelisation)}}) as did [[Argon (Terror on Tiro)|Argon]], ([[PROSE]]: {{cs|Terror on Tiro (short story)}}) [[Mitzog]], ([[PROSE]]: {{cs|The Cloud Exiles (short story)}}) and [[Phlege]]. ([[COMIC]]: {{cs|Mission for Duh (comic story)}}) The Doctor's grandson [[John Who|John]] ([[COMIC]]: {{cs|The Klepton Parasites (comic story)}}) used the last name "Who". ([[PROSE]]: {{cs|Beware the Trods! (short story)}})


====Doctor Noble====
The First Doctor used the username "[[Dr who]]" when bidding on the TARDIS, which he lost to [[Buchanan (The Mother Road)|Buchanan]] in a bet, on [[RetroAuction.com]] in [[2006]]. ([[PROSE]]: {{cs|The Mother Road (short story)}})
Introducing themselves as "the Doctor" and "[[Donna Noble]]", [[Solana Mercurio]] (in her standard, patronizing way) misunderstood and refers to them as "Dr. and Mrs. Noble." This provokes an immediate response that they are not married, and "never, ever" will be. ([[DW]]: ''[[Planet of the Ood]]'')


====The DoctorDonna====
<p id="Von Wer">The [[Second Doctor]] briefly used the name "Doktor von Wer" (literally, "Doctor [of] Who") during his visit to Scotland on [[16 April]] [[1746]], ([[TV]]: {{cs|The Highlanders (TV story)}}) and he once signed a message as "Dr W." ([[TV]]: {{cs|The Underwater Menace (TV story)}}) The [[Zaon]]s called him "Doctor Who". ([[PROSE]]: {{cs|Daleks Invade Zaos (short story)}})
After saying the phrase "Doctor, Donna, friends" so many times as defense against a group of rabid [[Ood]], the Ood collective adopted this name for the two of them. [[Ood Sigma]] promised that generations of Ood children would grow up on the [[Ood Sphere]], singing the songs of "the DoctorDonna." ([[DW]]: ''[[Planet of the Ood]]'')  


:''This was foreshadowing of [[Donna Noble]] becoming the half-human/half-[[Time Lord]] being known as [[DoctorDonna]]. ([[DW]]: ''[[Journey's End]]'')''
[[Bessie]]'s license plate during the [[Third Doctor]]'s time at [[UNIT]] read ''[[WHO 1]]''; ([[TV]]: {{cs|Doctor Who and the Silurians (TV story)}}) in the Doctor's [[seventh incarnation]] it read ''[[WHO 7]]'', ([[TV]]: {{cs|Battlefield (TV story)}}) and ''[[WHO 8]]'' in his [[eighth incarnation]]. ([[PROSE]]: {{cs|The Dying Days (novel)}}) [[Olive Hawthorne|Miss Hawthorne]] referred to the Third Doctor as "the great wizard Qui Quae Quod"; those three words all mean "who" in [[Latin]]. ([[TV]]: {{cs|The Dæmons (TV story)}}) The aged [[Keeper of the Files]] referred to the Doctor with the name "Who". ([[PROSE]]: {{cs|Doctor Who and the Doomsday Weapon (novelisation)}}) [[The Curator]] referred to his [[nose]] as a "Who nose", ([[TV]]: {{cs|The Day of the Doctor (TV story)}}) and after discovering his formative role in [[Davros]]'s early life, the [[Twelfth Doctor]] remarked that "Who made Davros." ([[TV]]: {{cs|The Magician's Apprentice (TV story)}})


==Joking aliases and nicknames==
The [[Fourth Doctor]] wrote a series of [[Doctor Who Discovers|children's books]] during his time with [[UNIT]] which were mistakenly published under the name "Doctor Who": they were intended to be "The Doctor, Who Discovers Historical Mysteries", but [[Target Books (in-universe)|the publishers]], due to a miscommunication, presented it as "Doctor Who Discovers Historical Mysteries". ([[AUDIO]]: {{cs|The Kingmaker (audio story)}}) [[The Doctor (fictional character)|A version of the Doctor]] in [[David Karpagnon|a young boy]]'s [[imagination]], based off [[The Doctor (fictional character)#Thirteenth Doctor|a fictional depiction of the Doctor]] off [[Doctor Who (in-universe)|television]], claimed that she was "not allowed" to refer to herself as "Doctor Who", despite personally finding it "brilliant". ([[PROSE]]: {{cs|The Terror of the Umpty Ums (short story)}})
===Snail or Wormhole===
Given to him by his cousins of the [[House of Lungbarrow]], because, unlike [[Loom]]ed [[Gallifreyan]]s, he had a bellybutton. ([[NA]]: ''[[Lungbarrow]]'')


===Professor===
[[K9]] occasionally made playful remarks related to the "Who" name. ([[TV]]: {{cs|A Girl's Best Friend (TV story)}}, {{cs|Invasion of the Bane (TV story)}}) [[Clive Finch]]'s [[www.whoisdoctorwho.co.uk|website]] called him "Doctor Who". ([[TV]]: {{cs|Rose (TV story)}}) Upon reading the [[Tenth Doctor]]'s mind, [[Jeanne-Antoinette Poisson|Reinette]] remarked that "Doctor Who" was "more than just a secret". ([[TV]]: {{cs|The Girl in the Fireplace (TV story)}}) [[The Question|The oldest question in the universe]] was "Doctor Who?" ([[TV]]: {{cs|The Wedding of River Song (TV story)}})
[[Ace]] often called the Doctor '''Professor'''. She continued to use the term, even after he'd asked her not to do it any more . ([[DW]]: ''[[Dragonfire (TV story)|Dragonfire]]'')


===Doc===
== Theta Sigma ==
On rare occasions individuals such as [[Peri Brown]] have referred to the Doctor as "Doc", usually earning a rebuke from the Doctor ([[DW]]: ''[[The Twin Dilemma]]'', et al).
{{main|Theta Sigma}}
The Doctor's old [[Time Lord Academy|Academy]] schoolmate [[Drax]] knew the Doctor as "Theta Sigma", which he informally shortened to "Thete". The [[Fourth Doctor]] repeatedly corrected him when they met again centuries later, wanting to be called Doctor instead. ([[TV]]: {{cs|The Armageddon Factor (TV story)}})


===Mr. Conditional Clause===
Some accounts treated "Theta Sigma" as the Doctor's actual, proper name as far as [[Gallifrey]] was concerned; for example, a communication from [[Gallifrey Databank]] to [[Gallifrey High Command]] noted that [[K9 Mark I]] had been modified by "Time Lord Theta Sigma (also known as 'the Doctor')". ([[PROSE]]: {{cs|K9 and the Time Trap (novel)|page=1}}, {{cs|K9 and the Beasts of Vega (novel)|page=1}}, {{cs|K9 and the Zeta Rescue (novel)|page=1}}, {{cs|K9 and the Missing Planet (novel)|page=1}}) In an [[alternate timeline]] in which [[Rassilon]] failed to finish the [[Eye of Harmony]] before his death, the Doctor never left [[Gallifrey]] and became a commentator rather than a [[renegade Time Lord]]. He was known as [[Theta Sigma (Forever)|Commentator Theta Sigma]]. ([[AUDIO]]: {{cs|Forever (audio story)}})
Given to him by [[Luke Rattigan]] while angered by [[Tenth Doctor|The Doctor's]] tautology of the [[Atmospheric Omission System]]'s name as he called it ATMOS System, The Doctor replied harshly to this saying "No one's said no to you in a long time, have they?"


===[[Mr. Spock]]===
"ΘΣ" was part of [[River Song]]'s message to the [[Eleventh Doctor]] on the universe's oldest cliff-face. ([[TV]]: {{cs|The Pandorica Opens (TV story)}}) River Song claimed and demonstrated on numerous occasions that she knew the Doctor's secret real name. ([[TV]]: {{cs|Forest of the Dead (TV story)}}, {{cs|The Name of the Doctor (TV story)}}, etc.)
[[Rose Tyler]], annoyed with [[Ninth Doctor|the Doctor]] not telling her his name, proceeds to introduce him to [[Jack Harkness|Captain Jack]] as [[Mr. Spock]], after the character from ''[[Star Trek]]''. Jack, not aware of the reference, proceeds to address the Doctor as Mr. Spock until he is corrected. ([[DW]]: ''[[The Empty Child]]'')


===Dumbo===
However, the [[Seventh Doctor]] would later claim that "Theta Sigma" was his "nickname at college" to the coincidentally-named [[Trevor Sigma]]. ([[TV]]: {{cs|The Happiness Patrol (TV story)}}) The [[Ninth Doctor]] would later reiterate this in a duel with [[the Grimminy-Grew]] to guess the other's true name, saying that "old school nicknames don't count". ([[AUDIO]]: {{cs|Station to Station (audio story)}})
[[Donna Noble]] frequently called [[Tenth Doctor|the Doctor]] Dumbo, when she was angry. ([[DW]]: ''[[The Runaway Bride]]'', et al)


===Space man===
In one account, the Doctor considered it a "Time Lord coding", which he couldn't "bear [to be] addressed as". ([[PROSE]]: {{cs|Doctor Who and the Armageddon Factor (novelisation)}}) It identified him uniquely amongst the Time Lords and was not to be spoken outside of the Academy. ([[PROSE]]: {{cs|Falls the Shadow (novel)}}) According to the author of ''[[The Time Lord Letters]]'', a historical document compiling writings by and concerning the Doctor, "Theta Sigma" was also their Academy Student Identification Code. ([[PROSE]] {{cs|The Time Lord Letters (novel)}})
[[Donna Noble]] often called [[Tenth Doctor|the Doctor]] Space man. ([[DW]]: ''[[The Runaway Bride]]'', et al)


===Spartacus===
When [[the Doctor (Alien Bodies)|the Doctor's final incarnation]] permanently died during the [[the Cataclysm|first battle]] of the [[War in Heaven]], [[the Relic (Alien Bodies)|his coffin]] had two [[Greek language|Greek]] letters on it; one of these was "Sigma". ([[PROSE]]: {{cs|Alien Bodies (novel)}})
During a visit to [[Pompeii]], [[Tenth Doctor|the Doctor]] used this name, saying "I am... Spartacus." Donna followed him up by saying, in a parody to the [[Wikipedia:Spartacus (film)|1960 film]], "And so am I." ([[DW]]: ''[[The Fires of Pompeii]]'') This continued the minor misunderstanding that the Doctor and Donna were in fact a couple, which was quickly denied.


===[[Tom Cruise]]; [[Tom Hanks]]; [[Michael Caine]]; [[Pee-Wee Herman]]; Harold Knowles===
== Commonly used aliases ==
=== John Smith ===
John Smith was an alias the Doctor frequently used on [[Earth]] and around [[human]]s when a "standard" name was needed, with the [[Eighth Doctor]] noting it was "the ''nom de guerre'' [he] seem[ed] to keep ending up with". ([[PROSE]]: {{cs|Alien Bodies (novel)}}) It was often preceded by the title "Doctor", though not always — for example, when he was undercover as a teacher at a school or a patient in a hospital. ([[TV]]: {{cs|School Reunion (TV story)}}, {{cs|Smith and Jones (TV story)}}) As "John Smith" was considered a generic name in some [[Earth]] cultures, the Doctor's use of the alias was occasionally treated with scepticism. ([[TV]]: {{cs|Midnight (TV story)}})


The Doctor used a series of aliases based on popular film actors while visiting 1920s Hollywood. ([[IDW]]: ''[[Silver Scream]]'')  
The [[First Doctor]] used a library card with the name Dr J. Smith while living at [[76 Totter's Lane]], ([[TV]]: {{cs|The Vampires of Venice (TV story)}}) as well as for identification when renting the junkyard. ([[PROSE]]: {{cs|The Rag & Bone Man's Story (short story)}}) The inspiration for the alias was [[Aubrey Waites|John Smith]] of [[John Smith and the Common Men]], with which he was familiar through Susan. ([[PROSE]]: {{cs|The Witch Hunters (novel)}})


=== Pretty Boy ===
In their [[Second Doctor|second incarnation]], the name was independently used by his [[companion]] [[Jamie McCrimmon]] while the Doctor was being treated for a concussion, as he saw it being used as a brand name on a metal container. ([[TV]]: {{cs|The Wheel in Space (TV story)}}) The Doctor himself used the alias when being interrogated by a German soldier. ([[TV]]: {{cs|The War Games (TV story)}}) Likewise, [[Chang Lee]] chose to register the name for the [[Seventh Doctor]] while he was en route to get his bullet wounds healed. ([[TV]]: {{cs|Doctor Who (TV story)}})
Given to him by [[River Song]], in [[Silence in the Library]]. It amazed him that he was being called by the moniker, both the fact that it was him, and the adjective in said moniker. ["''I'm'' 'Pretty Boy'?" "''Pretty''?"]


=== [[Gandalf]] ===
The Doctor adopted the name on a semi-regular basis during their [[Third Doctor|third incarnation]] while [[Exile on Earth|exiled on Earth]], when he served as unpaid [[scientific advisor]] to [[UNIT]]. ([[TV]]: {{cs|Spearhead from Space (TV story)}}, {{cs|Inferno (TV story)}}, {{cs|The Time Warrior (TV story)}}) The UNIT files referred to him as "Dr. J.S.". ([[AUDIO]]: {{cs|Tales from the Vault (audio story)}})
In [[Last of the Time Lords]], [[The Master]] refers to the aged version of the Doctor as "[http://en.wikipedia.org/wiki/Gandalf Gandalf]" from [http://en.wikipedia.org/wiki/J._R._R._Tolkien J. R. R. Tolkien]'s ''[http://en.wikipedia.org/wiki/The_Lord_of_the_Rings The Lord of the Rings]''.


==See also==
The Doctor twice changed himself into a human who used the name John Smith. This occurred [[John Smith (Seventh Doctor)|in their seventh incarnation]], ([[PROSE]]: {{cs|Human Nature (novel)}}) and [[John Smith (Tenth Doctor)|in their tenth incarnation]]. ([[TV]]: {{cs|Human Nature (TV story)}})
[[The "Doctor Who?" running joke]]
 
[[Category:Aliases of the Doctor|*]]
Often, the Doctor would use variations of the name, like the online handle "[[jsmith]]", [[jsmith8]]", ([[PROSE]]: {{cs|Blue Box (novel)}}, {{cs|Lonely (short story)}}) the French variation "Jean Forgeron", ([[COMIC]]: {{cs|The Forgotten (comic story)}}) or the [[German language|German]] translation "Johann Schmidt". ([[PROSE]]: {{cs|The Shadow in the Glass (novel)}}; [[AUDIO]]: {{cs|Storm Warning (audio story)}})
 
The [[Thirteenth Doctor]] once made use of a variant, "Jane Smith", while hiding her true identity from [[Martha Jones]]. ([[COMIC]]: {{cs|A Little Help from My Friends (comic story)}})
 
By one account, "John Smith" was the name by which the [[Tenth Doctor (Journey's End)|Meta-Crisis Tenth Doctor]] chose to go upon settling down with [[Rose Tyler]]. ([[COMIC]]: {{cs|Empire of the Wolf (comic story)}})
 
The Tenth Doctor attempted to use this alias when he met the Fourth Doctor. However, he opted out of the second half and instead used [[Rose Tyler|Rose]]'s last name, ending up with "[[John Tyler]]" instead. ([[AUDIO]]: {{cs|Out of Time (audio story)}})
 
=== The Oncoming Storm ===
{{main|The Oncoming Storm}}
The Doctor was referred to as "the Oncoming Storm" by the [[Draconian]]s, ([[PROSE]]: {{cs|Love and War (novel)}}) himself ([[PROSE]]: {{cs|Vampire Science (novel)}}) and in "the ancient legends of the [[Dalek]] [[Skaro|homeworld]]". ([[TV]]: {{cs|The Parting of the Ways (TV story)}}) In [[Draconian (language)|Draconian]], the title was pronounced "Karshtakavaar". ([[PROSE]]: {{cs|Love and War (novel)}}) After being told of the title by the [[Ninth Doctor]], ([[TV]]: {{cs|The Parting of the Ways (TV story)}}) [[Rose Tyler]] called the [[Tenth Doctor]] by the "Oncoming Storm" when she and [[Mickey Smith]] were being prepared for dissection by the [[Clockwork Droid]]s. ([[TV]]: {{cs|The Girl in the Fireplace (TV story)}})
 
The Tenth Doctor later introduced himself as the "Oncoming Storm" to a [[Dalek (Prisoner of the Daleks)|Dalek]] aboard of the ''[[Wayfarer]]'', ([[PROSE]]: {{cs|Prisoner of the Daleks (novel)}}) and referred to the title when confronting a [[rabbit]] he thought was a [[Zygon]]. ([[TV]]: {{cs|The Day of the Doctor (TV story)}})
 
The [[Eleventh Doctor]] began calling himself the "Oncoming Storm" when he misinterpreted [[Sean (The Lodger)|Sean]]'s request to help the [[King's Arms, Colchester|King's Arms]] football team "annihilate" another team at a match. ([[TV]]: {{cs|The Lodger (TV story)}}) He later referred to the title when the Daleks forgot him. ([[TV]]: {{cs|Asylum of the Daleks (TV story)}})
 
=== Destroyer of Worlds ===
As early as their [[Second Doctor|second incarnation]], the Doctor knew that the Daleks had also given them the epithet "[[Ka Faraq Gatri]]", ([[COMIC]]: {{cs|Bringer of Darkness (comic story)}}) which translated as "[[Destroyer of Worlds]]". ([[PROSE]]: {{cs|Timewyrm: Revelation (novel)}}) or possibly, "Nice guy, if you're a [[biped]]". ([[PROSE]]: {{cs|Continuity Errors (short story)}}) He had been awarded the name upon orchestrating the destruction of the Dalek home [[planet]] [[Skaro]] in his [[Seventh Doctor|seventh incarnation]], ([[TV]]: {{cs|Remembrance of the Daleks (TV story)}}) though the Daleks also used it prior to Skaro's destruction. ([[COMIC]]: {{cs|Bringer of Darkness (comic story)}}) [[Davros]] also referred to the Doctor as "the Destroyer of Worlds" after the [[Meta-Crisis Tenth Doctor]] destroyed the [[New Dalek Empire]] on the [[Crucible]]. ([[TV]]: {{cs|Journey's End (TV story)}})
 
== [[First Doctor]] ==
=== Known uses of John Smith ===
* He used it as identification when renting the junkyard from its owner, [[Hawkins (The Rag & Bone Man's Story)|Hawkins]]. ([[PROSE]]: {{cs|The Rag & Bone Man's Story (short story)}})
* The name was on the [[First Doctor]]'s library card while he was living at [[76 Totter's Lane]]. ([[TV]]: {{cs|The Vampires of Venice (TV story)}})
* He used it when [[Rebecca Nurse]] asked his name, realising that a simple "Doctor" would not do. ([[PROSE]]: {{cs|The Witch Hunters (novel)}})
* He used it to check in at Ingersoll's tavern in [[Salem Village|Salem]]. ([[PROSE]]: {{cs|The Witch Hunters (novel)}})
 
=== Other aliases ===
* Dr Foreman: Addressed as "Dr Foreman" by [[Ian Chesterton]] due to the assumption that he shared Susan's (purported) surname. The Doctor responded, "Doctor who? What's he talking about?" ([[TV]]: {{cs|An Unearthly Child (TV story)}}) According to one source, however, he had previously used the alias while still on [[1963]] [[Earth]] during his trial for the killing of a werewolf. ([[PROSE]]: {{cs|The Juror's Story (short story)}})
** Doctor I. M. Foreman: The Doctor's application for [[Susan Foreman]]'s admittance into [[Coal Hill School]] used this alias. ([[PROSE]]: {{cs|The Time Lord Letters (novel)}})
** Earl Foreman: When [[Barbara Wright]] was posing as [[Lady]] Barbara Foreman in the [[Victorian era]], the Doctor posed as her father with the title of [[Earl]]. ([[PROSE]]: {{cs|The Duke's Folly (short story)}})
* [[Wissfornjarl]]: While on the Isle of [[Hoy]], [[Orkney]] in [[1956]], the Doctor was given this name by the [[witch|spaywife]] [[Janet McKay]]. After seeing his arrival in the TARDIS, she mistook him for the island's protector from [[Norse mythology]]. He believed that it was simplest to accept the name. The name meant "Wise Old Chieftain," which Ian thought was appropriate. ([[AUDIO]]: {{cs|The Revenants (audio story)}})
* Benjamin Jackson: Used when he returned to the [[Salem Village]] on [[18 July]] [[1692]]. ([[PROSE]]: {{cs|The Witch Hunters (novel)}})
* Doctor Caligari: The Doctor used it when he arrived in [[Tombstone, Arizona|Tombstone]], [[Arizona]] in [[October]] [[1881]], impersonating a magician. However, the locals mistook him for [[Doc Holliday]]. ([[TV]]: {{cs|The Gunfighters (TV story)}})
 
=== Impersonations ===
* Dr [[Samuel Smythe]] ([[PROSE]]: {{cs|The Nine-Day Queen (short story)}})
* [[Maximus Pettulian]]: While visiting the [[Roman Empire]] shortly before the [[Great Fire of Rome]] in [[July]] [[64]], the Doctor briefly impersonated a murdered lyre player named Maximus Pettulian in the court of [[Nero]]. ([[TV]]: {{cs|The Romans (TV story)}})
* [[Zeus]]: When the [[Greek]] warrior [[Achilles]] mistook the Doctor for Zeus posing as an old man in circa [[BC|1200 BC]], he went along with it, until the unconvinced [[Agamemnon]] spoiled the Doctor's ruse. ([[TV]]: {{cs|The Myth Makers (TV story)}})
* [[Black Dalek Leader|Dalek Supreme]]: [[Temporal displacement|Displaced]] in [[time]], the Doctor secretly co-opted the [[casing]] of the Dalek Supreme who [[Dalek time machine|fled]] the [[Time Destructor Incident|destruction]] of [[Kembel]] in a dying state. He took charge of the other [[Dalek]]s, who were instructed to hunt down the [[Robot Doctor]]. He was also addressed as the "[[Supreme Dalek]]" or just "Supreme". ([[AUDIO]]: {{cs|Fugitive of the Daleks (audio story)}})
* The [[Master of the Trods]] ([[COMIC]]: {{cs|Return of the Trods (comic story)}})
 
=== Nicknames ===
* Snail / Wormhole: Given to him by his cousins of the [[House of Lungbarrow]], because, unlike [[Loom]]ed [[Gallifreyan]]s, he had a bellybutton. ([[PROSE]]: {{cs|Lungbarrow (novel)}}) [[The Hermit]] also called him this. ([[PROSE]]: {{cs|The Three Paths (short story)}})
* The Magician: Because of what he was told about the TARDIS, [[Marco Polo]] came to playfully call the Doctor a [[magician]]. [[Tegana]] also referred to him as such several times, both to his face and while plotting with [[Acomat]]. ([[TV]]: {{cs|Marco Polo (TV story)}})
* Old-Man White-Hair: A nickname given to the First Doctor by [[Ace]]. ([[AUDIO]]: {{cs|The Light at the End (audio story)}})
* Pop ([[TV]]: {{cs|The Gunfighters (TV story)}})
* Sawbones: A nickname first given to the Doctor by the pirate [[Cherub (The Smugglers)|Cherub]], which was then used by the rest of [[Samuel Pike]]'s crew. ([[TV]]: {{cs|The Smugglers (TV story)}})
* Pops: Addressed as such by an [[American sergeant]] at [[Snowcap]] base due to his old age. ([[TV]]: {{cs|The Tenth Planet (TV story)}})
* [[Mister Pastry]]: A name given to him by his [[twelfth incarnation]] who found his complaining funny. ([[TV]]: {{cs|Twice Upon a Time (TV story)}})
* [[Mary Berry (in-universe)|Mary Berry]]: Called this by his [[twelfth incarnation]] after fleeing the [[Testimony Foundation]]'s ship. ([[TV]]: {{cs|Twice Upon a Time (TV story)}})
* [[Corporal Jones]]: Called this by his [[twelfth incarnation]] as he prepared to head up into the tower on [[Villengard]] to confront [[Rusty (Into the Dalek)|Rusty]]. ([[TV]]: {{cs|Twice Upon a Time (TV story)}})
 
=== Titles and epitaphs ===
* The Traveller from Beyond Time: The epithet given to the Doctor by the [[Elder]]s. ([[TV]]: {{cs|The Savages (TV story)}}) It was later used as a name by the [[Seventh Doctor]]. ([[AUDIO]]: {{cs|Afterlife (audio story)}})
* The Legged Magician ([[COMIC]]: {{cs|Enter: The Go-Ray (comic story)}})
* [[Lord of Misrule]]: A name given to one who presided over a feast day, as the Doctor did at [[Sonning Palace]]'s Epiphany feast in 900. ([[AUDIO]]: {{cs|The Doctor's Tale (audio story)}})
 
== [[Second Doctor]] ==
=== Known uses of John Smith ===
* The John Smith alias was given to him by [[Jamie McCrimmon|Jamie]], having seen a [[John Smith & Associates]] apparatus, and was used aboard [[Space Station W3]]. ([[TV]]: {{cs|The Wheel in Space (TV story)}})
* He later used it when questioned by Lt. [[Lucke]], a [[German]] soldier in [[World War I]]. ([[TV]]: {{cs|The War Games (TV story)}})
 
=== Other aliases ===
* Gaius Iunius Faber: "Iunius Faber" being the Latin equivalent of John Smith. The Second Doctor used this alias during his visit to [[Bruttium]], [[Italy]] in [[BC|71 BC]]. ([[PROSE]]: {{cs|The Slave War (short story)}})
* Doctor Galloway: [[Edward Waterfield]] made up this name for the [[Second Doctor]] when arranging to meet him. ([[TV]]: {{cs|The Evil of the Daleks (TV story)}})
* The Wizard of Omega ([[COMIC]]: {{cs|The Witches (comic story)}})
* Dr Rip Van Winkle: A name given to him by Mrs Craig. ([[PROSE]]: {{cs|The Indestructible Man (novel)}})
* Doctor Gond ([[TV]]: {{cs|The Krotons (TV story)}})
* Citizen-Representative Henri Dupont ([[PROSE]]: {{cs|World Game (novel)}})
* Doctor Jean Dupont ([[PROSE]]: {{cs|World Game (novel)}})
* Doctor Mason: An alias used when he took part in a jury at the trial of the [[First Doctor]] for killing a werewolf. ([[PROSE]]: {{cs|The Juror's Story (short story)}})
 
=== Impersonations ===
* The Examiner: Still not sure if he was "the Doctor" after his first regeneration, the Doctor took on the identity of an Examiner from Earth after the [[The Examiner (The Power of the Daleks)|original one]] was assassinated by [[Bragen]]. ([[TV]]: {{cs|The Power of the Daleks (TV story)}}) Later in his life, he masqueraded as another Examiner, this time of a non-existing War Prison in an attempt to liberate Jamie from said prison. ([[TV]]: {{cs|The War Games (TV story)}})
* [[George Meadows]] [[Chameleon (humanoid)|Chameleon]]: On order to enter the [[Chameleon satellite]], the Doctor pretended to be the [[George Meadows (Chameleon)|George Meadows Chameleon]], saying he had been processed twice to explain his new appearance. ([[TV]]: {{cs|The Faceless Ones (TV story)}})
* [[Ramón Salamander]] ([[TV]]: {{cs|The Enemy of the World (TV story)}})
* The [[Karkus]] ([[TV]]: {{cs|The Mind Robber (TV story)}})
* [[McCrimmon of McCrimmon]]: The Doctor masqueraded as the hereditary [[chieftain]] of [[Jamie McCrimmon]] in order to deceive [[the War Chief]] into believing that he had successfully [[brainwash]]ed Jamie. ([[TV]]: {{cs|The War Games (TV story)}})
* [[Napoléon Bonaparte]] ([[PROSE]]: {{cs|World Game (novel)}})
* [[Dalek Supreme (The Doctor Strikes Back)|Supreme Dalek]] ([[COMIC]]: {{cs|The Doctor Strikes Back (comic story)}})
 
=== Nicknames ===
* Clown: A nickname bestowed upon him by the [[First Doctor]] for his comical dress sense. ([[TV]]: {{cs|The Three Doctors (TV story)}})
* Beatles Haircut: A nickname given to the Second Doctor by [[Ace]]. ([[AUDIO]]: {{cs|The Light at the End (audio story)}})
* Archibald ([[PROSE]]: {{cs|Fallen Angel (short story)}})
* Alphonse ([[PROSE]]: {{cs|Fallen Angel (short story)}})
* High-Brain ([[TV]]: {{cs|The Krotons (TV story)}})
* Scarecrow: Spitefully used as a retort against his unkempt appearance by the [[Third Doctor]] in return for being called "fancy pants". ([[TV]]: {{cs|The Five Doctors (TV story)}})
 
=== Titles and epitaphs ===
* The [[Cosmic Hobo]] ([[PROSE]]: {{cs|Beast of Fang Rock (novel)}}, {{cs|The Dogs of War (LS short story)}}, {{cs|The Enfolded Time (short story)}})
* The Comedian: A title given to the Second Doctor by {{Ainley}} for his comical personality. ([[GAME]]: {{cs|Destiny of the Doctors (video game)}})
 
== [[Third Doctor]] ==
=== Known uses of John Smith ===
* The [[Third Doctor]] regularly called himself "John Smith" when working as [[UNIT]]'s scientific adviser. ([[TV]]: {{cs|Spearhead from Space (TV story)}}, {{cs|The Time Warrior (TV story)}})
* He used it on the planet [[Kastopheria]] when asked by Administrator Charteris. ([[PROSE]]: {{cs|Catastrophea (novel)}})
 
=== Other aliases ===
* Quiquaequod: [[Olive Hawthorne|Miss Hawthorne]] referred to the Doctor as "the great wizard Quiquaequod" while attempting to bluff the villagers of [[Devil's End]] into releasing him. ([[TV]]: {{cs|The Dæmons (TV story)}}) Later used in his [[seventh incarnation]]. ([[PROSE]]: {{cs|Sanctuary (novel)}})
* Doctor Noble: An alias used when he took part in a jury at the trial of the [[First Doctor]] for killing a werewolf. ([[PROSE]]: {{cs|The Juror's Story (short story)}})
* [[Prisoner 177781]]: The Doctor was recorded by this designation when he was briefly arrested by the [[British Army]] alongside [[Sarah Jane Smith]], who was recorded as [[Prisoner 177782]]. ([[TV]]: {{cs|Invasion of the Dinosaurs (TV story)}})
 
=== Impersonations ===
* The Doctor found himself forced to impersonate an Earth delegate when the real delegate, [[Amazonia]], failed to arrive on [[Peladon]]. ([[TV]]: {{cs|The Curse of Peladon (TV story)}})
* {{Delgado|c}}: Forced to masquerade as the Master when the latter switched bodies with him. ([[PROSE]]: {{cs|The Switching (short story)}})
* The [[Gold Dalek (Day of the Daleks)|Gold Dalek]] ([[TV]]: {{cs|Frontier in Space (TV story)}})
* [[El Llama]] ([[PROSE]]: {{cs|Catastrophea (novel)}})
* [[Doris Griffiths]] ([[TV]]: {{cs|The Green Death (TV story)}})
* [[Linx]] ([[TV]]: {{cs|The Time Warrior (TV story)}})
* [[Robot Knight]] ([[TV]]: {{cs|The Time Warrior (TV story)}})
 
=== Nicknames ===
* [[John Watson|Dr. Watson]]: Called as such by the Brigadier in retaliation to the Doctor belittling his intelligence by saying he was "not exactly a little [[Sherlock Holmes]]". ([[TV]]: {{cs|Doctor Who and the Silurians (TV story)}})
* Monsieur Mystery ([[COMIC]]: {{cs|Timebenders (comic story)}})
* Dandy: A nickname bestowed upon him by the [[First Doctor]] for his upper-class attire. ([[TV]]: {{cs|The Three Doctors (TV story)}})
* Thedoct>Orism: The Doctor's title as interpreted by the [[Siccati]]. It could be shortened to Thedoct. ([[PROSE]]: {{cs|Neptune (short story)}}, {{cs|Sedna (short story)}})
* Frilly Shirt: A nickname given to the Third Doctor by [[Ace]]. ([[AUDIO]]: {{cs|The Light at the End (audio story)}})
* The Spokesperson ([[TV]]: {{cs|Death to the Daleks (TV story)}})
* White Thing ([[COMIC]]: {{cs|After the Revolution (comic story)}})
* Fancy Pants: An insult used by the [[Second Doctor]] to get a parting shot in at his successor's appearance before the incarnations went their separate ways. ([[TV]]: {{cs|The Five Doctors (TV story)}})
 
=== Titles and epitaphs ===
* The Great Healer ([[PROSE]]: {{cs|The Spear of Destiny (short story)}})
* The Wizard ([[TV]]: {{cs|The Time Warrior (TV story)}})
* The Time Warrior ([[PROSE]]: {{cs|A Soldier's Education (short story)}})
 
== [[Fourth Doctor]] ==
=== Known uses of John Smith ===
* A French variation, "Brigadier-General Jean Forgeron," was used by the Doctor when met by French soldiers in the labyrinth underneath [[Paris]]. ([[COMIC]]: {{cs|The Forgotten (comic story)}})
* He used the name in [[Budapest]] in [[1980]]. ([[AUDIO]]: {{cs|The Labyrinth of Buda Castle (audio story)}})
* [[Figment]] knew the Fourth Doctor by the name "Jonathan Smith". ([[POEM]]: {{cs|Afterwords (poem)}})
 
=== Other aliases ===
* The Thedoctor: An interpretation of the Doctor's title when he was mistaken for a [[toody]]. He played along in case correcting the mistake proved [[Culture|culturally]] insensitive. It was usually shortened to The. ([[PROSE]]: {{cs|Last Man Running (novel)}})
* Citizen Doctor ([[TV]]: {{cs|The Sun Makers (TV story)}})
* ?: The Doctor signed a document with a question mark prior to the [[Sontaran]] [[Sontaran invasion of Gallifrey|invasion]] of [[Gallifrey]]. ([[TV]]: {{cs|The Invasion of Time (TV story)}})
* [[Drax]] ([[COMIC]]: {{cs|Time Lady of Means (comic story)}})
* [[Tom Baker (in-universe)|Tom Baker]] ([[PROSE]]: {{cs|Bafflement and Devotion (short story)}})
 
=== Impersonations ===
* [[Stanley (Double Trouble)|Stanley]] ([[COMIC]]: {{cs|Double Trouble (comic story)}})
* [[Hieronymous (The Masque of Mandragora)|Hieronymous]]: Stole Hieronymous's robes and pretended to be him to defeat the [[Mandragora Helix]]. ([[TV]]: {{cs|The Masque of Mandragora (TV story)}})
* [[Christopher Marlowe]] ([[PROSE]]: {{cs|All Done with Mirrors (short story)}})
* Doctor Svengali ([[PROSE]]: {{cs|Ghost Ship (novel)}})
* [[Xoanon]] ([[TV]]: {{cs|The Face of Evil (TV story)}})
* [[Oskin]]: The Doctor masqueraded as Oskin in order to destroy [[The Asteroid]]. ([[AUDIO]]: {{cs|Requiem for the Rocket Men (audio story)}})
* The [[Moderator General]] ([[COMIC]]: {{cs|City of the Damned (comic story)}})
* [[Meglos]] ([[TV]]: {{cs|Meglos (TV story)}})
 
=== Nicknames ===
* Mastermind ([[COMIC]]: {{cs|Death Flower (comic story)}})
* The Sorcerer ([[TV]]: {{cs|The Masque of Mandragora (TV story)}})
* Long-Scarf Big-Eyes: A nickname given to the Fourth Doctor by [[Ace]]. ([[AUDIO]]: {{cs|The Light at the End (audio story)}})
* Master: [[K9]]'s affectionate nickname for the Doctor. ([[TV]]: {{cs|The Invisible Enemy (TV story)}})
* Teeth and Curls: Referred to this by the [[Ninth Doctor]] to identify this incarnation while speaking to his [[Tenth Doctor|tenth]] and [[twelfth incarnation]]s ([[COMIC]]: {{cs|The Lost Dimension (comic story)}}), and by the [[Third Doctor]] to [[Sarah Jane Smith]]. ([[TV]]: {{cs|The Five Doctors (TV story)}})
* Big Eyes ([[PROSE]]: {{cs|Shada (novelisation)}}'
* Scarfy Me: Addressed as such by the [[Thirteenth Doctor]]. ([[WC]]: {{cs|Doctors Assemble! (webcast)}})
* Bug-Eyes ([[COMIC]]: {{cs|The Deal (comic story)}})
* Curly ([[COMIC]]: {{cs|Doctor Who and the Free-Fall Warriors (comic story)}})
 
=== Titles and epitaphs ===
* The Bohemian / The Wanderer: Titles given to the Fourth Doctor by [[the Master]]. ([[GAME]]: {{cs|Destiny of the Doctors (video game)}})
* The [[Evil One]]: The [[Sevateem]] tribe referred to the Doctor as "the Evil One". [[Xoanon]], the supercomputer which they worshipped, had two personalities, one of which was based on the [[Fourth Doctor]]. ([[TV]]: {{cs|The Face of Evil (TV story)}})
* The Wizard: [[Emily (The Child)|Emily]], a child in whom [[Leela]] was reborn after her death, referred to the Doctor as "the Wizard." ([[AUDIO]]: {{cs|The Child (audio story)}})
* The Boggle-Eyed Demon: [[Delthea]]'s people believed the Doctor was a malevolant being from their history who had brought their civilisation to ruin by destroying the [[Protector]]. He was remembered as the Boggle-Eyed Demon is their [[pantomime]]s and other stories which villified him. ([[PROSE]]: {{cs|The Destroyers (short story)}})
* Everywhere Man: The [[Tarl]] leader [[Ergu]] opted to refer to the Doctor as this was after asking him about his origins. The Doctor answered he came from "everywhere". ([[AUDIO]]: {{cs|The Exxilons (audio story)}})
* The Great Emoter ([[COMIC]]: {{cs|City of the Damned (comic story)}})
 
== [[Fifth Doctor]] ==
=== Known uses of John Smith ===
* On [[Folly (planet)|Folly]], the Fifth Doctor was believed to be a criminal mastermind known as Dr John Smith. ([[AUDIO]]: {{cs|Doing Time (audio story)}})
* The Fifth Doctor used the name when he worked as a historical advisor on the short film ''[[The Devil's Whisper]]'', the first of the constituent short films of the [[1976]] portmanteau film ''[[Doctor Demonic's Tales of Terror]]''. ([[AUDIO]]: {{cs|Special Features (audio story)}})
* The [[Fifth Doctor]] used the name when in [[Reykjavik]] on [[12 February]] [[2144]]. ([[AUDIO]]: {{cs|Repeat Offender (audio story)}})
* The Fifth Doctor used it on both the [[Confederate States of America|Confederate]] and [[United States of America|Union]] sides of the [[American Civil War]] as a guise under which he could render medical assistance, while having the freedom to search for his lost [[companion]]s, [[Peri Brown|Peri]] and [[Erimem]]. He received some local publicity under the name after delivering the baby of the mayor of [[Gable]], [[West Virginia]]. He was personally known to [[Abraham Lincoln]] by this name after he had saved the [[president of the United States|president]]'s life during an [[assassination]] attempt in [[Richmond, Virginia|Richmond]], [[Virginia]]. ([[PROSE]]: {{cs|Blood and Hope (novel)}})
* At [[The Doctor's trial (The Juror's Story)|the First Doctor's trial]] in [[1963]], the Fifth Doctor used the name "Dr. Smith" as part of the [[jury]]. ([[PROSE]]: {{cs|The Juror's Story (short story)}})
 
=== Other aliases ===
* Gaius Claudius Maximus: The Doctor used this name while visiting [[Cumae]] in [[BC#1st century B.C.|63 BC]]. ([[AUDIO]]: {{cs|Tartarus (audio story)}})
* Doctor Walters: The Doctor used this name while stuck in Victorian [[London]] without his TARDIS for a year from [[November]] [[1866]] to [[1867]]. ([[AUDIO]]: {{cs|The Haunting of Thomas Brewster (audio story)}})
* Dr Jonas Smythe: The Doctor used this name when working with [[Liz Shaw]] in [[Italy]]. ([[PROSE]]: {{cs|Flashpoint (short story)}})
* The Supremo: The Doctor called himself "the Supremo" while leading [[The Alliance (Warmonger)|the Alliance]] against the army of the [[renegade Time Lord]] [[Morbius]]. Originally, his title was "Supreme Controller", but the [[Ogron]]s of his personal guard could not pronounce it and shortened it to the simpler "Supremo". ([[PROSE]]: {{cs|Warmonger (novel)}})
 
=== Impersonations ===
* Dr. Sebastian Rowley ([[PROSE]]: {{cs|A Town Called Eternity (short story)}})
* [[Pallister (The Entropy Plague)|Pallister]] ([[AUDIO]]: {{cs|The Entropy Plague (audio story)}})
 
=== Nicknames ===
* Cricket Boy: A nickname given to the Fifth Doctor by [[Ace]]. ([[AUDIO]]: {{cs|The Light at the End (audio story)}})
* Demon: Called so by [[Kamelion]], while the android was disguised as King [[John of England]]. ([[TV]]: {{cs|The King's Demons (TV story)}})
 
== [[Sixth Doctor]] ==
=== Known uses of John Smith ===
* "[[jsmith]]" was the [[Sixth Doctor]]'s username online. ([[PROSE]]: {{cs|Blue Box (novel)}})
* When he was arrested for trespassing at [[Greenstreet Police Station]] in [[1974]], the Doctor gave his name as "Dr John Smith". ([[AUDIO]]: {{cs|Urgent Calls (audio story)}})
* The Doctor sent an email signed "Smith, Dr. John" to [[Young girl (Academic Notes)|young girl]] to warn her of [[Mr. Silhouette]]. ([[PROSE]]: {{cs|Academic Notes (short story)}})
* He also used it to infiltrate the [[Dominus Institute]] in [[2016]]. ([[AUDIO]]: {{cs|Vampire of the Mind (audio story)}})
* In [[Lancashire]] in the [[19th century]], the Doctor introduced himself as "Dr John Smith" to [[Samuel Belfrage]]. ([[AUDIO]]: {{cs|Industrial Evolution (audio story)}})
* When infiltrating the Third Reich to investigate the origins of the Fourth Reich in [[2001]], he made fake credentials identifying himself as Major-General Johann Schmidt of the Berlin Fifth Medical Corps. ([[PROSE]]: {{cs|The Shadow in the Glass (novel)}})
* The Doctor used the name while working in Hut 12A at [[Bletchley Park]] in [[1944]]. ([[AUDIO]]: {{cs|Criss-Cross (audio story)}})
* He also used the name while posing as a British [[MI6|SIS]] agent in [[Vienna]] in [[1948]]. ([[AUDIO]]: {{cs|Quicksilver (audio story)}})
* In [[1957]], the Sixth Doctor and [[Melanie Bush]] investigated [[UFO]] sightings in the proximity of [[Hammerston]], [[Louisiana]] and became involved in the production of the film ''[[Swamp of Horrors]]'' after attacking an actor in a rubber alien suit whom they mistook for a genuine alien. The Doctor, who used the pseudonym "John Smith", and Mel were assumed to be uncredited actors playing fictional characters by film critics. ([[PROSE]]: {{cs|Swamp of Horrors (1957) - Viewing Notes (short story)|Swamp of Horrors (1957) - Viewing Notes}})
 
=== Other aliases ===
* Professor Erasmus Potgeiter of Pretoria Scientific Institute ([[PROSE]]: {{cs|Players (novel)}})
* Patient #58204 ([[COMIC]]: {{cs|Façades (comic story)}})
* Nico Blair: Briefly used when trying to convince [[Carburetor]] that the [[Piscon]]s were part of a television prank. Nico Blair was supposedly an expert on alien special effects. ([[AUDIO]]: {{cs|Peri and the Piscon Paradox (audio story)}})
* [[Albert Einstein]]: Used by the Doctor while meeting with [[Charles Darwin]] in the [[Galápagos Islands]] in [[1835]]. ([[AUDIO]]: {{cs|Bloodtide (audio story)}})
* The Sandman: Adopted as part of a plan to stop an alien race attacking others by inspiring the idea of him as a monster. ([[AUDIO]]: {{cs|The Sandman (audio story)}}) It was later used as a name by the [[Seventh Doctor]]. ([[AUDIO]]: {{cs|The Rapture (audio story)}}, {{cs|Afterlife (audio story)}})
* Professor Claudius Dark: Used while the Doctor was undercover in the 19th century, so as to avoid the attention of [[Kempston|Mr Kempston]] and [[Hardwick|Mr Hardwick]] ([[AUDIO]]: {{cs|The Hourglass Killers (audio story)}}) as well as [[Victoria|Queen Victoria]]. ([[AUDIO]]: {{cs|Jago & Litefoot Forever (audio story)}})
* Mr Nocturne: Used when he arrived a few days early after receiving a message from [[Henry Gordon Jago]] and [[George Litefoot]]. ([[AUDIO]]: {{cs|Masterpiece (audio story)}})
* Norman Deplume: The name gives when he wanted to hide his identity from [[Thomas Brewster]], and later the [[Locus (The Crimes of Thomas Brewster)|Locus]]. [[Patricia Menzies]] poses as the Doctor while he acts as her companion. ([[AUDIO]]: {{cs|The Crimes of Thomas Brewster (audio story)}})
* Dr Lethbridge-Stewart: The name given to [[Webster (Static)|Webster]] when he and [[Constance Clarke]] came to the army base at [[Abbey Marston]]. ([[AUDIO]]: {{cs|Static (audio story)}})
 
=== Impersonations ===
* [[Grigori Kalashnikov|Dr Grigori Kalashnikov]]: The Doctor adopted the identity of a [[Moscow University]] scientist when he arrived at the [[Baikonur Cosmodrome]] in [[Kazakhstan]] on [[10 November]] [[1963]]. ([[AUDIO]]: {{cs|1963: The Space Race (audio story)}})
* [[Zarl]]: After the Doctor had chased him to his death, the Doctor impersonated Zarl to maintain the [[Web of Time]] and his previous incarnation's meeting with Zarl. ([[AUDIO]]: {{cs|Peri and the Piscon Paradox (audio story)}})
* [[Jack Harkness|Captain Jack Harkness]]: Posed as Jack when the latter's impersonation of the Doctor landed him in trouble. ([[AUDIO]]: {{cs|Piece of Mind (audio story)}})
* [[Banto Zame]]: Posed as Zame when the latter's impersonation of the Doctor landed him in trouble. ([[AUDIO]]: {{cs|The One Doctor (audio story)}})
 
=== Nicknames ===
* Porky ([[TV]]: {{cs|Revelation of the Daleks (TV story)}})
* Joseph: A nickname given to the Sixth Doctor by [[Ace]]. ([[AUDIO]]: {{cs|The Light at the End (audio story)}})
* Old One: Given by [[Balazar]] while investigating [[Earth|Ravolox]]. The Doctor took offence, as by Gallifreyan terms, he was actually still quite young. ([[TV]]: {{cs|The Mysterious Planet (TV story)}})
* Curly ([[AUDIO]]: {{cs|Wink (audio story)}})
* Mr Rainbow Coat ([[AUDIO]]: {{cs|The Rani Elite (audio story)}})
* [[Boomer]]: Given in annoyance by the [[Thirteenth Doctor]]. ([[WC]]: {{cs|Doctors Assemble! (webcast)}})
 
=== Titles and epitaphs ===
* jeoffrey ([[PROSE]]: {{cs|Blue Box (novel)}})
* Merryman ([[PROSE]]: {{cs|Blue Box (novel)}})
* Doktor of TARDIS: Used by the [[Sixth Doctor]] to move discreetly around an alternate version of the city of Rome. ([[PROSE]]: {{cs|State of Change (novel)}})
* Lazarus: The code-name that [[the Forge]] used to refer to the Sixth Doctor. ([[AUDIO]]: {{cs|Project Lazarus (audio story)|Project: Lazarus}}; [[PROSE]]: {{cs|Project Valhalla (novel)|Project: Valhalla}})
* The Dark One / He Whose Name Dare Not Be Mentioned: Names given to the [[Sixth Doctor]]/[[the Valeyard]] in the legends of the Great Kingdom, an unstable [[alternate timeline|alternate version]] of [[London]] created by the botched summoning of [[Saraquazel]]. ([[PROSE]]: {{cs|Millennial Rites (novel)}})
 
== [[Seventh Doctor]] ==
=== Known uses of John Smith ===
* He pretended to be a "Dr. John Smith" sent to replace Dr. Lewis. ([[COMIC]]: {{cs|Cat and Mouse (comic story)}})
* He used the German variation "Johann Schmidt" while impersonating the [[Reichsinspektor General]]. ([[PROSE]]: {{cs|Timewyrm: Exodus (novel)}})
* The Doctor opened an account at [[Coutts Bank]] in [[1868]] with the name "R. J. Smith Esq.". ([[PROSE]]: {{cs|Birthright (novel)}})
* The Seventh Doctor was known as "the Infamous General Smith" by the [[Sontaran]]s. ([[PROSE]]: {{cs|Shakedown (novelisation)}})
* The Seventh Doctor referred to himself as Dr John Smith, a governmental official, when he introduced himself to [[Peggy Marsden]] and [[Albert Marsden]]. ([[AUDIO]]: {{cs|Protect and Survive (audio story)}})
* He again used "Johann Schmidt" when posing as [[Schumacher]]'s superior. ([[AUDIO]]: {{cs|Protect and Survive (audio story)}})
* Johannes Smither: ([[AUDIO]]: {{cs|Kingdom of Silver (audio story)}})
* [[Chang Lee]] coincidentally used the "John Smith" alias when sending him to a hospital. ([[PROSE]]: {{cs|The Novel of the Film (novelisation)}})
 
=== Other aliases ===
* Commander John Ballard: The Doctor was mistaken for the new commander of [[Dark Space 8]] after he and [[Melanie Bush]] were [[teleport]]ed aboard the station following the destruction of Ballard's shuttle. ([[AUDIO]]: {{cs|Bang-Bang-a-Boom! (audio story)}})
* ?: The Doctor signed a document with a question mark during a visit to [[London]] in [[1963]]. ([[TV]]: {{cs|Remembrance of the Daleks (TV story)}})<ref>The actual signature is not seen on screen, but Sylvester McCoy's hand movement in the scene makes it clear that he signed a question mark.</ref>
* John Rutherford: Using this pseudonym, the Doctor was elected as an independent member of [[Houses of Parliament|Parliament]] in [[May]] [[1963]] on a platform of nuclear disarmament. ([[AUDIO]]: {{cs|1963: The Assassination Games (audio story)}})
* Merlin: The Doctor was recognised the people of [[Arthur's World]] as [[Merlin]], although he had not been him yet. He discovered evidence that the Merlin whom these people knew was [[The Doctor (Battlefield)|a future incarnation of his]]. ([[TV]]: {{cs|Battlefield (TV story)}})
* Norman Brown: Used, with a West Country accent, to hide his identity from [[Sheldukher]]. ([[PROSE]]: {{cs|The Highest Science (novel)}})
* Jean Forgeron de Gallifrey: Used with the title of "Royal Observer from the court of Alexander". ([[PROSE]]: {{cs|Sanctuary (novel)}})
* Billy Spot: Used to infiltrate [[Gordy Scraton]]'s organisation, with a London accent for further disguise. ([[PROSE]]: {{cs|Bad Therapy (novel)}})
* Isha: Used while in [[1560]] [[Japan]]. ([[PROSE]]: {{cs|The Room With No Doors (novel)}})
* Pendragon: Used when undercover as leader of the Triad organisation [[Tao Te Lung]]. ([[PROSE]]: {{cs|Bullet Time (novel)}})
* Septimus Doctus: Used when visiting [[Julius Caesar]]. ([[COMIC]]: {{cs|Crossing the Rubicon (comic story)}})
* Dr Vaughn Sutton: Used on [[Perfugium]], ([[AUDIO]]: {{cs|Master (audio story)}}) based on an alias used by [[Grayvorn|Lord Grayvorn]]. ([[AUDIO]]: {{cs|Excelis Decays (audio story)}})
* Richard A. Fells: The Doctor used this name while posing as a prisoner in [[Alcatraz]]. ([[PROSE]]: {{cs|Inmate 280 (short story)}})
* Mr Ashcroft: The Doctor used this name to acquire recordings from [[Bianca's]]. ([[AUDIO]]: {{cs|The Wormery (audio story)}})
* John Doe: The customary name in America for an unidentified [[human]] male was applied to the apparently dead [[Seventh Doctor|Doctor]] by the staff of [[Walker General Hospital]], and he was given a "John Doe" toe tag before being wheeled into the morgue's freezer, where he subsequently [[Regeneration|regenerated]] into his [[Eighth Doctor|eighth incarnation]]. At no point did the Doctor use this alias himself. ([[TV]]: {{cs|Doctor Who (TV story)}})
 
=== Impersonations ===
* [[Ea]]: After [[Gilgamesh]] assumed him to be the [[god]] of [[wisdom]], Ea, the Doctor decided to go along with it. ([[PROSE]]: {{cs|Timewyrm: Genesys (novel)}})
* Dr. Dumont-Smith: ([[PROSE]]: {{cs|Loving the Alien (novel)}})
 
=== Nicknames ===
* Sunbeam ([[TV]]: {{cs|Paradise Towers (TV story)}})
* Professor: [[Ace]] called the Doctor this instead of his preferred name. ([[TV]]: {{cs|Dragonfire (TV story)}} et al.)
 
=== Titles and epitaphs ===
* [[Time's Champion]]: A title given to the Doctor for his service to [[Time (mythology)|Time]] during his [[seventh incarnation]], ([[PROSE]]: {{cs|Love and War (novel)}}) which was unique only to the Seventh Doctor. ([[PROSE]]: {{cs|The Room With No Doors (novel)}})
* Star Traveller: Referred to a such by [[William Blake]]. ([[PROSE]]: {{cs|The Pit (novel)}})
* [[Fate (Hark! The Herald Angels Sing)|Fate]]'s Accomplice: Among the Seventh Doctor's titles listed by the [[Carnival Queen]]. ([[PROSE]]: {{cs|Christmas on a Rational Planet (novel)}})
* The Umbrella Man: After he rewrote her history, [[Elizabeth Klein]] referred to him as such given she was not aware of his identity. ([[AUDIO]]: {{cs|Dominion (audio story)}})
* The Scottish Doctor: When [[Honoré Lechasseur]] once met the Doctor, he described him as such, as well as sporting a beard. ([[PROSE]]: {{cs|The Cabinet of Light (novel)}})
* The Destroyer of [[Skaro]]: Among the names for the Doctor recorded by the [[Testimony]], ([[TV]]: {{cs|Twice Upon a Time (TV story)}}) in reference to the [[Hand of Omega]]'s destruction of Skaro as planned by the [[Seventh Doctor]]. ([[TV]]: {{cs|Remembrance of the Daleks (TV story)}})
* [[President-elect of the High Council of Time Lords|President Elect of the High Council of Time Lords]]: A title used by the Doctor to identify himself when addressing the Daleks. ([[TV]]: [[Remembrance of the Daleks (TV story)|Remembrance of the Daleks]])
* Keeper of the Legacy of [[Rassilon]] ([[TV]]: [[Remembrance of the Daleks (TV story)|Remembrance of the Daleks]])
* Defender of the [[Laws of Time]] ([[TV]]: [[Remembrance of the Daleks (TV story)|Remembrance of the Daleks]])
* Protector of [[Gallifrey]] ([[TV]]: [[Remembrance of the Daleks (TV story)|Remembrance of the Daleks]])
* The [[Evil Renegade]]: The name known to former [[companion]]s brainwashed by the [[Great House]]s. ([[PROSE]]: {{cs|Dead Romance (novel)}}, {{cs|Judy's War (short story)}})
* Mister Seven: The name used by [[Septimus]] and his fellow [[Cwejen]] for their memories of the Doctor as a "pale god". ([[AUDIO]]: {{cs|The Adventure of the Diogenes Damsel (audio story)}})
 
== [[Eighth Doctor]] ==
=== Known uses of John Smith ===
* In a timeline where the [[Nazi]]s won [[World War II]], an [[Johann Schmidt|alternative version of the Eighth Doctor]] also used the German variation. ([[AUDIO]]: {{cs|Colditz (audio story)}}, {{cs|Klein's Story (audio story)}})
* He used the German variation "Johann Schmidt" while posing as a German spy. ([[AUDIO]]: {{cs|Storm Warning (audio story)}})
* He once called himself "Professor Smith". ([[PROSE]]: {{cs|The Heroine, the Hero and the Megalomaniac (short story)}})
* "[[Jsmith8]]" was the [[Eighth Doctor]]'s username online. ([[PROSE]]: {{cs|Lonely (short story)}})
* He called himself "Superintendent Smith" in [[1963]] to find out more about [[Albert Kennedy]]'s death. ([[AUDIO]]: {{cs|The Red Lady (audio story)}})
* He introduced himself to [[Dal (Echoes of War)|Dal]], an amnesic Dalek, as "John Smith", in order to prevent Dal's true memories being triggered by reference to his true identity. ([[AUDIO]]: {{cs|Echoes of War (audio story)}})
 
=== Other aliases ===
* John Doe: In a continuation of the circumstances described above for the [[Seventh Doctor]], the Eighth Doctor was referred to by this name after his escape from the morgue was discovered. ([[TV]]: {{cs|Doctor Who (TV story)}})
* Dr. James Alistair Bowman: Dr [[Grace Holloway]] came up with the name "Dr. Bowman" for the [[Eighth Doctor]] whilst introducing him to others at the New Year's Eve party. ([[TV]]: {{cs|Doctor Who (TV story)}}) The Doctor subsequently used the "Dr. Bowman" alias on occasion, filling it out to "James Alistair Bowman", ([[PROSE]]: {{cs|Seeing I (novel)}}, {{cs|Unnatural History (novel)}}, {{cs|Frontier Worlds (novel)}}) such as when at [[The Doctor's trial (The Juror's Story)|the First Doctor's trial]] for the killing of a [[werewolf]]. ([[PROSE]]: {{cs|The Juror's Story (short story)}})
* Dr. Beech: According to one account, Grace came up with the name "Dr. Beech" for the Doctor whilst introducing him to others at the New Year's Eve party. ([[PROSE]]: {{cs|The Novel of the Film (novelisation)}})
* Merlin: The Doctor took up the alias to deliver King Arthur in another reality. ([[PROSE]]: {{cs|One Fateful Knight (short story)}}) Later, whilst stuck in the otherworld of [[Avalon (The Shadows of Avalon)|Avalon]], the Doctor attempted to pass himself off as Merlin to [[Queen Mab]]. ([[PROSE]]: {{cs|The Shadows of Avalon (novel)}})
* Doctor Doctor: Inadvertently introduced as such when talking to Doctor [[Charles Roley]] and his staff; [[Sam Jones]] dismissed it as an amusing irony, with the Doctor explaining that this was why he preferred to just be known as "Doctor". ([[PROSE]]: {{cs|The Taint (novel)}})
* Dr Jack-of-the-Moon: This was a term meaning those who concentrated on high-minded things at the expense of the normal world. It was used to refer to the Doctor (for example, on his marriage invitation) during his time on [[Henrietta Street]]. ([[PROSE]]: {{cs|The Adventuress of Henrietta Street (novel)}})
* Perdix: While in Rhadamanthys' court. ([[PROSE]]: {{cs|Fallen Gods (novel)}})
* Blessed Destroyer: [[Erasmus (Timeless)|Erasmus]] told [[Chloe (Timeless)|Chloe]] that [[the Homeworld|their world]] had been destroyed by the Blessed Destroyer. ([[PROSE]]: {{cs|Timeless (novel)}})
* Gracie Witherspoon: To defeat the [[Threshold]], the Doctor used a personal [[chameleon circuit]] to take the appearance of a female Threshold agent while [[Shayde]] masqueraded as the Doctor. ([[COMIC]]: {{cs|Wormwood (comic story)}})
* Dr Frankenstein: When meeting [[Mary Shelley]] and the other inhabitants of [[Villa Diodati]] in [[Switzerland]], the half-delirious Doctor introduced himself this way. ([[AUDIO]]: {{cs|Mary's Story (audio story)}})
* Ambrosius Clemenses: An alias used in [[305]], with Charley being "Dasia Dasia". ([[AUDIO]]: {{cs|Seasons of Fear (audio story)}})
* Reverend Doctor of Bruges: An alias used in [[1055]], with Charley being "Lady Charlotte". ([[AUDIO]]: {{cs|Seasons of Fear (audio story)}})
* Sir Doctor Peter Pollard: When he arrived at [[Sebastian Grayle]]'s 19th-century manor house, with Charlotte Pollard pretending to be his daughter. ([[AUDIO]]: {{cs|Seasons of Fear (audio story)}})
* Bert Higgins: While on [[Nixyce VII]]. ([[AUDIO]]: {{cs|The Traitor (audio story)}}, {{cs|Eyes of the Master (audio story)}})
* Dr Foster: To hide his identity from [[Nyssa]], he introduced himself as Dr Foster from the planet Gloucester, famous for its rains and huge puddles. ([[AUDIO]]: {{cs|A Heart on Both Sides (audio story)}})
* Captain Jonah: While serving as captain on the ''[[Bloodhound (submarine)|Bloodhound]]'' during the [[Last Great Time War|Time War]]. ([[AUDIO]]: {{cs|Jonah (audio story)}})
* Mr Seta ([[AUDIO]]: {{cs|The Edge of Redemption (audio story)}})
 
=== Impersonations ===
* Dr [[Kepesk]] ([[PROSE]]: {{cs|Kursaal (novel)}})
* Dr [[Friedlander]]: While visiting [[Banquo Manor]], he assumed the name of a real Doctor Friedlander who hadn't arrived at the Manor in order to avoid having to explain his presence. ([[PROSE]]: {{cs|The Banquo Legacy (novel)}})
* [[Klenton Dewfurth]] ([[PROSE]]: {{cs|Frontier Worlds (novel)}})
* Dr [[Domecq]]: When impersonating a representative of [[Earth Central]]. ([[PROSE]]: {{cs|Dark Progeny (novel)}})
* Doctor [[Jack Halliday]]: The Doctor was mistaken for the real [[Jack Halliday]] after finding his body and deciding to look in his office for clues about what happened to him. The original Halliday was not a doctor, but Charley referred to him as such and the Doctor claimed that he just didn't advertise the title to avoid giving people the wrong idea. ([[AUDIO]]: {{cs|Invaders from Mars (audio story)}})
* [[Edward Marlow]] ([[AUDIO]]: {{cs|Other Lives (audio story)}})
* [[The Clocksmith]]: To hide his identity from a [[The Nine|possible future incarnation]], the Doctor used a [[psychic wimple]] to pretend to be the Clocksmith. ([[AUDIO]]: {{cs|The Crucible of Souls (audio story)}})
* [[The Eleven]] ([[AUDIO]]: {{cs|Stop the Clock (audio story)}})
* [[Black Dalek (Paradox of the Daleks)|Black Dalek]] ([[AUDIO]]: {{cs|Paradox of the Daleks (audio story)}})
 
=== Nicknames ===
* Skipper: The Doctor's companion [[Samson Griffin]] always referred to him as such. ([[AUDIO]]: {{cs|Terror Firma (audio story)}})
* Lord Byron: A nickname given to the Eighth Doctor by [[Ace]]. ([[AUDIO]]: {{cs|The Light at the End (audio story)}})
* [[Tigger]] / [[Eeyore]]: When the Doctor is split into three, each bearing different parts of his personality, Charley Pollard gave these nicknames to the bouncy and excitable, and the surly and ruthless Doctors. ([[AUDIO]]: {{cs|Caerdroia (audio story)}})
* Specific Healer ([[PROSE]]: {{cs|Osskah (short story)}})
 
=== Titles and epitaphs ===
* The Eighth Man Bound: The Doctor referred to himself as this name, ([[PROSE]]: {{cs|The Dying Days (novel)}}) based on the fact that the Doctor was the only student to see a glimpse of his future right up to his eighth incarnation in the [[Eighth Man Bound]] game. ([[PROSE]]: {{cs|Lungbarrow (novel)}}, {{cs|Christmas on a Rational Planet (novel)}})
* [[Life's Champion]] ([[PROSE]]: {{cs|Vampire Science (novel)}})
* Doctor Know-All ([[PROSE]]: {{cs|Grimm Reality (novel)}})
* Evergreen Man: The name given to him by the [[Sidhe (Autumn Mist)|Sidhe]]. ([[PROSE]]: {{cs|Autumn Mist (novel)}})
* The Professional ([[PROSE]]: {{cs|Fear Itself (novel)}})
 
== [[War Doctor]] ==
=== Known uses of John Smith ===
* The [[War Doctor]] used the name John Smith to introduce himself to [[Garv]] on [[Keska]]. ([[AUDIO]]: {{cs|The Thousand Worlds (audio story)}})
* He also used the name when introducing himself to [[Coyne]], as he did not wish for his Time Lord heritage to be discovered. ([[PROSE]]: {{cs|Engines of War (novel)}})
 
=== Other aliases ===
* [[Prisoner 101]]: A designation given to him by [[Lord Cardinal|Cardinal]] [[War Ollistra|Ollistra]] when she arrested him as a war criminal. ([[AUDIO]]: {{cs|Legion of the Lost (audio story)}})
* Stowaway: [[Rosata Laxter]] called him this repeatedly after discovering the Doctor on her ship, when she heard others refer to him by his former title, he insisted she continued calling him "Stowaway". ([[AUDIO]]: {{cs|The Lady of Obsidian (audio story)}})
 
=== Nicknames ===
* Greybeard: A descriptive name given to him by [[Kalan]] due to his [[Silver (colour)|silver]] [[beard]]. ([[AUDIO]]: {{cs|The Eternity Cage (audio story)}})
* The Mad Fool: A nickname given by the [[Eleventh General]], since the War Doctor was working against the Time Lords' plans and seemingly ensuring their destruction. ([[TV]]: {{cs|The Day of the Doctor (TV story)}})
* Grandad: A nickname given by the Eleventh Doctor due to the War Doctor's aged appearance. ([[TV]]: {{cs|The Day of the Doctor (TV story)}})
* Captain Grumpy: A nickname given by the Eleventh Doctor due to the War Doctor's serious personality. ([[TV]]: {{cs|The Time of the Doctor (TV story)}})
 
=== Titles and epitaphs ===
* The Warrior: The moniker the Doctor chose to take in the [[Fifth Segment]] of the Time War upon his [[Eighth Doctor's regeneration|eighth regeneration]], ([[PROSE]]: {{cs|The Stranger (short story)}}) and his rejection of his "Doctor" title. ([[TV]]: {{cs|The Night of the Doctor (TV story)}}) By the time he went back to the [[First Segment]] of the war, he had stopped calling himself a warrior as well. ([[PROSE]]: {{cs|The Stranger (short story)}}) [[Clara Oswald]] later referred to him as "the Warrior" to differ himself from the Tenth and Eleventh Doctors. ([[TV]]: {{cs|The Day of the Doctor (TV story)}}) The [[Twelfth Doctor]] remembered him by this name. ([[PROSE]]: {{cs|The Complete History of the Doctor (short story)|page=9}})
* The Lord of Death: One of the [[Volatix Cabal]] identified the Doctor as such during the Time War. ([[COMIC]]: {{cs|The Organ Grinder (comic story)}})
* The Predator of the Daleks: A descriptive term for the Doctor used by the Daleks, ([[TV]]: {{cs|Asylum of the Daleks (TV story)}}) that originated during his war incarnation. ([[PROSE]]: {{cs|Engines of War (novel)}}, {{cs|Decoy (short story)}})
* The Deathbringer: A title bestowed upon the Doctor by the Daleks during the Time War. ([[PROSE]]: {{cs|Decoy (short story)}})
* The One Without Mercy: A title bestowed upon the Doctor by the Daleks during the Time War. ([[PROSE]]: {{cs|Decoy (short story)}})
* Dalek Killer: One of the names awarded to the War Doctor by the Daleks. ([[PROSE]]: {{cs|Engines of War (novel)}})
* The Great Scourge: One of the names awarded to the War Doctor by the Daleks. ([[PROSE]]: {{cs|Engines of War (novel)}})
* The Living Death: One of the names awarded to the War Doctor by the Daleks. ([[PROSE]]: {{cs|Engines of War (novel)}})
* The Executioner: One of the names awarded to the War Doctor by the Daleks. ([[PROSE]]: {{cs|Engines of War (novel)}})
* The Renegade: A name the [[Time Lord]]s used to refer to the War Doctor as he planned to use [[the Moment]] to end the [[Last Great Time War]]. ([[COMIC]]: {{cs|Sky Jacks (comic story)}})
* The Doctor of War: A name that arose as part of a saying used to describe him during the Time War that was recorded by the Testimony and used by [[Gastron]]. ([[TV]]: {{cs|Hell Bent (TV story)}}, {{cs|Twice Upon a Time (TV story)}})
* The Butcher of [[Skull Moon]]: Among the names for the Doctor recorded by the [[Testimony]], ([[TV]]: {{cs|Twice Upon a Time (TV story)}}) in reference a battlefield attended by the [[War Doctor]] during the [[Last Great Time War]]. ([[TV]]: {{cs|Hell Bent (TV story)}})
 
== [[Ninth Doctor]] ==
=== Known uses of John Smith ===
* The name Doctor as "Dr John Smith" on a piece of [[psychic paper]] during the [[Ninth Doctor]]'s visit to [[1941]]. ([[TV]]: {{cs|The Empty Child (TV story)}})
* While imprisoned at Hesguard Institute, the Doctor wore a jumpsuit identifying him as "J. Smith". ([[COMIC]]: {{cs|Sin-Eaters (comic story)}})
 
=== Other aliases ===
* Brigadier Bambera: Used when visiting the [[Christmas truce]] of [[World War I]]. ([[COMIC]]: {{cs|The Forgotten (comic story)}})
* The Traveller: Used to prevent a paradox when talking to the [[Space Lord]]s. ([[COMIC]]: {{cs|Monstrous Beauty (comic story)}})
* [[Professor]] Arthur van Dango: Used while working on an [[archaeology|archaeological]] dig with [[Bernice Summerfield]], to avoid catching up with her. He chose the name because "John Smith" would be too obvious. ([[AUDIO]]: {{cs|Ancient History (audio story)}})
* [[Spock|Mr. Spock]]: [[Rose Tyler]], annoyed with the Doctor not telling her his name, introduced him to [[Jack Harkness|Captain Jack]] as Mr Spock. ([[TV]]: {{cs|The Empty Child (TV story)}})
* Doctor Table: Used while trying to get a Neanderthal out of a hospital, claiming to be an expert in a rare disease that the man was suffering from. ([[PROSE]]: {{cs|Only Human (novel)}})
* Patient 280: His given alias during his imprisonment at [[Hesguard Institute]]. ([[COMIC]]: {{cs|Sin-Eaters (comic story)}})
* Hal Gryden: While on the planet [[Arkannis Major]], the Doctor adopted the name of this fictional newscaster to broadcast a message of peace to the people of the world. ([[PROSE]]: {{cs|The Stealers of Dreams (novel)}})
* Inspector George Dixon: Used when helping the police department on [[23rd century]] [[New Vegas]] with their investigation into the Whisper. ([[AUDIO]]: {{cs|Night of the Whisper (audio story)}})
* El Daktar: a name the Doctor was known by in [[3rd Dynasty]] [[Egypt]]. ([[PROSE]]: {{cs|Have You Seen This Man? (short story)}})
* Jamie Sullivan: While investigating the poisoning of [[Sita (The Butler Did It)|Sita]], the Doctor used this name to conceal his identity as a companion of "the [[Myra (The Butler Did It)|Doctor]]". He described himself under this identity as, "not very bright, but I have a heart of gold". He presumably made the name from [[Jamie McCrimmon]] and [[Harry Sullivan]]. ([[AUDIO]]: {{cs|The Butler Did It (audio story)}})
 
=== Nicknames ===
* The Navvie: [[Honoré Lechasseur]]'s nickname for the Doctor, due to his leather jacket. ([[PROSE]]: {{cs|The Albino's Dancer (novel)}})
* [[U-boat]] Captain: A snide nickname given by [[Captain Jack Harkness|Captain Jack]], who mocked the Ninth Doctor's double-breasted [[peacoat]] of [[black]] [[leather]] which made him look like a [[Nazi]] officer. ([[TV]]: {{cs|The Empty Child (TV story)}})
* Larry: Called this by [[Jackie Tyler]] after being ordered to close the TARDIS doors. ([[COMIC]]: {{cs|Supremacy of the Cybermen (comic story)}})
* Muggins: Jackie Tyler uses this name to refer to the Doctor after the TARDIS central console exploded. ([[COMIC]]: {{cs|Supremacy of the Cybermen (comic story)}})
* Big Ears: [[Mickey Smith]] describes the Ninth Doctor in this way, causing the latter to believe Mickey was saying he wasn't handsome. ([[TV]]: {{cs|Boom Town (TV story)}})
* Me with the ears: The Tenth Doctor called him this to address him directly. ([[COMIC]]: {{cs|The Lost Dimension (comic story)}})
* Marley's Ghost: In reference to Jacob Marley of ''[[A Christmas Carol]]'', his Matrix projection is called this by the [[Tenth Doctor]] when he makes a comment about the latter's changing after the Time War. ([[COMIC]]: {{cs|The Forgotten (comic story)}})
* Big Nose: The Tenth Doctor refers to this incarnation as such when questioning the Alternate Twelfth Doctor about his whereabouts. ([[COMIC]]: {{cs|Four Doctors (comic story)}})
* God of Outer Mystery: Called as such by [[Mickey Smith]] on the [[Who is Doctor Who?]] website. ([[PROSE]]: {{cs|Hoax This! (short story)}})
 
=== Titles and epitaphs ===
* The Final Judgement: Title used by Addison Delamar when auctioning off the Doctor's memories. ([[COMIC]]: {{cs|The Bidding War (comic story)}})
* The Prophet: Called so by Father Heretika, a representative of the Church of the Evergreen Man, a race who believed the Doctor to be a messiah. ([[COMIC]]: {{cs|The Bidding War (comic story)}})
* The Coward: The name given by the [[Metaltron]] [[Bronze Dalek|Dalek]]. ([[TV]]: {{cs|Dalek (TV story)}})
* The Great Exterminator: The name given to the Doctor by the [[Dalek Emperor in the Last Great Time War|Dalek Emperor]] whilst preparing a Delta Wave. ([[TV]]: {{cs|The Parting of the Ways (TV story)}})
* The Great Destroyer: Another name given to the Doctor by the Dalek Emperor, whilst taunting the Doctor to use his Delta Wave. ([[TV]]: {{cs|The Parting of the Ways (TV story)}})
* The [[Heathen]]: Another name given to the Doctor by the Dalek Emperor. ([[TV]]: {{cs|The Parting of the Ways (TV story)}})
 
== [[Tenth Doctor]] ==
=== Known uses of John Smith ===
* The [[Tenth Doctor]] used the name while working undercover as a science teacher at [[Deffry Vale High School]]. ([[TV]]: {{cs|School Reunion (TV story)}})
* He also used it while posing as a patient at [[Royal Hope Hospital]] ([[TV]]: {{cs|Smith and Jones (TV story)}})
* While temporarily human in 20th Century England, he used the name John Smith, believing it to be his ''actual'' name. ([[TV]]: {{cs|Human Nature (TV story)}} / {{cs|The Family of Blood (TV story)}})
* He used the name "Dr. John Smith, opto-mechanical technician for the Imperial College [of] London" to gain access to the [[Griffith Observatory]]. ([[COMIC]]: {{cs|Quiet on the Set (comic story)}})
* The Tenth Doctor told [[Conrad Morris|Professor Conrad Morris]] that his name was John Smith in [[2088]]. ([[PROSE]]: {{cs|Breathing Space (short story)}})
* The Tenth Doctor used the name while impersonating a health and safety officer during an investigation of [[Adipose Industries]]. ([[TV]]: {{cs|Partners in Crime (TV story)}})
* While at Eddison Manor after the murder of [[Gerald Peach|Professor Gerald Peach]], the Tenth Doctor claimed to be Chief Inspector Smith of Scotland Yard in order to keep the police out of what he suspected to be an alien crime. ([[TV]]: {{cs|The Unicorn and the Wasp (TV story)}})
* The Tenth Doctor attempted to use the alias aboard the ''[[Crusader 50]]'' bus on the planet [[Midnight (planet)|Midnight]] when asked for his name, but it was recognised as a false name and rejected by the panicking humans aboard. ([[TV]]: {{cs|Midnight (TV story)}})
* He used it when reintroducing himself to [[Donna Noble]] after he erased her memories of him. ([[TV]]: {{cs|Journey's End (TV story)}})
* He used it when encountering [[Jackson Lake]], a man who, due to [[Infostamp]] exposure, believed himself to be an incarnation of the Doctor. ([[TV]]: {{cs|The Next Doctor (TV story)}})
* The Tenth Doctor introduced himself as John Smith to [[Cleopatra Hunsicker|Cleo]]. ([[COMIC]]: {{cs|The Fountains of Forever (comic story)}})
* He used the alias "Dr. John Smith" when he claimed to be replacing Dr. Bell from the [[Inspectorate]]. ([[COMIC]]: {{cs|The Lost Dimension (comic story)}})
* The Tenth Doctor used the alias while pretending to be a manager of the [[Brainy Crisps]] industry. ([[PROSE]]: {{cs|Code of the Krillitanes (novel)}})
 
=== Other aliases ===
* Fred ([[COMIC]]: {{cs|The Betrothal of Sontar (comic story)}})
* Doctor James Robert McCrimmon: The [[Tenth Doctor]] briefly called himself Dr James McCrimmon of [[Balamory]] while visiting [[Scotland]] in [[1879]]. Later, he dropped the alias and was knighted by [[Victoria|Queen Victoria]] as "Sir Doctor of TARDIS". ([[TV]]: {{cs|Tooth and Claw (TV story)}}) He again used the alias when writing a [[letter]] to [[Lassar|Mr. Finch]] recommending himself "Dr. John Smith" to teach at [[Deffry Vale High School]]. ([[PROSE]]: {{cs|The Time Lord Letters (novel)}})
* Doctor Jones ([[PROSE]]: {{cs|The Nightmare of Black Island (novel)}})
* Luigi Barver ([[AUDIO]]: {{cs|The Sword of the Chevalier (audio story)}})
* Doctor Vile: The Doctor briefly masqueraded as the [[space pirate]] Doctor Vile to stop a war between humans and intelligent insects. ([[TV]]: {{cs|The Infinite Quest (TV story)}})
* Doctor [[Donald Duck]] ([[PROSE]]: {{cs|Martha in the Mirror (novel)}})
* Baronet Jones of Nova Scotia ([[PROSE]]: {{cs|The Many Hands (novel)}})
* Passenger 57 ([[TV]]: {{cs|Voyage of the Damned (TV story)}})
* Spartacus: When visiting [[Pompeii]] in [[79]] A.D, the Doctor and Donna both called themselves 'Spartacus', which had been a minor joke. [[Lobus Caecilius]] mistook this as them being siblings. ([[TV]]: {{cs|The Fires of Pompeii (TV story)}})
* Dr Noble: The Doctor used this when investigating the Ood Industries claiming that he and Donna were from the ''Noble Corporation''. ([[TV]]: {{cs|Planet of the Ood (TV story)}})
* Dr McCoy: After a discussion with [[Donna Noble]], in which she compared the [[the Doctor's sonic screwdriver|sonic screwdriver]] to ''[[Star Trek]]''{{'}}s [[tricorder]], the Doctor used the alias Dr McCoy (after Dr [[Leonard McCoy|Leonard "Bones" McCoy]]) when dealing with a group of soldiers (Donna called herself Captain Kirk, after [[James T. Kirk]]). ([[AUDIO]]: {{cs|Pest Control (audio story)}})
* Chief Inspector Smith from Scotland Yard: Used when involved with the death of [[Professor]] [[Gerald Peach]]. ([[TV]]: {{cs|The Unicorn and the Wasp (TV story)}})
* Dr. Johannes Schmidt ([[PROSE]]: {{cs|Autonomy (novel)}})
* Prisoner 23/8/15 ([[COMIC]]: {{cs|The Crimson Hand (comic story)}})
* Doctor Venkman: In [[New Orleans]] during Jazz Age. ([[COMIC]]: {{cs|The Jazz Monster (comic story)}})
* Actors: When visiting [[Hollywood]] in the early [[20th century]], the Doctor adopted a number of Hollywood-related names whilst attending a party. Within the space of a few minutes, he called himself "[[Tom Cruise]]", "[[Michael Caine]]", "[[Pee-Wee Herman]]" and "[[Tom Hanks]]". ([[COMIC]]: {{cs|Silver Scream (comic story)}})
* Dr John Tyler: The Doctor used the name "Tyler" instead of "Smith" to avoid the [[Fourth Doctor]]'s suspicions. ([[AUDIO]]: {{cs|Out of Time (audio story)}})
 
=== Nicknames ===
* Fireplace Man ([[TV]]: {{cs|The Girl in the Fireplace (TV story)}})
* Martian Boy: [[Donna Noble]] once called the Doctor by this name, earning his protests that he was not from Mars. ([[TV]]: {{cs|The Runaway Bride (TV story)}})
* Easter Egg Man: ([[PROSE]]: {{cs|The Secret Lives of Monsters (novel)}}) The Doctor's message to [[Sally Sparrow (Blink)|Sally Sparrow]] about the [[Weeping Angel]]s ([[TV]]: {{cs|Blink (TV story)}}) was a mystery to the many others who watched the "easter egg" on the seventeen DVDs. As he was unidentified in the clip, those who watched it took to calling him the "Easter Egg Man." ([[PROSE]]: {{cs|The Secret Lives of Monsters (novel)}})
* Gramps: {{Simm|c}} once called the Doctor this name as a joke towards his old age. ([[TV]]: {{cs|Last of the Time Lords (TV story)}})
* Gandalf: {{Simm|c}} once called the Doctor this name as a joke. ([[TV]]: {{cs|Last of the Time Lords (TV story)}})
* Spaceman: [[Donna Noble]] often called the Doctor by this name and [[Christina de Souza]] also referred to the Tenth Doctor by this as well. ([[TV]]: {{cs|The Fires of Pompeii (TV story)}}, {{cs|Planet of the Dead (TV story)}})
* Mr Conditional Clause: A nickname given by a frustrated [[Luke Rattigan]] after the Doctor said "[[ATMOS]] system" as a clapback because "ATMOS" meant "Atmospheric Omission System" and the Doctor would, according to Luke, be saying "Atmospheric Omission System system". This was because Luke earlier had said to the thought of moving to other planets "if only that was possible" and the Doctor corrected him saying "if only that were possible", saying it was a "conditional clause". ([[TV]]: {{cs|The Sontaran Stratagem (TV story)}})
* Pretty Boy: Used by [[River Song]] the first time he meets her from his point of view. ([[TV]]: {{cs|Silence in the Library (TV story)}}, {{cs|Forest of the Dead (TV story)}})
* Baby Doctor: The Twelfth Doctor referred to this incarnation as such when fearing he would be "Scary Doctor". ([[COMIC]]: {{cs|Four Doctors (comic story)}})
* Doc-Dude: Referred to as such by [[Cindy Wu]] after the Doctor forbade her from calling him "Baby", "Buster" and "Dude". ([[COMIC]]: {{cs|Lady of the Blue Box (comic story)}})
* Bambi: The Twelfth Doctor called the Tenth this due to his large brown eyes. ([[COMIC]]: {{cs|Vortex Butterflies (comic story)}})
* [[Merlin]]: The [[Tenth Doctor]] claimed that he was called Merlin by [[King Arthur]]. ([[COMIC]]: {{cs|Fugitive (comic story)}})
* Matchstick Man: A nickname given to him by his [[Eleventh Doctor|successor]] upon noticing that he had been exceptionally thin. ([[TV]]: {{cs|The Day of the Doctor (TV story)}})
* Daddy's Suit: The War Doctor's nickname for the Tenth Doctor, due to his dress sense. ([[PROSE]]: {{cs|The Day of the Doctor (novelisation)}})
* Sandshoes: A mocking nickname given to him by the Eleventh Doctor in reference to his choice of [[shoes|footwear]]. ([[TV]]: {{cs|The Day of the Doctor (TV story)}})
* Dick van Dyke: Another mocking nickname given by the Eleventh Doctor, after the Tenth commented on the War Doctor's gravelly voice. ([[TV]]: {{cs|The Day of the Doctor (TV story)}})
 
=== Titles and epitaphs ===
* The Lonely God: The Doctor was referred to as "the Lonely God" in the legend of the [[Face of Boe]]'s final prophecy, ([[TV]]: {{cs|New Earth (TV story)}})
* Sir Doctor of TARDIS: After saving her from an assassination, the Doctor was knighted by [[Victoria|Queen Victoria]] as "Sir Doctor of TARDIS". ([[TV]]: {{cs|Tooth and Claw (TV story)}}) The Doctor later tried to use the title when he met [[William Shakespeare]]. ([[TV]]: {{cs|The Shakespeare Code (TV story)}})
* Earth's Champion ([[COMIC]]: {{cs|The Widow's Curse (comic story)}})
* The [[Practeel Chiff Cha]] ([[COMIC]]: {{cs|The Widow's Curse (comic story)}})
* The Dark Lord: [[Dalek Caan]] once referred to him as the Dark Lord in his prophecy. ([[TV]]: {{cs|The Stolen Earth (TV story)}})
* The Last Child of Gallifrey ([[TV]]: {{cs|Journey's End (TV story)}})
* The Maintenance Man of the Universe ([[TV]]: {{cs|The Waters of Mars (TV story)}})
* [[Time Lord Victorious]]: A title the Tenth Doctor briefly claimed after interfering with a [[fixed point in time]] and saving [[Adelaide Brooke]] from her death. He continued to use this title when he went to the [[Dark Times]] and fought the [[Kotturuh]]. ([[TV]]: {{cs|The Waters of Mars (TV story)}}; [[PROSE]]: {{cs|The Knight, The Fool and The Dead (novel)}}, {{cs|All Flesh is Grass (novel)}})
* Admiral-Doctor of the [[Victis Fleet]] ([[PROSE]]: {{cs|The Knight, The Fool and The Dead (novel)}}, {{cs|All Flesh is Grass (novel)}})
* The Bringer of Death to the [[Kotturuh|Bringers of Death]] ([[PROSE]]: {{cs|All Flesh is Grass (novel)}})
* The Hero: The word [[Clara Oswald]] used to best describe what kind of person the Tenth Doctor was trying to be like. ([[TV]]: {{cs|The Day of the Doctor (TV story)}})
* Number Ten: Used by the Eleventh Doctor when discussing his regeneration cycle with Clara Oswald. ([[TV]]: {{cs|The Time of the Doctor (TV story)}})
 
== [[Eleventh Doctor]] ==
=== Known uses of John Smith ===
* The Doctor called himself "Agent John Smith, AKA the Doctor, of Scotland Yard" while investigating in [[1896]] [[San Francisco]]. ([[COMIC]]: {{cs|The Steampunk Conundrum (comic story)}})
* The [[Eleventh Doctor]] took the place of a real Dr Schmidt when his [[psychic paper]] displayed the credentials of a visitor expected at the [[Lexington International Bank]]. ([[PROSE]]: {{cs|Borrowed Time (novel)}})
* He used it while posing as his [[Eleventh Doctor (Ganger)|Ganger counterpart]] as an independent name for himself. ([[TV]]: {{cs|The Almost People (TV story)}})
* The Doctor introduced himself as Dr Smith, and Clara as his wife, to [[Winifred Gillyflower|Mrs Gillyflower]] to try and infiltrate [[Sweetville]] in [[1893]]. ([[TV]]: {{cs|The Crimson Horror (TV story)}})
 
=== Other aliases ===
* Captain Troy Handsome of [[International Rescue]]: When introducing himself to a crashed time ship's avatar. ([[TV]]: {{cs|The Lodger (TV story)}})
* Commander [[James Bond|Bond]] of [[Naval Intelligence]]: An alias used by the Doctor when he encountered [[Gein]]. ([[COMIC]]: {{cs|Sub-species (comic story)}})
* Bob Moss ([[PROSE]]: {{cs|Horror of the Space Snakes (novel)}})
* [[Fred Astaire]]: An alias he used when asked to sign his name for a magic show audition. ([[PROSE]]: {{cs|Magic of the Angels (novel)}})
* Mr [[Lineker]] from the Fair Organisation Of Football Agency: An alias the Doctor's [[psychic paper]] created when he sought to enter [[Wembley Stadium]] for the [[1966]] [[1966 World Cup|World Cup]] [[1966 World Cup Final|Final]]. ([[PROSE]]: {{cs|Extra Time (novel)}})
* [[The Other]]: A title used by the Doctor to talk to a young [[Rassilon]], in reference to the third founder of Time Lord society (along with [[Omega]] and Rassilon) a person who may or may not be the Doctor themselves. ([[COMIC]]: {{cs|The Lost Dimension (comic story)}})
* Jean Valjean: Alias used by the Doctor to infiltrate [[Alcatraz]] as a prisoner. ([[COMIC]]: {{cs|Escape into Alcatraz (comic story)}})
* Roy Robins: Alias used while prolonging his death. ([[PROSE]]: {{cs|Who Isn't Who? (short story)}})
* The Caretaker: Alias used when [[Madge Arwell|Madge]], [[Lily Arwell|Lily]] and [[Cyril Arwell]] stayed with him in a dilapidated house in [[Dorset]]. ([[TV]]: {{cs|The Doctor, the Widow and the Wardrobe (TV story)}})
* Doctor Zhivago ([[COMIC]]: {{cs|The Broken Man (comic story)}})
* Ambassador Ottokar of [[Syldavia]] ([[COMIC]]: {{cs|The Broken Man (comic story)}})
* [[Sherlock Holmes]]: Used to gain entry to [[Walter Simeon|Dr Simeon]]'s [[Great Intelligence Institute|institute]]. [[Strax]] even called the Doctor this a few times just to annoy him. ([[TV]]: {{cs|The Snowmen (TV story)}})
* Mr Doctor: Under his assigned identity as an [[arbiter]], the Doctor believed "Doctor" was his [[surname]]. ([[AUDIO]]: {{cs|Didn't You Kill My Mother? (audio story)}})
* Proconsul: Alias used during his adventure at [[Hedgewick's World of Wonders]] to keep a punishment platoon from being hostile to him and his guests. ([[TV]]: {{cs|Nightmare in Silver (TV story)}})
* Elias: An alias the Doctor used when introducing himself to [[Ssardak]] on [[Trenzalore]]. ([[PROSE]]: {{cs|Let it Snow (short story)}})
* Lt. Addison: Used when posing as a police detective in 20th century [[Los Angeles]]. ([[COMIC]]: {{cs|Your Destiny Awaits (comic story)}})
 
=== Impersonations ===
* Doctor Schmidt: The name of an auditor from [[Zurich]] due to inspect the [[Lexington Bank|Lexington International Bank]] which the Doctor sought to enter. ([[PROSE]]: {{cs|Borrowed Time (novel)}})
* [[Alistair Gordon Lethbridge-Stewart|Colonel Lethbridge-Stewart]] ([[PROSE]]: {{cs|Shroud of Sorrow (novel)}})
 
=== Nicknames ===
* Mr. Moon: A descriptive name the Doctor gave himself after first examining his new face. ([[PROSE]]: {{cs|The Day of the Doctor (novelisation)}})
* Sweetie: Frequently used by [[River Song]] as a dual greeting and affectionate nickname. ([[TV]]: {{cs|The Time of Angels (TV story)}}, et al.)
* Space Gandalf: When questioned by Amy as to what kind of person he's like, the Doctor answered that he was like a "Space Gandalf". ([[TV]]: {{cs|Meanwhile in the TARDIS 2 (TV story)}})
* Mr Cool ([[TV]]: {{cs|Amy's Choice (TV story)}})
* Ancient Amateur: The Doctor described himself as such to [[Craig Owen]]. ([[TV]]: {{cs|The Lodger (TV story)}})
* Caesar: A Roman [[Auton]], under the influence of [[River Song]]'s [[hallucinogenic lipstick]], in 102 A.D., mistook the Doctor for Caesar. ([[TV]]: {{cs|The Pandorica Opens (TV story)}})
* My Love: A term of affection River Song used for the Doctor. ([[TV]]: {{cs|The Pandorica Opens (TV story)}})
* Bowtie me: The Tenth Doctor referred to this incarnation to his companions. ([[COMIC]]: {{cs|Four Doctors (comic story)}})
* Posh Doctor: The Twelfth Doctor referred to this incarnation as such when fearing he would be "Scary Doctor". ([[COMIC]]: {{cs|Four Doctors (comic story)}})
* Legs Eleven: Called this by the [[Twelfth Doctor]] when referring to this incarnation to [[Gabby Gonzalez]]. ([[COMIC]]: {{cs|Four Doctors (comic story)}})
* Laughing Boy: Referred to as this by the [[Ninth Doctor]], after the Eleventh Doctor was found trapped in a Type One TARDIS. ([[COMIC]]: {{cs|The Lost Dimension (comic story)}})
* Time Boy: Used by Mels, the second incarnation of [[River Song]], as she anticipated meeting the Doctor while growing up with her parents in [[Leadworth]]. ([[TV]]: {{cs|Let's Kill Hitler (TV story)}})
* Also Not Mum: Called this by [[Alfie Owens]] in [[2011]]. ([[TV]]: {{cs|Closing Time (TV story)}})
* The Chin: [[Oswin Oswald]] called the Eleventh Doctor this when encountering him on the Dalek asylum due to his prominent chin. ([[TV]]: {{cs|Asylum of the Daleks (TV story)}})
* Monster: [[Ada Gillyflower]] called the Doctor her "monster", after he had been rejected by [[Mr Sweet]]'s poison. She kept him alive because it was strange that he survived despite "rejection", and to have her own secret. ([[TV]]: {{cs|The Crimson Horror (TV story)}})
* Bow Tie: The War Doctor's nickname for the Eleventh Doctor, due to his dress sense. ([[PROSE]]: {{cs|The Day of the Doctor (novelisation)}})
* Chinny: The Tenth Doctor's nickname for the Eleventh Doctor, due to his prominent chin. ([[TV]]: {{cs|The Day of the Doctor (TV story)}})
* Doctor Boss ([[COMIC]]: {{cs|Pay the Piper (comic story)}})
 
=== Titles and epitaphs ===
* Raggedy Man: A name given to the [[Eleventh Doctor]] by [[Amelia Pond]], due to wearing the tattered remains of his [[Tenth Doctor|predecessor]]'s outfit. She told other people in [[Leadworth]] about the "Raggedy Doctor" and they referred to him in this way when they met him. ([[TV]]: {{cs|The Eleventh Hour (TV story)}}) Amy called him that just before she was permanently sent to the past by a [[Weeping Angel]]. ([[TV]]: {{cs|The Angels Take Manhattan (TV story)}}) As he was about to regenerate, the Doctor hallucinated Amy telling him affectionately "Raggedy Man, good night". ([[TV]]: {{cs|The Time of the Doctor (TV story)}})
* A Madman with a Box: A title Amy Pond bestows on him on their first encounter after fourteen years, which he later adopted. ([[TV]]: {{cs|The Eleventh Hour (TV story)}})
* The Rotmeister: When he is talking to [[Craig Owens]] about the suspiciously growing rot on his ceiling, he refers to himself as the "Rotmeister" since he was an expert in rot. ([[TV]]: {{cs|The Lodger (TV story)}})
* The Ghost of Christmas Past ([[TV]]: {{cs|A Christmas Carol (TV story)}})
* [[Chief Executive]]: Alias used by the Doctor under the influence of the [[Entity (The Friendly Place)|Entity]]. ([[COMIC]]: {{cs|The Rise and Fall (comic story)}}, {{cs|The Other Doctor (comic story)}})
* The King of Okay: A title he gave to himself when Amy was shocked to see him alive and well, having seen his older self be shot and killed at [[Lake Silencio]]. He immediately tossed the idea aside, saying it was a "rubbish title", giving Rory his own title instead. ([[TV]]: {{cs|The Impossible Astronaut (TV story)}})
* My Thief / My Beautiful Idiot: Names given to the Doctor by the spirit of his TARDIS during their brief time together when [[House (The Doctor's Wife)|House]] took over the empty shell. ([[TV]]: {{cs|The Doctor's Wife (TV story)}})
* The Anti-Squid: A title the Doctor put little thought into due to the lack of preparation time. Meaning of the title is that he is the Devil of the space squid religion. ([[PROSE]]: {{cs|Space Squid (comic story)}})
* The Mad Monk: Called this by the public in [[1207]] [[Cumbria]], although it was noted that he was "definitely not a [[Monk]]". ([[TV]]: {{cs|The Bells of Saint John (TV story)}})
* Clara's Boyfriend: Called this by [[Angie Maitland]] when she discovered Clara and the Doctor were time travellers ([[TV]]: {{cs|The Crimson Horror (TV story)}}) and called so by [[Artie Maitland]] upon leaving the TARDIS. ([[TV]]: {{cs|Nightmare in Silver (TV story)}}) He would later pose as Clara's Swedish boyfriend to her family. ([[TV]]: {{cs|The Time of the Doctor (TV story)}}) Shortly after regenerating, the [[Twelfth Doctor]] clarified that he was not Clara's boyfriend, though he added that "it wasn't [her] mistake". ([[TV]]: {{cs|Deep Breath (TV story)}})
* Number Eleven: Clara reminding him that he has not run out of regenerations. When the Doctor reminds her of "Captain Grumpy" (the War Doctor), she calls him "Number Twelve". ([[TV]]: {{cs|The Time of the Doctor (TV story)}})
* The Imp of the [[Pandorica]]: Among the names for the Doctor recorded by the [[Testimony]], ([[TV]]: {{cs|Twice Upon a Time (TV story)}}) in reference to the prison in which the [[Eleventh Doctor]] was sealed. ([[TV]]: {{cs|Twice Upon a Time (TV story)}})
* The Beast of [[Trenzalore]]: Among the names for the Doctor recorded by the [[Testimony]], ([[TV]]: {{cs|Twice Upon a Time (TV story)}}) in reference to the [[Siege of Trenzalore]] in which the Eleventh Doctor defended the town of [[Christmas (town)|Christmas]]. ([[TV]]: {{cs|The Time of the Doctor (TV story)}}) Also, a name used in reference to the Doctor by the [[Great Intelligence]], though only as "the Beast". ([[TV]]: {{cs|The Name of the Doctor (TV story)}})
* The Demon: [[Kovarian]] taught the assassins she raised to kill the Doctor to refer to him as the Demon. The sound of [[The Doctor's TARDIS|his TARDIS]] was also referred to as "the Demon's roar". ([[AUDIO]]: {{cs|The Furies (audio story)}})
 
== [[Twelfth Doctor]] ==
=== Known uses of John Smith ===
* The [[Twelfth Doctor]] introduced himself as Doctor John Smith to [[Michael Smith]]. ([[PROSE]]: {{cs|Silhouette (novel)}})
* The Twelfth Doctor used the alias when going undercover as a [[caretaker]] in [[Coal Hill School]]. ([[TV]]: {{cs|The Caretaker (TV story)}})
* He used the German variation "Johann Schmidt" to gain Field Marshall [[Erwin Rommel]]'s trust when he landed in the [[Sahara Desert]] during [[World War II]]. ([[COMIC]]: {{cs|The Instruments of War (comic story)}})
 
=== Other aliases ===
* [[Prisoner 428]]: His assumed title during his time in [[the Prison]]. ([[PROSE]]: {{cs|The Blood Cell (novel)}})
* The Architect: A title used to disguise his identity when arranging to rob the [[Bank of Karabraxos]]; until the heist was almost complete, he was unable to remember this thanks to the deliberate use of a [[memory worm]]. ([[TV]]: {{cs|Time Heist (TV story)}})
* Dr McGuiness: An alias he assumed while investigating "the Bell" experiment in 1944, but was quickly found out and mistaken for a German spy. ([[PROSE]]: {{cs|The Crawling Terror (novel)}})
* Skovox Artificer: Using a voice manipulator, the Doctor was able to convince a [[Skovox Blitzer]] that he was its superior and got it to deactivate itself. ([[TV]]: {{cs|The Caretaker (TV story)}})
* Doc Tardis: An alias given to him by [[Bernice Summerfield]]. ([[PROSE]]: {{cs|Big Bang Generation (novel)}})
* Doctor John Disco: At some point, the Doctor began referring to himself as Doctor Disco on answering machines. ([[TV]]: {{cs|The Zygon Invasion (TV story)}}) He later started introducing himself as Dr. John Disco. ([[TV]]: {{cs|The Zygon Inversion (TV story)}}, {{cs|Thin Ice (TV story)}})
* Funkenstein: The Doctor introduced himself as "Doctor Funkenstein" to [[Walsh (The Zygon Invasion)|Walsh]], ([[TV]]: {{cs|The Zygon Invasion (TV story)}}) and later as "Inspector Funkenstein [of] Rodent Squad" to [[Lloyd Collins]]. ([[COMIC]]: {{cs|The Pestilent Heart (comic story)}})
* Basil: The Doctor jokingly said this was his real name when questioning [[Petronella Osgood]] about what her given name was, and she began referring to him as such. ([[TV]]: {{cs|The Zygon Inversion (TV story)}})
* Patient 89: The Doctor's number while waiting at [[New Hippocrates]]. ([[COMIC]]: {{cs|The Day at the Doctors (comic story)}})
* Inspector Morse ([[COMIC]]: {{cs|The Pestilent Heart (comic story)}})
* Special Agent Dan Dangerous from Scotland Yard: The Doctor made up this name when he first introduced himself to [[Lucy Fletcher]]. ([[TV]]: {{cs|The Return of Doctor Mysterio (TV story)}})
* Circe: Used by the Doctor while trying to infiltrate Missy's women-only social media chatroom. ([[PROSE]]: {{cs|Girl Power! (short story)}})
* Doctor Robert Louis Stephenson of the [[Royal College of Physicians]]: Used while investigating the mysterious events surrounding the plague outbreak in [[Edinburgh]] in [[1645]]. ([[PROSE]]: {{cs|Plague City (novel)}})
* Doctor Destructo: Used by the Doctor on visiting [[Sunstrike]] on a mission from the [[Time Agency]] with [[Keira Sanstrom (Discordia)|Keira Sanstrom]], who was then forced to introduce herself as Keira Destructo, his [[niece]]. ([[AUDIO]]: {{cs|Sunstrike (audio story)}})
 
=== Impersonations ===
* [[Odin]]: After being captured by Vikings, the Doctor tried to pass himself off as Odin to gain his freedom, but was outdone when [[Odin (The Girl Who Died)|another Odin]] showed up. ([[TV]]: {{cs|The Girl Who Died (TV story)}})
* [[Alan Turing]] ([[COMIC]]: {{cs|The Phantom Piper (comic story)}})
 
=== Nicknames ===
* Boney Rascal: A nickname given to him by [[Robin Hood]], due to the Doctor's slim and aged appearance. ([[TV]]: {{cs|Robot of Sherwood (TV story)}})
* The Caretaker: Called as such by both staff and students of [[Coal Hill School]] during his brief reign as the school's caretaker. ([[TV]]: {{cs|The Caretaker (TV story)}})
* Outer Space Dad: Called so by [[Danny Pink|Danny]] after he learned about the Doctor's identity; at the time, he had mistaken the Doctor for Clara's father. ([[TV]]: {{cs|The Caretaker (TV story)}})
* Nosferatu: Called so by corrupt cops working for [[Scindia-Corp]], due to his aged appearance and the possibility of him being a vampiric creature that killed [[Tiger Maratha|Tiger]]. ([[COMIC]]: {{cs|The Swords of Kali (comic story)}})
* Spindly Stick-insect: Called so by [[Chandra Scindia]]. ([[COMIC]]: {{cs|The Swords of Kali (comic story)}})
* The Cat in the Hat: Referred to as such by [[Johnny Dragotta]]. ([[COMIC]]: {{cs|Gangland (comic story)}})
* Mr. Grumpy: Referred to as such by the [[Tenth Doctor]]. ([[COMIC]]: {{cs|Four Doctors (comic story)}})
* Herrdoctor ([[COMIC]]: {{cs|The Instruments of War (comic story)}})
* Skeleton Man: A name given to him by [[Shona McCullough]], who had mistaken him for a ghost when they first met. ([[TV]]: {{cs|Last Christmas (TV story)}})
* The Eyebrows: A nickname given to him by Missy to differentiate the twelfth incarnation from the other Doctors. ([[TV]]: {{cs|The Witch's Familiar (TV story)}})
* Ducks ([[COMIC]]: {{cs|Witch Hunt (comic story)}})
* Me with the eyebrows: The Tenth Doctor calls him this to address him directly. ([[COMIC]]: {{cs|The Lost Dimension (comic story)}})
* Granddad: Nickname given by the Tenth Doctor to reference his age. ([[COMIC]]: {{cs|The Lost Dimension (comic story)}})
 
=== Titles and epitaphs ===
* The Stranger: Dubbed as such in one of [[Alan-a-Dale]]'s ballads. ([[TV]]: {{cs|Robot of Sherwood (TV story)}})
* Mr President: Called this during by [[Kate Stewart]] and [[Missy]] due to the Doctor being made the [[president of Earth]] during the [[Cyberman]] invasion Missy orchestrated. ([[TV]]: {{cs|Death in Heaven (TV story)}})
* Magician: The Twelfth Doctor has been called or referred to as a magician several times. ([[TV]]: {{cs|Last Christmas (TV story)}}, {{cs|The Doctor's Meditation (TV story)}})
* Ancient One: Referred to as such by the [[Skink]]s. ([[COMIC]]: {{cs|Hyperballad (comic story)}})
* Sawbones: A codename used to reference the Doctor for {{Delgado}}. ([[COMIC]]: {{cs|Doorway to Hell (comic story)}})
* [[The Hybrid]] (with [[Clara Oswald]]): Though disputed, Clara and the Doctor appeared to come to the conclusion that together, they fulfilled the [[Time Lord]] [[prophecy]] of the Hybrid, "destined to stand in the ruins of [[Gallifrey]]" and "break a billion hearts to heal its own." ([[TV]]: {{cs|Hell Bent (TV story)}})
* The Great Destruction of the Universe: Called so by the [[Shadow Kin]]. ([[TV]]: {{cs|For Tonight We Might Die (TV story)}})
* Doctor Mysterio: A young [[Grant (The Return of Doctor Mysterio)|Grant]]'s name for the Doctor, if he were a [[comic book]] character, which the Doctor professed a liking to. Grant used the name again after he encountered the Doctor once more as an adult. ([[TV]]: {{cs|The Return of Doctor Mysterio (TV story)}})
 
== [[Thirteenth Doctor]] ==
=== Known uses of Jane Smith ===
* [[Sarah Jane Smith]]: Used in [[1961]] [[Hollywood]]. ([[PROSE]]: {{cs|Mission of the KaaDok (short story)}})
* Jane Smith: Used in [[1969]] [[London]] while meeting [[Martha Jones]]. ([[COMIC]]: {{cs|A Little Help from My Friends (comic story)}})
 
=== Other aliases ===
* The Masked Assassin ([[POEM]]: {{cs|The Death List (poem)}})
* Good Nurse: Name given to her on [[Lobos]] by [[Graham O'Brien]] to fit with the local religion. ([[PROSE]]: {{cs|The Good Doctor (novel)}})
* The Curator: Used while working at a [[museum]] in [[Venice]]. ([[PROSE]]: {{cs|The Liar, the Glitch and the War Zone (short story)}})
* [[Rose Tyler|Rose]]: Used in [[1900s]] [[Bern]]. ([[PROSE]]: {{cs|Einstein and the Doctor (short story)}})
* The Marvellous Apparating Lady: Used in [[1834]] [[London]] during an inventor's auction, though she first tried "The Marvellous Apparating Man" out of habit. ([[TV]]: {{cs|Spyfall (TV story)}})
 
=== Nicknames ===
* Doc: Used by her companion [[Graham O'Brien]]. ([[TV]]: {{cs|Rosa (TV story)}} et al.)
* Professor: Used by [[Ace]] upon meeting up with the Doctor again. ([[TV]]: {{cs|The Power of the Doctor (TV story)}})
 
=== Titles and epitaphs ===
* The [[Timeless Child]]: First spoken to the Doctor by the [[Remnant]]s, though not in direct reference to her, ([[TV]]: {{cs|The Ghost Monument (TV story)}}) this title referenced the Doctor's potential many incarnations that existed before the incarnation which she believed to be her first incarnation. ([[TV]]: {{cs|The Timeless Children (TV story)}})
 
== [[Fourteenth Doctor]] ==
=== Nicknames ===
* Skinny Man ([[TV]]: {{cs|The Star Beast (TV story)}})
* Skinny Minnie ([[TV]]: {{cs|The Star Beast (TV story)}})
* Brainbox ([[TV]]: {{cs|Wild Blue Yonder (TV story)}})
 
=== Titles and epitaphs ===
* Grand Master of the Knowledge ([[TV]]: {{cs|The Star Beast (TV story)}})
 
== [[Fifteenth Doctor]] ==
=== Nicknames ===
* The Dancing Man: upon seeing the Doctor a day after their encounter in [[club (The Church on Ruby Road)|a nightclub]], [[Ruby Sunday]] identified him as such in her mind. ([[PROSE]]: {{cs|The Church on Ruby Road (novelisation)|chaptnum=Nine|page=61}})
 
== Miscellaneous ==
=== Other aliases ===
* [[Ruth Clayton]]: A human identity assumed by [[Fugitive Doctor|a previously unknown incarnation of the Doctor]] while she was hiding out on [[Earth]], as a fugitive from [[Gallifrey]]. This version of the Doctor used the [[Chameleon Arch]] in [[Fugitive Doctor's TARDIS|her TARDIS]] to temporarily transform herself into a human named Ruth. ([[TV]]: {{cs|Fugitive of the Judoon (TV story)}})
* [[Brendan (Ascension of the Cybermen)|Brendan]]: The name of either an incarnation prior to the [[First Doctor]] or the name of a manifestation of the remains of the [[Timeless Child]]'s background in [[the Matrix]] on Gallifrey.
* Zachary: The Doctor's codename among the [[UNIT]] troops. ([[PROSE]]: {{cs|The Shadows of Avalon (novel)}})
* In [[Earth-33⅓]], the ''[[Gallifrey Gazette]]'' claimed that before the Doctor ran away from [[Gallifrey]], the [[First Doctor (Earth-33⅓)|First Doctor]] used the "pen name" of "Doctor Wat Who". ([[COMIC]]: {{cs|TARDIS Stolen! (short story)}})
* Also in Earth-33⅓, [[Batman (Doctor Who?)|One incarnation]] of the Doctor took on the [[superhero]] alias of "[[Batman]]". ([[COMIC]]: {{cs|Doctor Who? (DWM 138 comic story)|''Doctor Who?'' 128}})
 
=== Nicknames ===
* [[Damsel]]: A codename for the Doctor that [[River Song]] used on her missions, owing to the fact that he "needed rescuing a lot" of the time. ([[TV]]: {{cs|The Husbands of River Song (TV story)}})
 
=== Titles and epitaphs ===
* The Idiot Child: A name for the Doctor used by [[Ohila]]. ([[PROSE]]: {{cs|The Day of the Doctor (novelisation)}})
* [[High Earl of the Imperial House]]: The Doctor's title as a [[Draconian]] nobleman. ([[PROSE]]: {{cs|Catastrophea (novel)}})
* The Zonewalker ([[PROSE]]: {{cs|Crimson Dawn (short story)}})
* The Shadow-thief ([[PROSE]]: {{cs|Crimson Dawn (short story)}})
* The Trickster of Time ([[PROSE]]: {{cs|Crimson Dawn (short story)}})
* [[Belot'ssar]]: A title used by the Ice Warriors to refer to the Doctor. The name means "cold blue star" in reference to either the light on top of the TARDIS or the cold blue star he showed them to settle near after Mars became uninhabitable. The name was given to him by Lord Azylax. ([[PROSE]]: {{cs|The Silent Stars Go By (novel)}})
* The Vessel of The Final Darkness: Another title in reference to the Doctor by the [[Great Intelligence]]. ([[TV]]: {{cs|The Name of the Doctor (TV story)}})
* [[Bringer of Darkness]]: Used by the Tenth Doctor while facing a rabbit, which he thought was a [[Zygon]]. ([[TV]]: {{cs|The Day of the Doctor (TV story)}}) Captain van Volk referred to the Twelfth Doctor as "Doctor Bringer-of-Darkness", ([[COMIC]]: {{cs|The Fractures (comic story)}}) and the Twelfth Doctor later referred to himself with the epitah. ([[COMIC]]: {{cs|Invasion of the Mindmorphs (comic story)}})
* The Walker in Time ([[COMIC]]: {{cs|Pay the Piper (comic story)}})
* The Roaring Winds of Righteousness: A title coined by [[Petronella Osgood]], which the [[Twelfth Doctor]] critisised for being "a little too flatulent". ([[COMIC]]: {{cs|Robo Rampage (comic story)}})
* The Shadow of the Valeyard: Among the names for the Doctor recorded by the [[Testimony]]. ([[TV]]: {{cs|Twice Upon a Time (TV story)}})
* The Last [[Tree]] of [[Garsennon]]: Among the names for the Doctor recorded by the [[Testimony]]. ([[TV]]: {{cs|Twice Upon a Time (TV story)}})
* The Emperor: Used by a supposed [[The Emperor|dark future incarnation]] of the Doctor who claimed the role of Supreme Ruler of the Universe. ([[PROSE]]: {{cs|Father Time (novel)}} et al, [[COMIC]]: {{cs|Miranda (comic story)}})
* The Uniter of the Thirteen Worlds of the Hoomis Collective ([[COMIC]]: {{cs|Midnight Feast (comic story)}})
* The Smiter of the Frangian Simulacra ([[COMIC]]: {{cs|Midnight Feast (comic story)}})
* The Aathkeeper of Valnis ([[COMIC]]: {{cs|Midnight Feast (comic story)}})
* The Mighty Lord of TAR-DIS ([[COMIC]]: {{cs|Midnight Feast (comic story)}})
* Vanquisher and Sworn Enemy of the Sontarans ([[TV]]: {{cs|War of the Sontarans (TV story)}})
 
=== Other ===
* The [[Timeless Child]]: The original name given to the Doctor in their earliest known history due to their ability to [[regenerate]] indefinitely. ([[TV]]: {{cs|The Timeless Children (TV story)}})
* [[The Valeyard]]: A version of the Doctor created sometime between his twelfth and final incarnations. ([[TV]]: {{cs|The Ultimate Foe (TV story)}}, {{cs|The Name of the Doctor (TV story)}})
* The Curator: Used by an [[The Curator|implied future incarnation]] of the Doctor with a face resembling that of the Doctor's [[Fourth Doctor|fourth incarnation]] but older.
 
== Behind the scenes ==
=== The Doctor's name ===
{{section cleanup|Outdated, the name is used in [[The Trial of Doctor Who (short story)]] which clarifies its usage.}}
* The first edition of the behind-the-scenes book ''[[The Making of Doctor Who]]'', published in 1972, stated that the Doctor's name was "∂³∑x²". It was later spelt as "d³ᓬx²" in the "Who is the Doctor" prologue of [[Marvel Premiere]] #57 in 1980. This has never been confirmed in any ''Doctor Who'' narrative, but these letters do appear on the plinth in the [[Tomb of Rassilon]] in ''[[The Five Doctors (TV story)|The Five Doctors]]''. They are also seen on K9's [[regeneration unit]] in ''[[Regeneration (TV story)|Regeneration]]'' and on the cover of [[The Scientific Secrets of Doctor Who (anthology)|The Scientific Secrets of Doctor Who]].
** The same first edition explained the Doctor "is never cowardly" which was expanded in the second edition to "never cruel or cowardly" and that "he never gives in, and he never gives up." These phrases were later used in the TV series as the promise the Doctor made when choosing his name.
* [[Executive producer]] [[Steven Moffat]] jokingly said that no one can know the Doctor's name, except each successive showrunner. "We're commanded never to reveal what we have learned because then the show would have to be renamed ''Mildred''. Oh, bugger."<ref>{{cite web |url=http://www.nme.com/filmandtv/news/doctor-whos-real-name-is-mildred-claims-steven-mo/342048 |title=Doctor Who's real name is Mildred, claims Steven Moffat |date of source= |website name=NME |accessdate=12 April 2016 }}</ref>
* In an interview in [[DWM 490]], Steven Moffat proposed that [[Dr. Who (Dr. Who and the Daleks)|Dr. Who]] recklessly altering [[Time]] to change the outcome of the bank robbery at the end of ''[[Daleks' Invasion Earth 2150 A.D. (theatrical film)|Daleks' Invasion Earth 2150 A.D.]]'' caused him to accidentally [[Big Bang Two|restart the universe]], rewriting himself into a [[Time Lord]] and [[Elective Semantectomy|losing his family name]].
 
=== Invalid sources ===
* After giving up his name, the [[War Doctor]] tested several aliases, including "Mister Moody", which he dropped when it proved incapable of eliciting [[shock]] and [[awe]] on the battlefield. ([[PROSE]]: ''[[The Doctor of War (short story)|The Doctor of War]]'')
 
=== Ordinal or cardinal ===
The novelisation {{cs|The Five Doctors (novelisation)}} distinguishes the [[incarnations]] of [[the Doctor]] by their cardinal number ([[Doctor One]], [[Doctor Two]], [[Doctor Three]], [[Doctor Four]]).
 
In ''[[The ArcHive Tapes (audio anthology)|The ArcHive Tapes]]'', the narrator refers to the Doctor's incarnations as "Doctor (cardinal number)" rather than "the (ordinal number) Doctor".
 
== Footnotes ==
{{reflist}}
[[es:Aliases del Doctor]]
 
[[Category:Aliases of the Doctor| ]]
[[Category:Secrets]]

Latest revision as of 00:56, 28 October 2024

Ian Chesterton and Barbara Wright meet "Dr Foreman". (TV: "An Unearthly Child" [+]Part of An Unearthly Child, Loading...{"namedep":"An Unearthly Child (1)","1":"An Unearthly Child (TV story)"})

Throughout their travels in time and space, the Doctor took on and was called by a number of different aliases, titles and names. Some were fleeting, while others, like John Smith, were used by almost all of their incarnations, with some variations. The Doctor told very few people their original name, instead asking others to simply call them the Doctor. By many accounts, the Doctor considered this title to be their real name. (TV: The Name of the Doctor [+]Loading...["The Name of the Doctor (TV story)"] et al.) It was their chosen identity, and a promise to the universe. (TV: The Sound of Drums [+]Loading...["The Sound of Drums (TV story)"], The Beast Below [+]Loading...["The Beast Below (TV story)"], The Day of the Doctor [+]Loading...["The Day of the Doctor (TV story)"])

In other accounts, however, the Doctor's "true name" was the one which was hidden, a guarded secret the Doctor kept from almost everyone. (TV: The Girl in the Fireplace [+]Loading...["The Girl in the Fireplace (TV story)"], The Shakespeare Code [+]Loading...["The Shakespeare Code (TV story)"], The Fires of Pompeii [+]Loading...["The Fires of Pompeii (TV story)"], The Time of the Doctor [+]Loading...["The Time of the Doctor (TV story)"]) Most names the Doctor kept were a matter of convenience, and they were prone to take on whichever name would help them blend in best, or stand out more, depending on the situation. Some companions felt this was not the Doctor's strongest suit, however. (AUDIO: What Just Happened? [+]Loading...["What Just Happened? (audio story)"] et al.)

The Doctor's real name[[edit] | [edit source]]

Most accounts treated the Doctor's true name as a complete mystery. Bill Potts, his student, asserted that "nobody [knew] the Doctor's real name", although Missy claimed that she was an exception to this given that she "grew up with him". (TV: World Enough and Time [+]Loading...["World Enough and Time (TV story)"]) One account even implied that their given name was ceremoniously withdrawn and stricken by their Cousins as punishment for a disgrace the Doctor had brought upon their House. (PROSE: Lungbarrow [+]Loading...["Lungbarrow (novel)"]) By another account, it had "broke" into as many pieces as there were syllables it took to say, and he gifted a piece to some of those he met on his travels. (PROSE: Return of the Living Dad [+]Loading...["Return of the Living Dad (novel)"]) However, the Doctor's true name did appear in secret files created by the High Court of the Time Lords, containing a transcript of the Doctor's trial, where it was spelled as "∂³Σx²". (PROSE: The Trial of Doctor Who [+]Loading...["The Trial of Doctor Who (short story)"]) While wandering in the Doctor's TARDIS, Clara Oswald read a history of the Time War which apparently told her the Doctor's name, causing her to remark "So that's who." (TV: Journey to the Centre of the TARDIS [+]Loading...["Journey to the Centre of the TARDIS (TV story)"])

Even when put on trial by the Time Lords, they were only referred to as "the Doctor", (TV: The War Games [+]Loading...["The War Games (TV story)"]) although the Valeyard, a culmination of the Doctor's darker side who prosecuted the second trial, acknowledged that this was an alias. (TV: The Mysterious Planet [+]Loading...["The Mysterious Planet (TV story)"]) When the Fifth Doctor was officially inducted as Lord President, he declared that it was "out of the question" for him to be introduced by his true name, stating that he would accept being introduced as "Lord President Doctor". (AUDIO: Time in Office [+]Loading...["Time in Office (audio story)"]) Even those who had known them in childhood addressed them only as "the Doctor", such as the Master, (TV: Death in Heaven [+]Loading...["Death in Heaven (TV story)"]) and the Rani. (COMIC: Weapons of Past Destruction [+]Loading...["Weapons of Past Destruction (comic story)"])

According to one account, during their first incarnation, the Doctor adopted this name in dealing with human colonists on the planet Iwa at the same time that his granddaughter adopted the name "Susan". (PROSE: Frayed [+]Loading...["Frayed (novel)"]) Other accounts implied that the Doctor's title had been chosen as a Gallifreyan custom, (TV: The Sound of Drums [+]Loading...["The Sound of Drums (TV story)"]) and that he had been using it before he left Gallifrey. (TV: The Name of the Doctor [+]Loading...["The Name of the Doctor (TV story)"], World Enough and Time [+]Loading...["World Enough and Time (TV story)"])

The Doctor's real name has been said to be difficult to pronounce, for humans at least, (PROSE: Doctor Who and the Auton Invasion [+]Loading...["Doctor Who and the Auton Invasion (novelisation)"], AUDIO: Slipback [+]Loading...["Slipback (audio story)"]) and certainly for adults, (TV: Twice Upon a Time [+]Loading...["Twice Upon a Time (TV story)"]) possessing thirty eight syllables. (PROSE: SLEEPY [+]Loading...["SLEEPY (novel)"], Return of the Living Dad [+]Loading...["Return of the Living Dad (novel)"]) The First Doctor once told an interrogator he "wouldn't be able to pronounce the first syllable of [his name]." (PROSE: Salvation [+]Loading...["Salvation (novel)"]) His seventh incarnation likewise told one of his captors that he "doubt[ed] [they]'d be able to pronounce the name [he] was originally given." (PROSE: Illegal Alien [+]Loading...["Illegal Alien (novel)"]) When asked about the Doctor's name, Peri Brown once said that the Doctor had told her she would find it unpronounceable. (AUDIO: Slipback [+]Loading...["Slipback (audio story)"])

However, the First Minister of Chance once answered similarly when asked what his real name was, only to play it off as a joke and explain that "the Minister" was his real name, with this simply being how Time Lord names worked. (WC: Death Comes to Time [+]Loading...["Death Comes to Time (webcast)"]) The Fifteenth Doctor similarly suggested that all Time Lord names were titles, and that the original name he had discarded for "the Doctor" was already a "the" title; he prepared to tell it to Ruby Sunday as they stepped out of the TARDIS control room, getting at least as far as "the". (TV: Space Babies [+]Loading...["Space Babies (TV story)"])

Moments before his regeneration, the Twelfth Doctor stated his belief that "children [could] hear [his name]", but only when "their hearts [were] in the right place, and the stars [were] too", adding: "but nobody else… nobody else… ever", emphasising to his uncreated next self that she "mustn't ever tell anyone [her] name". (TV: Twice Upon a Time [+]Loading...["Twice Upon a Time (TV story)"])

The Doctor kept their true name hidden despite numerous "mind-probe" attempts and the effect of a truth field. (TV: The Girl in the Fireplace [+]Loading...["The Girl in the Fireplace (TV story)"], The Time of the Doctor [+]Loading...["The Time of the Doctor (TV story)"]) The Carrionite Lilith, unable to discover the Tenth Doctor's true name even with the "witchcraft" used by her kind, remarked that "there [was] no name," and that the Doctor was hiding it in despair. (TV: The Shakespeare Code [+]Loading...["The Shakespeare Code (TV story)"]) The psychically-gifted Evelina, who attempted to foretell the Doctor's future, remarked that his "true name" was "hidden" from her. (TV: The Fires of Pompeii [+]Loading...["The Fires of Pompeii (TV story)"])

By one account, in his youth, the Doctor had outright removed his name from time, all but he and the Master forgetting his birth name. (AUDIO: Blood of the Time Lords [+]Loading...["Blood of the Time Lords (audio story)"])

Significance[[edit] | [edit source]]

By one account, names held mystic importance in Time Lord society, meaning that all Time Lords kept their true names as closely-guarded secrets. In this sense, the Doctor's name was not any more or less significant than any other Time Lord's. (PROSE: Doctor Who and the Auton Invasion [+]Loading...["Doctor Who and the Auton Invasion (novelisation)"])

The Eleventh Doctor told Clara Oswald that his original name was not important since he specifically chose the title of "Doctor" to take its place, saying it was "like a promise [one made]." (TV: The Name of the Doctor [+]Loading...["The Name of the Doctor (TV story)"]) This promise was; "Never cruel or cowardly. Never give up, never give in." (TV: The Day of the Doctor [+]Loading...["The Day of the Doctor (TV story)"]) Even Clara considered "the Doctor" to be his true name and the only one that mattered. (TV: The Time of the Doctor [+]Loading...["The Time of the Doctor (TV story)"]) Despite their hatred of the War Doctor's actions, (TV: The Name of the Doctor [+]Loading...["The Name of the Doctor (TV story)"]) both the tenth and eleventh incarnations admitted "[he] was the Doctor more than [any of them]." (TV: The Day of the Doctor [+]Loading...["The Day of the Doctor (TV story)"]) When Clara was forced to take on his role for him, the Twelfth Doctor told her that "goodness has nothing to do with [being a Doctor]". (TV: Flatline [+]Loading...["Flatline (TV story)"])

The Doctor considered abandoning his name if he felt he had to do something highly immoral. (TV: The Beast Below [+]Loading...["The Beast Below (TV story)"], Face the Raven [+]Loading...["Face the Raven (TV story)"]) The War Doctor rejected the name to fight in the Time War, (TV: The Night of the Doctor [+]Loading...["The Night of the Doctor (TV story)"]) but proudly called himself the Doctor once he was given the chance to end the conflict without killing the Time Lords. (TV: The Day of the Doctor [+]Loading...["The Day of the Doctor (TV story)"]) During his final day, the Twelfth Doctor stated being "the Doctor" was being kind, even if it meant pulling a self-sacrifice to bring others a small amount of extra time to live. (TV: The Doctor Falls [+]Loading...["The Doctor Falls (TV story)"]) The Thirteenth Doctor said that a "bit of adrenaline, dash of outrage and a hint of panic" helped her to remember she was the Doctor. (TV: The Woman Who Fell to Earth [+]Loading...["The Woman Who Fell to Earth (TV story)"])

The Saxon Master knew of this and implied that the Doctor's title had been chosen because it meant "the man who makes people better", although he found the choice "sanctimonious" for someone who ended millions of lives and ruined many others. (TV: The Sound of Drums [+]Loading...["The Sound of Drums (TV story)"]) River Song was aware of this contradiction in the Doctor's behaviour: she said that the Doctor was the first to have this title and that the rest of the universe later adopted it, usually to mean "healer" or "wise man". However, she added that, in some parts of the universe, such as in the Gamma Forests, it eventually came to mean "mighty warrior". (TV: A Good Man Goes to War [+]Loading...["A Good Man Goes to War (TV story)"])

According to Dorium Maldovar, the Silence had a particular interest in the Doctor's name. He explained that if the Doctor lived long enough, "on the fields of Trenzalore, at the fall of the Eleventh, [when] no creature could speak falsely or fail to answer", a question that must never be answered would be asked: "Doctor Who?". The Silence wanted to stop the Doctor from revealing his true name. (TV: The Wedding of River Song [+]Loading...["The Wedding of River Song (TV story)"])

The Doctor was at a later time forced to go to Trenzalore to rescue his friends from the Great Intelligence, which sought to gain access to the Doctor's tomb. The tomb, which was a future version of his own dying TARDIS, would open only to the Doctor's real name. The Intelligence threatened to kill Clara Oswald and the Paternoster Gang if he did not speak his name and open the tomb; the situation was resolved when the data ghost of River Song was able to silently transmit his name to the TARDIS, thus opening the door for the Great Intelligence. (TV: The Name of the Doctor [+]Loading...["The Name of the Doctor (TV story)"])

The Doctor's real name became important during the Siege of Trenzalore, as it was the signal chosen by the Time Lords to come back to the universe, broadcasting the question "Doctor Who?" through a crack in reality, simultaneously broadcasting a Truth Field so that they could be sure that it was truly the Doctor responding to them. Despite this, when the Doctor was facing death, Clara told the Time Lords through the Crack that the only name of his that mattered was "the Doctor" and everything he stood for under that name, prompting them to give the Doctor a new regeneration cycle at the cost of closing the crack. (TV: The Time of the Doctor [+]Loading...["The Time of the Doctor (TV story)"])

After meeting his twelfth incarnation, the First Doctor was confronted by the mysterious Testimony Foundation, who claimed that the Doctor was the "Doctor of War". Although the First Doctor initially feared this interpretation of his future, after witnessing the Twelfth Doctor's efforts to save Captain Archibald Hamish Lethbridge-Stewart, he came to conclude that the "Doctor of War" was not a man who revelled in war, but a man who sought the moments of peace that existed amid open warfare, and who would always try to find another way to end war, and to find resolution, rather than resorting to bloodshed. (TV: Twice Upon a Time [+]Loading...["Twice Upon a Time (TV story)"])

Ubiquity of the title[[edit] | [edit source]]

The Doctor did possess at least one doctorate. (TV: The Moonbase [+]Loading...["The Moonbase (TV story)"], The Armageddon Factor [+]Loading...["The Armageddon Factor (TV story)"], The Mysterious Planet [+]Loading...["The Mysterious Planet (TV story)"]) They sometimes described themselves as a "doctor of many things" (TV: Four to Doomsday [+]Loading...["Four to Doomsday (TV story)"]) or of "everything", (TV: Spearhead from Space [+]Loading...["Spearhead from Space (TV story)"], Utopia [+]Loading...["Utopia (TV story)"]) as well as "a scientist, an engineer, builder of things". (TV: The Aztecs [+]Loading...["The Aztecs (TV story)"]) However, their knowledge was limited to anything prior to the Rassilon Era. (TV: Utopia [+]Loading...["Utopia (TV story)"]) The Eleventh Doctor claimed that one of his doctorates was in cheesemaking, (TV: The God Complex [+]Loading...["The God Complex (TV story)"]) but only the "stinky, blue kind". (PROSE: Shroud of Sorrow [+]Loading...["Shroud of Sorrow (novel)"])

On several occasions, the Doctor claimed they were not a medical doctor. (TV: "The Forest of Fear" [+]Part of An Unearthly Child, Loading...{"namedep":"The Forest of Fear (3)","1":"An Unearthly Child (TV story)"}, "Mighty Kublai Khan" [+]Part of Marco Polo, Loading...{"namedep":"Mighty Kublai Khan (6)","1":"Marco Polo (TV story)"}) Though by their second incarnation, he had studied medicine in the 19th century, (TV: The Moonbase [+]Loading...["The Moonbase (TV story)"]) although Clara recalled the Doctor telling her that he graduated in the wrong century. (TV: Death in Heaven [+]Loading...["Death in Heaven (TV story)"]) The Eleventh Doctor described himself as a medical doctor. (TV: The God Complex [+]Loading...["The God Complex (TV story)"]) The seventh, eleventh and twelfth incarnations displayed some medical knowledge, being able to help with minor injuries (TV: Remembrance of the Daleks [+]Loading...["Remembrance of the Daleks (TV story)"], The Vampires of Venice [+]Loading...["The Vampires of Venice (TV story)"]) and tell if a person was vitamin deficient. (TV: Thin Ice [+]Loading...["Thin Ice (TV story)"]) The Ninth Doctor could also diagnose patients in a hospital ward, quickly deducing they all shared the injuries of a scar on the back of their hands, collapsed chest cavities, crushed rib cages and gas masks fused into the flesh on their faces, (TV: The Empty Child [+]Loading...["The Empty Child (TV story)"]) and displayed extensive knowledge on nanogenes, such as their ability to repair organic matter and restore life as a mere "quirk of matter". (TV: The Doctor Dances [+]Loading...["The Doctor Dances (TV story)"]) The Tenth Doctor in particular proved a proficient medic, performing life-saving surgery on Laszlo, sustaining him as a Human-Pig hybrid, able to live as long as a human again. (TV: Evolution of the Daleks [+]Loading...["Evolution of the Daleks (TV story)"])

When asked by Mabli if her doctorate was in medicine, the Thirteenth Doctor described herself as having a doctorate in "medicine, science, engineering, candyfloss, Lego, philosophy, music, problems, people, [and] hope." (TV: The Tsuranga Conundrum [+]Loading...["The Tsuranga Conundrum (TV story)"])

Individuals with knowledge of the Doctor's name[[edit] | [edit source]]

Susan Foreman knew the Doctor's real name, and wrote it on the wrappings of a hypercube she sent to him after she had settled down on Earth. (PROSE: Ghost of Christmas Past [+]Loading...["Ghost of Christmas Past (short story)"])

Ace knew his true name's signature, written using three runes but able to be condensed into one. (PROSE: Timewyrm: Revelation [+]Loading...["Timewyrm: Revelation (novel)"]) The Seventh Doctor, half-unconscious, once told two Caxtarids his name, which they remarked as being "hard getting [...] on the front of an envelope." (PROSE: Return of the Living Dad [+]Loading...["Return of the Living Dad (novel)"])

The Sixth Doctor told his dance instructor, Becky, his name. (PROSE: Teach Yourself Ballroom Dancing [+]Loading...["Teach Yourself Ballroom Dancing (short story)"])

The Eighth Doctor used his real name when he forged passes for himself and his companion, Sam Jones, on board the Cirrandaria in 3123. He used this name when speaking to a guard, Sam finding it quite alien and virtually unpronounceable. (PROSE: Vanderdeken's Children [+]Loading...["Vanderdeken's Children (novel)"])

When the Tenth Doctor first encountered her, River Song claimed to have known him at some point in his future, (TV: Silence in the Library [+]Loading...["Silence in the Library (TV story)"]) and, to prove her "credentials", she whispered his name in his ear, and apologised for having to do so. The Doctor was shocked at this, as "there [was] only one reason [he] would ever tell anyone [his] name, [and] only one time [he] could." (TV: Forest of the Dead [+]Loading...["Forest of the Dead (TV story)"]) River indicated to Clara Oswald that she "made" the Doctor tell her his name and that "it took a lot of effort". (TV: The Name of the Doctor [+]Loading...["The Name of the Doctor (TV story)"])

Near the end of his life, despite believing there was no one left in the universe who knew it, the Tenth Doctor encountered members of an unidentified pan-dimensional race that knew his real name. (AUDIO: The Last Voyage [+]Loading...["The Last Voyage (audio story)"])

While separated from the Eleventh Doctor, Clara Oswald read his name in The History of the Time War. Though that timeline was aborted, leaving her with no memory of it, (TV: Journey to the Centre of the TARDIS [+]Loading...["Journey to the Centre of the TARDIS (TV story)"]) she later began to recall certain moments of the timeline, (TV: The Name of the Doctor [+]Loading...["The Name of the Doctor (TV story)"]) and claimed to know the Doctor's name when bluffing to the Cybermen about being the Doctor. (TV: Death in Heaven [+]Loading...["Death in Heaven (TV story)"]) Additionally, she was able to hear and see River when she said the Doctor's name to open his tomb, but the circumstances of River's saying of the Doctor's name were unknown. (TV: The Name of the Doctor [+]Loading...["The Name of the Doctor (TV story)"])

Missy claimed to know the Doctor's real name from their time together on Gallifrey. She said it was "Doctor Who", and the Doctor had chosen it to be mysterious, but dropped the "Who" when he realised it was "too on-the-nose". The Twelfth Doctor said she was just teasing Bill Potts, but he refused to answer if it was truly his name. (TV: World Enough and Time [+]Loading...["World Enough and Time (TV story)"])

"Doctor Who"[[edit] | [edit source]]

The First Doctor, when asked who he is, responds that he is Who. (COMIC: Challenge of the Piper [+]Loading...["Challenge of the Piper (comic story)"])

The name "Doctor Who" was used by or applied to the Doctor on a large number of occasions, with accounts varying on whether this seemed to be the time-traveller's actual name — or at any rate a name they accepted and used for themselves — or simply a placeholder applied to them by others for lack of knowledge of his real names.

In a version of history "B" relative to the First Doctor's version of history "A", (PROSE: Dalek Survival Guide [+]Loading...["Dalek Survival Guide (novel)"]) an Earthling scientist who invented TARDIS and fought the Daleks identified himself as Dr. Who. (TV: Dr. Who and the Daleks [+]Loading...["Dr. Who and the Daleks (theatrical film)"], Daleks' Invasion Earth 2150 A.D. [+]Loading...["Daleks' Invasion Earth 2150 A.D. (theatrical film)"])

"Dr. Who" was the name by which the First and Second Doctors were known during their travels with their grandchildren, (COMIC: The Klepton Parasites [+]Loading...["The Klepton Parasites (comic story)"], The Extortioner [+]Loading...["The Extortioner (comic story)"]) John and Gillian Who. (COMIC: The Incomplete Death's Head [+]Loading...["The Incomplete Death's Head (comic story)"]) Accounts differed as to whether these adventures took place in reality (PROSE: Beware the Trods! [+]Loading...["Beware the Trods! (short story)"], The Man Who [+]Loading...["The Man Who (Nearly) Killed Christmas (short story)"]) and John and Gillian were truly the Doctor's grandchildren (COMIC: The Klepton Parasites [+]Loading...["The Klepton Parasites (comic story)"], et al.) or simulacra, (POEM: The Five O'Clock Shadow [+]Loading...["The Five O'Clock Shadow (poem)"]) or if they took place in the Land of Fiction (PROSE: Conundrum [+]Loading...["Conundrum (novel)"]) or the Doctor's dreams. (COMIC: The Land of Happy Endings [+]Loading...["The Land of Happy Endings (comic story)"])

The version of the Doctor in the Land of Fiction was known as Dr. Who. (PROSE: Prelude Conundrum [+]Loading...["Prelude Conundrum (short story)"], Conundrum [+]Loading...["Conundrum (novel)"], Head Games [+]Loading...["Head Games (novel)"]) While visiting the Land of Fiction, the Seventh Doctor encountered a "John" and "Gillian" who claimed he was their grandfather in whose company they had fought the Kleptons and the Trods. They tried to make him remember that his name was Dr. Who, to which he flatly replied with denial. When they pressed further and asked if he remembered them, he said that he didn't. (PROSE: Conundrum)

On television in the 1960s, fans referred to the Doctor as Dr. Who. (COMIC: TV Terrors [+]Loading...["TV Terrors (TVC 709 comic story)"])

The Third Doctor once stated that his real name was not "Doctor Who", but that others often called him that for lack of him divulging his actual true name. (TV: The Shrink [+]Loading...["The Shrink (TV story)"])

The Master addressed a postcard to the Third Doctor as "Dr Who". (COMIC: Fogbound [+]Loading...["Fogbound (comic story)"]) Missy later made two bold claims to Bill Potts in quick succession, first that "Doctor Who" was in fact the Doctor's real name, and second that it was, more specifically, an alias he had chosen himself early on, as an attempt to "sound mysterious". In this account, he would later drop the "Who" because it was "a tiny bit on-the-nose". The Twelfth Doctor told Bill she was just trying to wind her up, but he later identified himself as "Doctor Who" to Jorj, noting that he liked the name. (TV: World Enough and Time [+]Loading...["World Enough and Time (TV story)"]) According to one account, a conversation he had with Missy at an earlier point bore out Missy's claim, seeing him explain to her that the name arose from the question of "who to save", calling it "the Doctor's Who". (COMIC: The Road To... [+]Loading...["The Road To... (comic story)"])

On the occasion of the reading of Quences's will, when Quences insisted that one of the Cousins was missing, Glospin rhetorically asked the crowd: "Can't you guess who he means?", emphasising the word. This served to identify the First Doctor, the utterance of whose real name had recently been banned within the House to go along with him being disinherited. (PROSE: Lungbarrow [+]Loading...{"chaptnum":"7","1":"Lungbarrow (novel)"})

When the First Doctor was using the name "Doctor Caligari" and someone remarked, "Doctor who?" he replied, "Yes, quite right."; (TV: The Gunfighters [+]Loading...["The Gunfighters (TV story)"]) similarly, when Jimmy Forbes asked "Doctor who?", another incarnation of the Doctor replied "Yes, if you like.", (AUDIO: Seven Keys to Doomsday [+]Loading...["Seven Keys to Doomsday (audio story)"]) and when Citizen 327KL asked "Doctor who?", the Fourth Doctor simply said "yes". (TV: Dr. Who For Keep Australia Beautiful [+]Loading...["Dr. Who For Keep Australia Beautiful (TV story)"]) When a time-shifted Susan Foreman was confronted with the Sixth Doctor without recognising him, and asked "Who are you?", he replied "Precisely! I am the Doctor". (TV: Dimensions in Time [+]Loading...["Dimensions in Time (TV story)"]) The Fourth Doctor outright stated that his name was "Dr Who" when Richard the Lionheart asked for his name; King Richard later referred to him as simply "Who". (PROSE: Doctor Who Discovers The Conquerors [+]Loading...["Doctor Who Discovers The Conquerors (novel)"])

The TARDIS-Keeper on Gallifrey also knew the Doctor as "Who". (PROSE: Doctor Who and the Doomsday Weapon [+]Loading...["Doctor Who and the Doomsday Weapon (novelisation)"])

The computer WOTAN repeatedly referred to the First Doctor as "Doctor Who". (TV: The War Machines [+]Loading...["The War Machines (TV story)"]) Both Ian Chesterton and Vicki occasionally called the Doctor "Doctor Who", (PROSE: Doctor Who and the Zarbi [+]Loading...["Doctor Who and the Zarbi (novelisation)"]) as did Argon, (PROSE: Terror on Tiro [+]Loading...["Terror on Tiro (short story)"]) Mitzog, (PROSE: The Cloud Exiles [+]Loading...["The Cloud Exiles (short story)"]) and Phlege. (COMIC: Mission for Duh [+]Loading...["Mission for Duh (comic story)"]) The Doctor's grandson John (COMIC: The Klepton Parasites [+]Loading...["The Klepton Parasites (comic story)"]) used the last name "Who". (PROSE: Beware the Trods! [+]Loading...["Beware the Trods! (short story)"])

The First Doctor used the username "Dr who" when bidding on the TARDIS, which he lost to Buchanan in a bet, on RetroAuction.com in 2006. (PROSE: The Mother Road [+]Loading...["The Mother Road (short story)"])

The Second Doctor briefly used the name "Doktor von Wer" (literally, "Doctor [of] Who") during his visit to Scotland on 16 April 1746, (TV: The Highlanders [+]Loading...["The Highlanders (TV story)"]) and he once signed a message as "Dr W." (TV: The Underwater Menace [+]Loading...["The Underwater Menace (TV story)"]) The Zaons called him "Doctor Who". (PROSE: Daleks Invade Zaos [+]Loading...["Daleks Invade Zaos (short story)"]) Bessie's license plate during the Third Doctor's time at UNIT read WHO 1; (TV: Doctor Who and the Silurians [+]Loading...["Doctor Who and the Silurians (TV story)"]) in the Doctor's seventh incarnation it read WHO 7, (TV: Battlefield [+]Loading...["Battlefield (TV story)"]) and WHO 8 in his eighth incarnation. (PROSE: The Dying Days [+]Loading...["The Dying Days (novel)"]) Miss Hawthorne referred to the Third Doctor as "the great wizard Qui Quae Quod"; those three words all mean "who" in Latin. (TV: The Dæmons [+]Loading...["The Dæmons (TV story)"]) The aged Keeper of the Files referred to the Doctor with the name "Who". (PROSE: Doctor Who and the Doomsday Weapon [+]Loading...["Doctor Who and the Doomsday Weapon (novelisation)"]) The Curator referred to his nose as a "Who nose", (TV: The Day of the Doctor [+]Loading...["The Day of the Doctor (TV story)"]) and after discovering his formative role in Davros's early life, the Twelfth Doctor remarked that "Who made Davros." (TV: The Magician's Apprentice [+]Loading...["The Magician's Apprentice (TV story)"]) The Fourth Doctor wrote a series of children's books during his time with UNIT which were mistakenly published under the name "Doctor Who": they were intended to be "The Doctor, Who Discovers Historical Mysteries", but the publishers, due to a miscommunication, presented it as "Doctor Who Discovers Historical Mysteries". (AUDIO: The Kingmaker [+]Loading...["The Kingmaker (audio story)"]) A version of the Doctor in a young boy's imagination, based off a fictional depiction of the Doctor off television, claimed that she was "not allowed" to refer to herself as "Doctor Who", despite personally finding it "brilliant". (PROSE: The Terror of the Umpty Ums [+]Loading...["The Terror of the Umpty Ums (short story)"]) K9 occasionally made playful remarks related to the "Who" name. (TV: A Girl's Best Friend [+]Loading...["A Girl's Best Friend (TV story)"], Invasion of the Bane [+]Loading...["Invasion of the Bane (TV story)"]) Clive Finch's website called him "Doctor Who". (TV: Rose [+]Loading...["Rose (TV story)"]) Upon reading the Tenth Doctor's mind, Reinette remarked that "Doctor Who" was "more than just a secret". (TV: The Girl in the Fireplace [+]Loading...["The Girl in the Fireplace (TV story)"]) The oldest question in the universe was "Doctor Who?" (TV: The Wedding of River Song [+]Loading...["The Wedding of River Song (TV story)"])

Theta Sigma[[edit] | [edit source]]

Main article: Theta Sigma

The Doctor's old Academy schoolmate Drax knew the Doctor as "Theta Sigma", which he informally shortened to "Thete". The Fourth Doctor repeatedly corrected him when they met again centuries later, wanting to be called Doctor instead. (TV: The Armageddon Factor [+]Loading...["The Armageddon Factor (TV story)"])

Some accounts treated "Theta Sigma" as the Doctor's actual, proper name as far as Gallifrey was concerned; for example, a communication from Gallifrey Databank to Gallifrey High Command noted that K9 Mark I had been modified by "Time Lord Theta Sigma (also known as 'the Doctor')". (PROSE: K9 and the Time Trap [+]Loading...{"page":"1","1":"K9 and the Time Trap (novel)"}, K9 and the Beasts of Vega [+]Loading...{"page":"1","1":"K9 and the Beasts of Vega (novel)"}, K9 and the Zeta Rescue [+]Loading...{"page":"1","1":"K9 and the Zeta Rescue (novel)"}, K9 and the Missing Planet [+]Loading...{"page":"1","1":"K9 and the Missing Planet (novel)"}) In an alternate timeline in which Rassilon failed to finish the Eye of Harmony before his death, the Doctor never left Gallifrey and became a commentator rather than a renegade Time Lord. He was known as Commentator Theta Sigma. (AUDIO: Forever [+]Loading...["Forever (audio story)"])

"ΘΣ" was part of River Song's message to the Eleventh Doctor on the universe's oldest cliff-face. (TV: The Pandorica Opens [+]Loading...["The Pandorica Opens (TV story)"]) River Song claimed and demonstrated on numerous occasions that she knew the Doctor's secret real name. (TV: Forest of the Dead [+]Loading...["Forest of the Dead (TV story)"], The Name of the Doctor [+]Loading...["The Name of the Doctor (TV story)"], etc.)

However, the Seventh Doctor would later claim that "Theta Sigma" was his "nickname at college" to the coincidentally-named Trevor Sigma. (TV: The Happiness Patrol [+]Loading...["The Happiness Patrol (TV story)"]) The Ninth Doctor would later reiterate this in a duel with the Grimminy-Grew to guess the other's true name, saying that "old school nicknames don't count". (AUDIO: Station to Station [+]Loading...["Station to Station (audio story)"])

In one account, the Doctor considered it a "Time Lord coding", which he couldn't "bear [to be] addressed as". (PROSE: Doctor Who and the Armageddon Factor [+]Loading...["Doctor Who and the Armageddon Factor (novelisation)"]) It identified him uniquely amongst the Time Lords and was not to be spoken outside of the Academy. (PROSE: Falls the Shadow [+]Loading...["Falls the Shadow (novel)"]) According to the author of The Time Lord Letters, a historical document compiling writings by and concerning the Doctor, "Theta Sigma" was also their Academy Student Identification Code. (PROSE The Time Lord Letters [+]Loading...["The Time Lord Letters (novel)"])

When the Doctor's final incarnation permanently died during the first battle of the War in Heaven, his coffin had two Greek letters on it; one of these was "Sigma". (PROSE: Alien Bodies [+]Loading...["Alien Bodies (novel)"])

Commonly used aliases[[edit] | [edit source]]

John Smith[[edit] | [edit source]]

John Smith was an alias the Doctor frequently used on Earth and around humans when a "standard" name was needed, with the Eighth Doctor noting it was "the nom de guerre [he] seem[ed] to keep ending up with". (PROSE: Alien Bodies [+]Loading...["Alien Bodies (novel)"]) It was often preceded by the title "Doctor", though not always — for example, when he was undercover as a teacher at a school or a patient in a hospital. (TV: School Reunion [+]Loading...["School Reunion (TV story)"], Smith and Jones [+]Loading...["Smith and Jones (TV story)"]) As "John Smith" was considered a generic name in some Earth cultures, the Doctor's use of the alias was occasionally treated with scepticism. (TV: Midnight [+]Loading...["Midnight (TV story)"])

The First Doctor used a library card with the name Dr J. Smith while living at 76 Totter's Lane, (TV: The Vampires of Venice [+]Loading...["The Vampires of Venice (TV story)"]) as well as for identification when renting the junkyard. (PROSE: The Rag & Bone Man's Story [+]Loading...["The Rag & Bone Man's Story (short story)"]) The inspiration for the alias was John Smith of John Smith and the Common Men, with which he was familiar through Susan. (PROSE: The Witch Hunters [+]Loading...["The Witch Hunters (novel)"])

In their second incarnation, the name was independently used by his companion Jamie McCrimmon while the Doctor was being treated for a concussion, as he saw it being used as a brand name on a metal container. (TV: The Wheel in Space [+]Loading...["The Wheel in Space (TV story)"]) The Doctor himself used the alias when being interrogated by a German soldier. (TV: The War Games [+]Loading...["The War Games (TV story)"]) Likewise, Chang Lee chose to register the name for the Seventh Doctor while he was en route to get his bullet wounds healed. (TV: Doctor Who [+]Loading...["Doctor Who (TV story)"])

The Doctor adopted the name on a semi-regular basis during their third incarnation while exiled on Earth, when he served as unpaid scientific advisor to UNIT. (TV: Spearhead from Space [+]Loading...["Spearhead from Space (TV story)"], Inferno [+]Loading...["Inferno (TV story)"], The Time Warrior [+]Loading...["The Time Warrior (TV story)"]) The UNIT files referred to him as "Dr. J.S.". (AUDIO: Tales from the Vault [+]Loading...["Tales from the Vault (audio story)"])

The Doctor twice changed himself into a human who used the name John Smith. This occurred in their seventh incarnation, (PROSE: Human Nature [+]Loading...["Human Nature (novel)"]) and in their tenth incarnation. (TV: Human Nature [+]Loading...["Human Nature (TV story)"])

Often, the Doctor would use variations of the name, like the online handle "jsmith", jsmith8", (PROSE: Blue Box [+]Loading...["Blue Box (novel)"], Lonely [+]Loading...["Lonely (short story)"]) the French variation "Jean Forgeron", (COMIC: The Forgotten [+]Loading...["The Forgotten (comic story)"]) or the German translation "Johann Schmidt". (PROSE: The Shadow in the Glass [+]Loading...["The Shadow in the Glass (novel)"]; AUDIO: Storm Warning [+]Loading...["Storm Warning (audio story)"])

The Thirteenth Doctor once made use of a variant, "Jane Smith", while hiding her true identity from Martha Jones. (COMIC: A Little Help from My Friends [+]Loading...["A Little Help from My Friends (comic story)"])

By one account, "John Smith" was the name by which the Meta-Crisis Tenth Doctor chose to go upon settling down with Rose Tyler. (COMIC: Empire of the Wolf [+]Loading...["Empire of the Wolf (comic story)"])

The Tenth Doctor attempted to use this alias when he met the Fourth Doctor. However, he opted out of the second half and instead used Rose's last name, ending up with "John Tyler" instead. (AUDIO: Out of Time [+]Loading...["Out of Time (audio story)"])

The Oncoming Storm[[edit] | [edit source]]

Main article: The Oncoming Storm

The Doctor was referred to as "the Oncoming Storm" by the Draconians, (PROSE: Love and War [+]Loading...["Love and War (novel)"]) himself (PROSE: Vampire Science [+]Loading...["Vampire Science (novel)"]) and in "the ancient legends of the Dalek homeworld". (TV: The Parting of the Ways [+]Loading...["The Parting of the Ways (TV story)"]) In Draconian, the title was pronounced "Karshtakavaar". (PROSE: Love and War [+]Loading...["Love and War (novel)"]) After being told of the title by the Ninth Doctor, (TV: The Parting of the Ways [+]Loading...["The Parting of the Ways (TV story)"]) Rose Tyler called the Tenth Doctor by the "Oncoming Storm" when she and Mickey Smith were being prepared for dissection by the Clockwork Droids. (TV: The Girl in the Fireplace [+]Loading...["The Girl in the Fireplace (TV story)"])

The Tenth Doctor later introduced himself as the "Oncoming Storm" to a Dalek aboard of the Wayfarer, (PROSE: Prisoner of the Daleks [+]Loading...["Prisoner of the Daleks (novel)"]) and referred to the title when confronting a rabbit he thought was a Zygon. (TV: The Day of the Doctor [+]Loading...["The Day of the Doctor (TV story)"])

The Eleventh Doctor began calling himself the "Oncoming Storm" when he misinterpreted Sean's request to help the King's Arms football team "annihilate" another team at a match. (TV: The Lodger [+]Loading...["The Lodger (TV story)"]) He later referred to the title when the Daleks forgot him. (TV: Asylum of the Daleks [+]Loading...["Asylum of the Daleks (TV story)"])

Destroyer of Worlds[[edit] | [edit source]]

As early as their second incarnation, the Doctor knew that the Daleks had also given them the epithet "Ka Faraq Gatri", (COMIC: Bringer of Darkness [+]Loading...["Bringer of Darkness (comic story)"]) which translated as "Destroyer of Worlds". (PROSE: Timewyrm: Revelation [+]Loading...["Timewyrm: Revelation (novel)"]) or possibly, "Nice guy, if you're a biped". (PROSE: Continuity Errors [+]Loading...["Continuity Errors (short story)"]) He had been awarded the name upon orchestrating the destruction of the Dalek home planet Skaro in his seventh incarnation, (TV: Remembrance of the Daleks [+]Loading...["Remembrance of the Daleks (TV story)"]) though the Daleks also used it prior to Skaro's destruction. (COMIC: Bringer of Darkness [+]Loading...["Bringer of Darkness (comic story)"]) Davros also referred to the Doctor as "the Destroyer of Worlds" after the Meta-Crisis Tenth Doctor destroyed the New Dalek Empire on the Crucible. (TV: Journey's End [+]Loading...["Journey's End (TV story)"])

First Doctor[[edit] | [edit source]]

Known uses of John Smith[[edit] | [edit source]]

Other aliases[[edit] | [edit source]]

Impersonations[[edit] | [edit source]]

Nicknames[[edit] | [edit source]]

Titles and epitaphs[[edit] | [edit source]]

Second Doctor[[edit] | [edit source]]

Known uses of John Smith[[edit] | [edit source]]

Other aliases[[edit] | [edit source]]

  • Gaius Iunius Faber: "Iunius Faber" being the Latin equivalent of John Smith. The Second Doctor used this alias during his visit to Bruttium, Italy in 71 BC. (PROSE: The Slave War [+]Loading...["The Slave War (short story)"])
  • Doctor Galloway: Edward Waterfield made up this name for the Second Doctor when arranging to meet him. (TV: The Evil of the Daleks [+]Loading...["The Evil of the Daleks (TV story)"])
  • The Wizard of Omega (COMIC: The Witches [+]Loading...["The Witches (comic story)"])
  • Dr Rip Van Winkle: A name given to him by Mrs Craig. (PROSE: The Indestructible Man [+]Loading...["The Indestructible Man (novel)"])
  • Doctor Gond (TV: The Krotons [+]Loading...["The Krotons (TV story)"])
  • Citizen-Representative Henri Dupont (PROSE: World Game [+]Loading...["World Game (novel)"])
  • Doctor Jean Dupont (PROSE: World Game [+]Loading...["World Game (novel)"])
  • Doctor Mason: An alias used when he took part in a jury at the trial of the First Doctor for killing a werewolf. (PROSE: The Juror's Story [+]Loading...["The Juror's Story (short story)"])

Impersonations[[edit] | [edit source]]

Nicknames[[edit] | [edit source]]

  • Clown: A nickname bestowed upon him by the First Doctor for his comical dress sense. (TV: The Three Doctors [+]Loading...["The Three Doctors (TV story)"])
  • Beatles Haircut: A nickname given to the Second Doctor by Ace. (AUDIO: The Light at the End [+]Loading...["The Light at the End (audio story)"])
  • Archibald (PROSE: Fallen Angel [+]Loading...["Fallen Angel (short story)"])
  • Alphonse (PROSE: Fallen Angel [+]Loading...["Fallen Angel (short story)"])
  • High-Brain (TV: The Krotons [+]Loading...["The Krotons (TV story)"])
  • Scarecrow: Spitefully used as a retort against his unkempt appearance by the Third Doctor in return for being called "fancy pants". (TV: The Five Doctors [+]Loading...["The Five Doctors (TV story)"])

Titles and epitaphs[[edit] | [edit source]]

Third Doctor[[edit] | [edit source]]

Known uses of John Smith[[edit] | [edit source]]

Other aliases[[edit] | [edit source]]

Impersonations[[edit] | [edit source]]

Nicknames[[edit] | [edit source]]

  • Dr. Watson: Called as such by the Brigadier in retaliation to the Doctor belittling his intelligence by saying he was "not exactly a little Sherlock Holmes". (TV: Doctor Who and the Silurians [+]Loading...["Doctor Who and the Silurians (TV story)"])
  • Monsieur Mystery (COMIC: Timebenders [+]Loading...["Timebenders (comic story)"])
  • Dandy: A nickname bestowed upon him by the First Doctor for his upper-class attire. (TV: The Three Doctors [+]Loading...["The Three Doctors (TV story)"])
  • Thedoct>Orism: The Doctor's title as interpreted by the Siccati. It could be shortened to Thedoct. (PROSE: Neptune [+]Loading...["Neptune (short story)"], Sedna [+]Loading...["Sedna (short story)"])
  • Frilly Shirt: A nickname given to the Third Doctor by Ace. (AUDIO: The Light at the End [+]Loading...["The Light at the End (audio story)"])
  • The Spokesperson (TV: Death to the Daleks [+]Loading...["Death to the Daleks (TV story)"])
  • White Thing (COMIC: After the Revolution [+]Loading...["After the Revolution (comic story)"])
  • Fancy Pants: An insult used by the Second Doctor to get a parting shot in at his successor's appearance before the incarnations went their separate ways. (TV: The Five Doctors [+]Loading...["The Five Doctors (TV story)"])

Titles and epitaphs[[edit] | [edit source]]

Fourth Doctor[[edit] | [edit source]]

Known uses of John Smith[[edit] | [edit source]]

  • A French variation, "Brigadier-General Jean Forgeron," was used by the Doctor when met by French soldiers in the labyrinth underneath Paris. (COMIC: The Forgotten [+]Loading...["The Forgotten (comic story)"])
  • He used the name in Budapest in 1980. (AUDIO: The Labyrinth of Buda Castle [+]Loading...["The Labyrinth of Buda Castle (audio story)"])
  • Figment knew the Fourth Doctor by the name "Jonathan Smith". (POEM: Afterwords [+]Loading...["Afterwords (poem)"])

Other aliases[[edit] | [edit source]]

Impersonations[[edit] | [edit source]]

Nicknames[[edit] | [edit source]]

Titles and epitaphs[[edit] | [edit source]]

  • The Bohemian / The Wanderer: Titles given to the Fourth Doctor by the Master. (GAME: Destiny of the Doctors [+]Loading...["Destiny of the Doctors (video game)"])
  • The Evil One: The Sevateem tribe referred to the Doctor as "the Evil One". Xoanon, the supercomputer which they worshipped, had two personalities, one of which was based on the Fourth Doctor. (TV: The Face of Evil [+]Loading...["The Face of Evil (TV story)"])
  • The Wizard: Emily, a child in whom Leela was reborn after her death, referred to the Doctor as "the Wizard." (AUDIO: The Child [+]Loading...["The Child (audio story)"])
  • The Boggle-Eyed Demon: Delthea's people believed the Doctor was a malevolant being from their history who had brought their civilisation to ruin by destroying the Protector. He was remembered as the Boggle-Eyed Demon is their pantomimes and other stories which villified him. (PROSE: The Destroyers [+]Loading...["The Destroyers (short story)"])
  • Everywhere Man: The Tarl leader Ergu opted to refer to the Doctor as this was after asking him about his origins. The Doctor answered he came from "everywhere". (AUDIO: The Exxilons [+]Loading...["The Exxilons (audio story)"])
  • The Great Emoter (COMIC: City of the Damned [+]Loading...["City of the Damned (comic story)"])

Fifth Doctor[[edit] | [edit source]]

Known uses of John Smith[[edit] | [edit source]]

Other aliases[[edit] | [edit source]]

  • Gaius Claudius Maximus: The Doctor used this name while visiting Cumae in 63 BC. (AUDIO: Tartarus [+]Loading...["Tartarus (audio story)"])
  • Doctor Walters: The Doctor used this name while stuck in Victorian London without his TARDIS for a year from November 1866 to 1867. (AUDIO: The Haunting of Thomas Brewster [+]Loading...["The Haunting of Thomas Brewster (audio story)"])
  • Dr Jonas Smythe: The Doctor used this name when working with Liz Shaw in Italy. (PROSE: Flashpoint [+]Loading...["Flashpoint (short story)"])
  • The Supremo: The Doctor called himself "the Supremo" while leading the Alliance against the army of the renegade Time Lord Morbius. Originally, his title was "Supreme Controller", but the Ogrons of his personal guard could not pronounce it and shortened it to the simpler "Supremo". (PROSE: Warmonger [+]Loading...["Warmonger (novel)"])

Impersonations[[edit] | [edit source]]

Nicknames[[edit] | [edit source]]

Sixth Doctor[[edit] | [edit source]]

Known uses of John Smith[[edit] | [edit source]]

Other aliases[[edit] | [edit source]]

Impersonations[[edit] | [edit source]]

Nicknames[[edit] | [edit source]]

Titles and epitaphs[[edit] | [edit source]]

Seventh Doctor[[edit] | [edit source]]

Known uses of John Smith[[edit] | [edit source]]

Other aliases[[edit] | [edit source]]

Impersonations[[edit] | [edit source]]

Nicknames[[edit] | [edit source]]

  • Sunbeam (TV: Paradise Towers [+]Loading...["Paradise Towers (TV story)"])
  • Professor: Ace called the Doctor this instead of his preferred name. (TV: Dragonfire [+]Loading...["Dragonfire (TV story)"] et al.)

Titles and epitaphs[[edit] | [edit source]]

Eighth Doctor[[edit] | [edit source]]

Known uses of John Smith[[edit] | [edit source]]

Other aliases[[edit] | [edit source]]

  • John Doe: In a continuation of the circumstances described above for the Seventh Doctor, the Eighth Doctor was referred to by this name after his escape from the morgue was discovered. (TV: Doctor Who [+]Loading...["Doctor Who (TV story)"])
  • Dr. James Alistair Bowman: Dr Grace Holloway came up with the name "Dr. Bowman" for the Eighth Doctor whilst introducing him to others at the New Year's Eve party. (TV: Doctor Who [+]Loading...["Doctor Who (TV story)"]) The Doctor subsequently used the "Dr. Bowman" alias on occasion, filling it out to "James Alistair Bowman", (PROSE: Seeing I [+]Loading...["Seeing I (novel)"], Unnatural History [+]Loading...["Unnatural History (novel)"], Frontier Worlds [+]Loading...["Frontier Worlds (novel)"]) such as when at the First Doctor's trial for the killing of a werewolf. (PROSE: The Juror's Story [+]Loading...["The Juror's Story (short story)"])
  • Dr. Beech: According to one account, Grace came up with the name "Dr. Beech" for the Doctor whilst introducing him to others at the New Year's Eve party. (PROSE: The Novel of the Film [+]Loading...["The Novel of the Film (novelisation)"])
  • Merlin: The Doctor took up the alias to deliver King Arthur in another reality. (PROSE: One Fateful Knight [+]Loading...["One Fateful Knight (short story)"]) Later, whilst stuck in the otherworld of Avalon, the Doctor attempted to pass himself off as Merlin to Queen Mab. (PROSE: The Shadows of Avalon [+]Loading...["The Shadows of Avalon (novel)"])
  • Doctor Doctor: Inadvertently introduced as such when talking to Doctor Charles Roley and his staff; Sam Jones dismissed it as an amusing irony, with the Doctor explaining that this was why he preferred to just be known as "Doctor". (PROSE: The Taint [+]Loading...["The Taint (novel)"])
  • Dr Jack-of-the-Moon: This was a term meaning those who concentrated on high-minded things at the expense of the normal world. It was used to refer to the Doctor (for example, on his marriage invitation) during his time on Henrietta Street. (PROSE: The Adventuress of Henrietta Street [+]Loading...["The Adventuress of Henrietta Street (novel)"])
  • Perdix: While in Rhadamanthys' court. (PROSE: Fallen Gods [+]Loading...["Fallen Gods (novel)"])
  • Blessed Destroyer: Erasmus told Chloe that their world had been destroyed by the Blessed Destroyer. (PROSE: Timeless [+]Loading...["Timeless (novel)"])
  • Gracie Witherspoon: To defeat the Threshold, the Doctor used a personal chameleon circuit to take the appearance of a female Threshold agent while Shayde masqueraded as the Doctor. (COMIC: Wormwood [+]Loading...["Wormwood (comic story)"])
  • Dr Frankenstein: When meeting Mary Shelley and the other inhabitants of Villa Diodati in Switzerland, the half-delirious Doctor introduced himself this way. (AUDIO: Mary's Story [+]Loading...["Mary's Story (audio story)"])
  • Ambrosius Clemenses: An alias used in 305, with Charley being "Dasia Dasia". (AUDIO: Seasons of Fear [+]Loading...["Seasons of Fear (audio story)"])
  • Reverend Doctor of Bruges: An alias used in 1055, with Charley being "Lady Charlotte". (AUDIO: Seasons of Fear [+]Loading...["Seasons of Fear (audio story)"])
  • Sir Doctor Peter Pollard: When he arrived at Sebastian Grayle's 19th-century manor house, with Charlotte Pollard pretending to be his daughter. (AUDIO: Seasons of Fear [+]Loading...["Seasons of Fear (audio story)"])
  • Bert Higgins: While on Nixyce VII. (AUDIO: The Traitor [+]Loading...["The Traitor (audio story)"], Eyes of the Master [+]Loading...["Eyes of the Master (audio story)"])
  • Dr Foster: To hide his identity from Nyssa, he introduced himself as Dr Foster from the planet Gloucester, famous for its rains and huge puddles. (AUDIO: A Heart on Both Sides [+]Loading...["A Heart on Both Sides (audio story)"])
  • Captain Jonah: While serving as captain on the Bloodhound during the Time War. (AUDIO: Jonah [+]Loading...["Jonah (audio story)"])
  • Mr Seta (AUDIO: The Edge of Redemption [+]Loading...["The Edge of Redemption (audio story)"])

Impersonations[[edit] | [edit source]]

Nicknames[[edit] | [edit source]]

  • Skipper: The Doctor's companion Samson Griffin always referred to him as such. (AUDIO: Terror Firma [+]Loading...["Terror Firma (audio story)"])
  • Lord Byron: A nickname given to the Eighth Doctor by Ace. (AUDIO: The Light at the End [+]Loading...["The Light at the End (audio story)"])
  • Tigger / Eeyore: When the Doctor is split into three, each bearing different parts of his personality, Charley Pollard gave these nicknames to the bouncy and excitable, and the surly and ruthless Doctors. (AUDIO: Caerdroia [+]Loading...["Caerdroia (audio story)"])
  • Specific Healer (PROSE: Osskah [+]Loading...["Osskah (short story)"])

Titles and epitaphs[[edit] | [edit source]]

War Doctor[[edit] | [edit source]]

Known uses of John Smith[[edit] | [edit source]]

  • The War Doctor used the name John Smith to introduce himself to Garv on Keska. (AUDIO: The Thousand Worlds [+]Loading...["The Thousand Worlds (audio story)"])
  • He also used the name when introducing himself to Coyne, as he did not wish for his Time Lord heritage to be discovered. (PROSE: Engines of War [+]Loading...["Engines of War (novel)"])

Other aliases[[edit] | [edit source]]

  • Prisoner 101: A designation given to him by Cardinal Ollistra when she arrested him as a war criminal. (AUDIO: Legion of the Lost [+]Loading...["Legion of the Lost (audio story)"])
  • Stowaway: Rosata Laxter called him this repeatedly after discovering the Doctor on her ship, when she heard others refer to him by his former title, he insisted she continued calling him "Stowaway". (AUDIO: The Lady of Obsidian [+]Loading...["The Lady of Obsidian (audio story)"])

Nicknames[[edit] | [edit source]]

  • Greybeard: A descriptive name given to him by Kalan due to his silver beard. (AUDIO: The Eternity Cage [+]Loading...["The Eternity Cage (audio story)"])
  • The Mad Fool: A nickname given by the Eleventh General, since the War Doctor was working against the Time Lords' plans and seemingly ensuring their destruction. (TV: The Day of the Doctor [+]Loading...["The Day of the Doctor (TV story)"])
  • Grandad: A nickname given by the Eleventh Doctor due to the War Doctor's aged appearance. (TV: The Day of the Doctor [+]Loading...["The Day of the Doctor (TV story)"])
  • Captain Grumpy: A nickname given by the Eleventh Doctor due to the War Doctor's serious personality. (TV: The Time of the Doctor [+]Loading...["The Time of the Doctor (TV story)"])

Titles and epitaphs[[edit] | [edit source]]

  • The Warrior: The moniker the Doctor chose to take in the Fifth Segment of the Time War upon his eighth regeneration, (PROSE: The Stranger [+]Loading...["The Stranger (short story)"]) and his rejection of his "Doctor" title. (TV: The Night of the Doctor [+]Loading...["The Night of the Doctor (TV story)"]) By the time he went back to the First Segment of the war, he had stopped calling himself a warrior as well. (PROSE: The Stranger [+]Loading...["The Stranger (short story)"]) Clara Oswald later referred to him as "the Warrior" to differ himself from the Tenth and Eleventh Doctors. (TV: The Day of the Doctor [+]Loading...["The Day of the Doctor (TV story)"]) The Twelfth Doctor remembered him by this name. (PROSE: The Complete History of the Doctor [+]Loading...{"page":"9","1":"The Complete History of the Doctor (short story)"})
  • The Lord of Death: One of the Volatix Cabal identified the Doctor as such during the Time War. (COMIC: The Organ Grinder [+]Loading...["The Organ Grinder (comic story)"])
  • The Predator of the Daleks: A descriptive term for the Doctor used by the Daleks, (TV: Asylum of the Daleks [+]Loading...["Asylum of the Daleks (TV story)"]) that originated during his war incarnation. (PROSE: Engines of War [+]Loading...["Engines of War (novel)"], Decoy [+]Loading...["Decoy (short story)"])
  • The Deathbringer: A title bestowed upon the Doctor by the Daleks during the Time War. (PROSE: Decoy [+]Loading...["Decoy (short story)"])
  • The One Without Mercy: A title bestowed upon the Doctor by the Daleks during the Time War. (PROSE: Decoy [+]Loading...["Decoy (short story)"])
  • Dalek Killer: One of the names awarded to the War Doctor by the Daleks. (PROSE: Engines of War [+]Loading...["Engines of War (novel)"])
  • The Great Scourge: One of the names awarded to the War Doctor by the Daleks. (PROSE: Engines of War [+]Loading...["Engines of War (novel)"])
  • The Living Death: One of the names awarded to the War Doctor by the Daleks. (PROSE: Engines of War [+]Loading...["Engines of War (novel)"])
  • The Executioner: One of the names awarded to the War Doctor by the Daleks. (PROSE: Engines of War [+]Loading...["Engines of War (novel)"])
  • The Renegade: A name the Time Lords used to refer to the War Doctor as he planned to use the Moment to end the Last Great Time War. (COMIC: Sky Jacks [+]Loading...["Sky Jacks (comic story)"])
  • The Doctor of War: A name that arose as part of a saying used to describe him during the Time War that was recorded by the Testimony and used by Gastron. (TV: Hell Bent [+]Loading...["Hell Bent (TV story)"], Twice Upon a Time [+]Loading...["Twice Upon a Time (TV story)"])
  • The Butcher of Skull Moon: Among the names for the Doctor recorded by the Testimony, (TV: Twice Upon a Time [+]Loading...["Twice Upon a Time (TV story)"]) in reference a battlefield attended by the War Doctor during the Last Great Time War. (TV: Hell Bent [+]Loading...["Hell Bent (TV story)"])

Ninth Doctor[[edit] | [edit source]]

Known uses of John Smith[[edit] | [edit source]]

  • The name Doctor as "Dr John Smith" on a piece of psychic paper during the Ninth Doctor's visit to 1941. (TV: The Empty Child [+]Loading...["The Empty Child (TV story)"])
  • While imprisoned at Hesguard Institute, the Doctor wore a jumpsuit identifying him as "J. Smith". (COMIC: Sin-Eaters [+]Loading...["Sin-Eaters (comic story)"])

Other aliases[[edit] | [edit source]]

Nicknames[[edit] | [edit source]]

  • The Navvie: Honoré Lechasseur's nickname for the Doctor, due to his leather jacket. (PROSE: The Albino's Dancer [+]Loading...["The Albino's Dancer (novel)"])
  • U-boat Captain: A snide nickname given by Captain Jack, who mocked the Ninth Doctor's double-breasted peacoat of black leather which made him look like a Nazi officer. (TV: The Empty Child [+]Loading...["The Empty Child (TV story)"])
  • Larry: Called this by Jackie Tyler after being ordered to close the TARDIS doors. (COMIC: Supremacy of the Cybermen [+]Loading...["Supremacy of the Cybermen (comic story)"])
  • Muggins: Jackie Tyler uses this name to refer to the Doctor after the TARDIS central console exploded. (COMIC: Supremacy of the Cybermen [+]Loading...["Supremacy of the Cybermen (comic story)"])
  • Big Ears: Mickey Smith describes the Ninth Doctor in this way, causing the latter to believe Mickey was saying he wasn't handsome. (TV: Boom Town [+]Loading...["Boom Town (TV story)"])
  • Me with the ears: The Tenth Doctor called him this to address him directly. (COMIC: The Lost Dimension [+]Loading...["The Lost Dimension (comic story)"])
  • Marley's Ghost: In reference to Jacob Marley of A Christmas Carol, his Matrix projection is called this by the Tenth Doctor when he makes a comment about the latter's changing after the Time War. (COMIC: The Forgotten [+]Loading...["The Forgotten (comic story)"])
  • Big Nose: The Tenth Doctor refers to this incarnation as such when questioning the Alternate Twelfth Doctor about his whereabouts. (COMIC: Four Doctors [+]Loading...["Four Doctors (comic story)"])
  • God of Outer Mystery: Called as such by Mickey Smith on the Who is Doctor Who? website. (PROSE: Hoax This! [+]Loading...["Hoax This! (short story)"])

Titles and epitaphs[[edit] | [edit source]]

  • The Final Judgement: Title used by Addison Delamar when auctioning off the Doctor's memories. (COMIC: The Bidding War [+]Loading...["The Bidding War (comic story)"])
  • The Prophet: Called so by Father Heretika, a representative of the Church of the Evergreen Man, a race who believed the Doctor to be a messiah. (COMIC: The Bidding War [+]Loading...["The Bidding War (comic story)"])
  • The Coward: The name given by the Metaltron Dalek. (TV: Dalek [+]Loading...["Dalek (TV story)"])
  • The Great Exterminator: The name given to the Doctor by the Dalek Emperor whilst preparing a Delta Wave. (TV: The Parting of the Ways [+]Loading...["The Parting of the Ways (TV story)"])
  • The Great Destroyer: Another name given to the Doctor by the Dalek Emperor, whilst taunting the Doctor to use his Delta Wave. (TV: The Parting of the Ways [+]Loading...["The Parting of the Ways (TV story)"])
  • The Heathen: Another name given to the Doctor by the Dalek Emperor. (TV: The Parting of the Ways [+]Loading...["The Parting of the Ways (TV story)"])

Tenth Doctor[[edit] | [edit source]]

Known uses of John Smith[[edit] | [edit source]]

  • The Tenth Doctor used the name while working undercover as a science teacher at Deffry Vale High School. (TV: School Reunion [+]Loading...["School Reunion (TV story)"])
  • He also used it while posing as a patient at Royal Hope Hospital (TV: Smith and Jones [+]Loading...["Smith and Jones (TV story)"])
  • While temporarily human in 20th Century England, he used the name John Smith, believing it to be his actual name. (TV: Human Nature [+]Loading...["Human Nature (TV story)"] / The Family of Blood [+]Loading...["The Family of Blood (TV story)"])
  • He used the name "Dr. John Smith, opto-mechanical technician for the Imperial College [of] London" to gain access to the Griffith Observatory. (COMIC: Quiet on the Set [+]Loading...["Quiet on the Set (comic story)"])
  • The Tenth Doctor told Professor Conrad Morris that his name was John Smith in 2088. (PROSE: Breathing Space [+]Loading...["Breathing Space (short story)"])
  • The Tenth Doctor used the name while impersonating a health and safety officer during an investigation of Adipose Industries. (TV: Partners in Crime [+]Loading...["Partners in Crime (TV story)"])
  • While at Eddison Manor after the murder of Professor Gerald Peach, the Tenth Doctor claimed to be Chief Inspector Smith of Scotland Yard in order to keep the police out of what he suspected to be an alien crime. (TV: The Unicorn and the Wasp [+]Loading...["The Unicorn and the Wasp (TV story)"])
  • The Tenth Doctor attempted to use the alias aboard the Crusader 50 bus on the planet Midnight when asked for his name, but it was recognised as a false name and rejected by the panicking humans aboard. (TV: Midnight [+]Loading...["Midnight (TV story)"])
  • He used it when reintroducing himself to Donna Noble after he erased her memories of him. (TV: Journey's End [+]Loading...["Journey's End (TV story)"])
  • He used it when encountering Jackson Lake, a man who, due to Infostamp exposure, believed himself to be an incarnation of the Doctor. (TV: The Next Doctor [+]Loading...["The Next Doctor (TV story)"])
  • The Tenth Doctor introduced himself as John Smith to Cleo. (COMIC: The Fountains of Forever [+]Loading...["The Fountains of Forever (comic story)"])
  • He used the alias "Dr. John Smith" when he claimed to be replacing Dr. Bell from the Inspectorate. (COMIC: The Lost Dimension [+]Loading...["The Lost Dimension (comic story)"])
  • The Tenth Doctor used the alias while pretending to be a manager of the Brainy Crisps industry. (PROSE: Code of the Krillitanes [+]Loading...["Code of the Krillitanes (novel)"])

Other aliases[[edit] | [edit source]]

Nicknames[[edit] | [edit source]]

  • Fireplace Man (TV: The Girl in the Fireplace [+]Loading...["The Girl in the Fireplace (TV story)"])
  • Martian Boy: Donna Noble once called the Doctor by this name, earning his protests that he was not from Mars. (TV: The Runaway Bride [+]Loading...["The Runaway Bride (TV story)"])
  • Easter Egg Man: (PROSE: The Secret Lives of Monsters [+]Loading...["The Secret Lives of Monsters (novel)"]) The Doctor's message to Sally Sparrow about the Weeping Angels (TV: Blink [+]Loading...["Blink (TV story)"]) was a mystery to the many others who watched the "easter egg" on the seventeen DVDs. As he was unidentified in the clip, those who watched it took to calling him the "Easter Egg Man." (PROSE: The Secret Lives of Monsters [+]Loading...["The Secret Lives of Monsters (novel)"])
  • Gramps: The Saxon Master once called the Doctor this name as a joke towards his old age. (TV: Last of the Time Lords [+]Loading...["Last of the Time Lords (TV story)"])
  • Gandalf: The Saxon Master once called the Doctor this name as a joke. (TV: Last of the Time Lords [+]Loading...["Last of the Time Lords (TV story)"])
  • Spaceman: Donna Noble often called the Doctor by this name and Christina de Souza also referred to the Tenth Doctor by this as well. (TV: The Fires of Pompeii [+]Loading...["The Fires of Pompeii (TV story)"], Planet of the Dead [+]Loading...["Planet of the Dead (TV story)"])
  • Mr Conditional Clause: A nickname given by a frustrated Luke Rattigan after the Doctor said "ATMOS system" as a clapback because "ATMOS" meant "Atmospheric Omission System" and the Doctor would, according to Luke, be saying "Atmospheric Omission System system". This was because Luke earlier had said to the thought of moving to other planets "if only that was possible" and the Doctor corrected him saying "if only that were possible", saying it was a "conditional clause". (TV: The Sontaran Stratagem [+]Loading...["The Sontaran Stratagem (TV story)"])
  • Pretty Boy: Used by River Song the first time he meets her from his point of view. (TV: Silence in the Library [+]Loading...["Silence in the Library (TV story)"], Forest of the Dead [+]Loading...["Forest of the Dead (TV story)"])
  • Baby Doctor: The Twelfth Doctor referred to this incarnation as such when fearing he would be "Scary Doctor". (COMIC: Four Doctors [+]Loading...["Four Doctors (comic story)"])
  • Doc-Dude: Referred to as such by Cindy Wu after the Doctor forbade her from calling him "Baby", "Buster" and "Dude". (COMIC: Lady of the Blue Box [+]Loading...["Lady of the Blue Box (comic story)"])
  • Bambi: The Twelfth Doctor called the Tenth this due to his large brown eyes. (COMIC: Vortex Butterflies [+]Loading...["Vortex Butterflies (comic story)"])
  • Merlin: The Tenth Doctor claimed that he was called Merlin by King Arthur. (COMIC: Fugitive [+]Loading...["Fugitive (comic story)"])
  • Matchstick Man: A nickname given to him by his successor upon noticing that he had been exceptionally thin. (TV: The Day of the Doctor [+]Loading...["The Day of the Doctor (TV story)"])
  • Daddy's Suit: The War Doctor's nickname for the Tenth Doctor, due to his dress sense. (PROSE: The Day of the Doctor [+]Loading...["The Day of the Doctor (novelisation)"])
  • Sandshoes: A mocking nickname given to him by the Eleventh Doctor in reference to his choice of footwear. (TV: The Day of the Doctor [+]Loading...["The Day of the Doctor (TV story)"])
  • Dick van Dyke: Another mocking nickname given by the Eleventh Doctor, after the Tenth commented on the War Doctor's gravelly voice. (TV: The Day of the Doctor [+]Loading...["The Day of the Doctor (TV story)"])

Titles and epitaphs[[edit] | [edit source]]

Eleventh Doctor[[edit] | [edit source]]

Known uses of John Smith[[edit] | [edit source]]

Other aliases[[edit] | [edit source]]

Impersonations[[edit] | [edit source]]

Nicknames[[edit] | [edit source]]

  • Mr. Moon: A descriptive name the Doctor gave himself after first examining his new face. (PROSE: The Day of the Doctor [+]Loading...["The Day of the Doctor (novelisation)"])
  • Sweetie: Frequently used by River Song as a dual greeting and affectionate nickname. (TV: The Time of Angels [+]Loading...["The Time of Angels (TV story)"], et al.)
  • Space Gandalf: When questioned by Amy as to what kind of person he's like, the Doctor answered that he was like a "Space Gandalf". (TV: Meanwhile in the TARDIS 2 [+]Loading...["Meanwhile in the TARDIS 2 (TV story)"])
  • Mr Cool (TV: Amy's Choice [+]Loading...["Amy's Choice (TV story)"])
  • Ancient Amateur: The Doctor described himself as such to Craig Owen. (TV: The Lodger [+]Loading...["The Lodger (TV story)"])
  • Caesar: A Roman Auton, under the influence of River Song's hallucinogenic lipstick, in 102 A.D., mistook the Doctor for Caesar. (TV: The Pandorica Opens [+]Loading...["The Pandorica Opens (TV story)"])
  • My Love: A term of affection River Song used for the Doctor. (TV: The Pandorica Opens [+]Loading...["The Pandorica Opens (TV story)"])
  • Bowtie me: The Tenth Doctor referred to this incarnation to his companions. (COMIC: Four Doctors [+]Loading...["Four Doctors (comic story)"])
  • Posh Doctor: The Twelfth Doctor referred to this incarnation as such when fearing he would be "Scary Doctor". (COMIC: Four Doctors [+]Loading...["Four Doctors (comic story)"])
  • Legs Eleven: Called this by the Twelfth Doctor when referring to this incarnation to Gabby Gonzalez. (COMIC: Four Doctors [+]Loading...["Four Doctors (comic story)"])
  • Laughing Boy: Referred to as this by the Ninth Doctor, after the Eleventh Doctor was found trapped in a Type One TARDIS. (COMIC: The Lost Dimension [+]Loading...["The Lost Dimension (comic story)"])
  • Time Boy: Used by Mels, the second incarnation of River Song, as she anticipated meeting the Doctor while growing up with her parents in Leadworth. (TV: Let's Kill Hitler [+]Loading...["Let's Kill Hitler (TV story)"])
  • Also Not Mum: Called this by Alfie Owens in 2011. (TV: Closing Time [+]Loading...["Closing Time (TV story)"])
  • The Chin: Oswin Oswald called the Eleventh Doctor this when encountering him on the Dalek asylum due to his prominent chin. (TV: Asylum of the Daleks [+]Loading...["Asylum of the Daleks (TV story)"])
  • Monster: Ada Gillyflower called the Doctor her "monster", after he had been rejected by Mr Sweet's poison. She kept him alive because it was strange that he survived despite "rejection", and to have her own secret. (TV: The Crimson Horror [+]Loading...["The Crimson Horror (TV story)"])
  • Bow Tie: The War Doctor's nickname for the Eleventh Doctor, due to his dress sense. (PROSE: The Day of the Doctor [+]Loading...["The Day of the Doctor (novelisation)"])
  • Chinny: The Tenth Doctor's nickname for the Eleventh Doctor, due to his prominent chin. (TV: The Day of the Doctor [+]Loading...["The Day of the Doctor (TV story)"])
  • Doctor Boss (COMIC: Pay the Piper [+]Loading...["Pay the Piper (comic story)"])

Titles and epitaphs[[edit] | [edit source]]

  • Raggedy Man: A name given to the Eleventh Doctor by Amelia Pond, due to wearing the tattered remains of his predecessor's outfit. She told other people in Leadworth about the "Raggedy Doctor" and they referred to him in this way when they met him. (TV: The Eleventh Hour [+]Loading...["The Eleventh Hour (TV story)"]) Amy called him that just before she was permanently sent to the past by a Weeping Angel. (TV: The Angels Take Manhattan [+]Loading...["The Angels Take Manhattan (TV story)"]) As he was about to regenerate, the Doctor hallucinated Amy telling him affectionately "Raggedy Man, good night". (TV: The Time of the Doctor [+]Loading...["The Time of the Doctor (TV story)"])
  • A Madman with a Box: A title Amy Pond bestows on him on their first encounter after fourteen years, which he later adopted. (TV: The Eleventh Hour [+]Loading...["The Eleventh Hour (TV story)"])
  • The Rotmeister: When he is talking to Craig Owens about the suspiciously growing rot on his ceiling, he refers to himself as the "Rotmeister" since he was an expert in rot. (TV: The Lodger [+]Loading...["The Lodger (TV story)"])
  • The Ghost of Christmas Past (TV: A Christmas Carol [+]Loading...["A Christmas Carol (TV story)"])
  • Chief Executive: Alias used by the Doctor under the influence of the Entity. (COMIC: The Rise and Fall [+]Loading...["The Rise and Fall (comic story)"], The Other Doctor [+]Loading...["The Other Doctor (comic story)"])
  • The King of Okay: A title he gave to himself when Amy was shocked to see him alive and well, having seen his older self be shot and killed at Lake Silencio. He immediately tossed the idea aside, saying it was a "rubbish title", giving Rory his own title instead. (TV: The Impossible Astronaut [+]Loading...["The Impossible Astronaut (TV story)"])
  • My Thief / My Beautiful Idiot: Names given to the Doctor by the spirit of his TARDIS during their brief time together when House took over the empty shell. (TV: The Doctor's Wife [+]Loading...["The Doctor's Wife (TV story)"])
  • The Anti-Squid: A title the Doctor put little thought into due to the lack of preparation time. Meaning of the title is that he is the Devil of the space squid religion. (PROSE: Space Squid [+]Loading...["Space Squid (comic story)"])
  • The Mad Monk: Called this by the public in 1207 Cumbria, although it was noted that he was "definitely not a Monk". (TV: The Bells of Saint John [+]Loading...["The Bells of Saint John (TV story)"])
  • Clara's Boyfriend: Called this by Angie Maitland when she discovered Clara and the Doctor were time travellers (TV: The Crimson Horror [+]Loading...["The Crimson Horror (TV story)"]) and called so by Artie Maitland upon leaving the TARDIS. (TV: Nightmare in Silver [+]Loading...["Nightmare in Silver (TV story)"]) He would later pose as Clara's Swedish boyfriend to her family. (TV: The Time of the Doctor [+]Loading...["The Time of the Doctor (TV story)"]) Shortly after regenerating, the Twelfth Doctor clarified that he was not Clara's boyfriend, though he added that "it wasn't [her] mistake". (TV: Deep Breath [+]Loading...["Deep Breath (TV story)"])
  • Number Eleven: Clara reminding him that he has not run out of regenerations. When the Doctor reminds her of "Captain Grumpy" (the War Doctor), she calls him "Number Twelve". (TV: The Time of the Doctor [+]Loading...["The Time of the Doctor (TV story)"])
  • The Imp of the Pandorica: Among the names for the Doctor recorded by the Testimony, (TV: Twice Upon a Time [+]Loading...["Twice Upon a Time (TV story)"]) in reference to the prison in which the Eleventh Doctor was sealed. (TV: Twice Upon a Time [+]Loading...["Twice Upon a Time (TV story)"])
  • The Beast of Trenzalore: Among the names for the Doctor recorded by the Testimony, (TV: Twice Upon a Time [+]Loading...["Twice Upon a Time (TV story)"]) in reference to the Siege of Trenzalore in which the Eleventh Doctor defended the town of Christmas. (TV: The Time of the Doctor [+]Loading...["The Time of the Doctor (TV story)"]) Also, a name used in reference to the Doctor by the Great Intelligence, though only as "the Beast". (TV: The Name of the Doctor [+]Loading...["The Name of the Doctor (TV story)"])
  • The Demon: Kovarian taught the assassins she raised to kill the Doctor to refer to him as the Demon. The sound of his TARDIS was also referred to as "the Demon's roar". (AUDIO: The Furies [+]Loading...["The Furies (audio story)"])

Twelfth Doctor[[edit] | [edit source]]

Known uses of John Smith[[edit] | [edit source]]

Other aliases[[edit] | [edit source]]

  • Prisoner 428: His assumed title during his time in the Prison. (PROSE: The Blood Cell [+]Loading...["The Blood Cell (novel)"])
  • The Architect: A title used to disguise his identity when arranging to rob the Bank of Karabraxos; until the heist was almost complete, he was unable to remember this thanks to the deliberate use of a memory worm. (TV: Time Heist [+]Loading...["Time Heist (TV story)"])
  • Dr McGuiness: An alias he assumed while investigating "the Bell" experiment in 1944, but was quickly found out and mistaken for a German spy. (PROSE: The Crawling Terror [+]Loading...["The Crawling Terror (novel)"])
  • Skovox Artificer: Using a voice manipulator, the Doctor was able to convince a Skovox Blitzer that he was its superior and got it to deactivate itself. (TV: The Caretaker [+]Loading...["The Caretaker (TV story)"])
  • Doc Tardis: An alias given to him by Bernice Summerfield. (PROSE: Big Bang Generation [+]Loading...["Big Bang Generation (novel)"])
  • Doctor John Disco: At some point, the Doctor began referring to himself as Doctor Disco on answering machines. (TV: The Zygon Invasion [+]Loading...["The Zygon Invasion (TV story)"]) He later started introducing himself as Dr. John Disco. (TV: The Zygon Inversion [+]Loading...["The Zygon Inversion (TV story)"], Thin Ice [+]Loading...["Thin Ice (TV story)"])
  • Funkenstein: The Doctor introduced himself as "Doctor Funkenstein" to Walsh, (TV: The Zygon Invasion [+]Loading...["The Zygon Invasion (TV story)"]) and later as "Inspector Funkenstein [of] Rodent Squad" to Lloyd Collins. (COMIC: The Pestilent Heart [+]Loading...["The Pestilent Heart (comic story)"])
  • Basil: The Doctor jokingly said this was his real name when questioning Petronella Osgood about what her given name was, and she began referring to him as such. (TV: The Zygon Inversion [+]Loading...["The Zygon Inversion (TV story)"])
  • Patient 89: The Doctor's number while waiting at New Hippocrates. (COMIC: The Day at the Doctors [+]Loading...["The Day at the Doctors (comic story)"])
  • Inspector Morse (COMIC: The Pestilent Heart [+]Loading...["The Pestilent Heart (comic story)"])
  • Special Agent Dan Dangerous from Scotland Yard: The Doctor made up this name when he first introduced himself to Lucy Fletcher. (TV: The Return of Doctor Mysterio [+]Loading...["The Return of Doctor Mysterio (TV story)"])
  • Circe: Used by the Doctor while trying to infiltrate Missy's women-only social media chatroom. (PROSE: Girl Power! [+]Loading...["Girl Power! (short story)"])
  • Doctor Robert Louis Stephenson of the Royal College of Physicians: Used while investigating the mysterious events surrounding the plague outbreak in Edinburgh in 1645. (PROSE: Plague City [+]Loading...["Plague City (novel)"])
  • Doctor Destructo: Used by the Doctor on visiting Sunstrike on a mission from the Time Agency with Keira Sanstrom, who was then forced to introduce herself as Keira Destructo, his niece. (AUDIO: Sunstrike [+]Loading...["Sunstrike (audio story)"])

Impersonations[[edit] | [edit source]]

Nicknames[[edit] | [edit source]]

  • Boney Rascal: A nickname given to him by Robin Hood, due to the Doctor's slim and aged appearance. (TV: Robot of Sherwood [+]Loading...["Robot of Sherwood (TV story)"])
  • The Caretaker: Called as such by both staff and students of Coal Hill School during his brief reign as the school's caretaker. (TV: The Caretaker [+]Loading...["The Caretaker (TV story)"])
  • Outer Space Dad: Called so by Danny after he learned about the Doctor's identity; at the time, he had mistaken the Doctor for Clara's father. (TV: The Caretaker [+]Loading...["The Caretaker (TV story)"])
  • Nosferatu: Called so by corrupt cops working for Scindia-Corp, due to his aged appearance and the possibility of him being a vampiric creature that killed Tiger. (COMIC: The Swords of Kali [+]Loading...["The Swords of Kali (comic story)"])
  • Spindly Stick-insect: Called so by Chandra Scindia. (COMIC: The Swords of Kali [+]Loading...["The Swords of Kali (comic story)"])
  • The Cat in the Hat: Referred to as such by Johnny Dragotta. (COMIC: Gangland [+]Loading...["Gangland (comic story)"])
  • Mr. Grumpy: Referred to as such by the Tenth Doctor. (COMIC: Four Doctors [+]Loading...["Four Doctors (comic story)"])
  • Herrdoctor (COMIC: The Instruments of War [+]Loading...["The Instruments of War (comic story)"])
  • Skeleton Man: A name given to him by Shona McCullough, who had mistaken him for a ghost when they first met. (TV: Last Christmas [+]Loading...["Last Christmas (TV story)"])
  • The Eyebrows: A nickname given to him by Missy to differentiate the twelfth incarnation from the other Doctors. (TV: The Witch's Familiar [+]Loading...["The Witch's Familiar (TV story)"])
  • Ducks (COMIC: Witch Hunt [+]Loading...["Witch Hunt (comic story)"])
  • Me with the eyebrows: The Tenth Doctor calls him this to address him directly. (COMIC: The Lost Dimension [+]Loading...["The Lost Dimension (comic story)"])
  • Granddad: Nickname given by the Tenth Doctor to reference his age. (COMIC: The Lost Dimension [+]Loading...["The Lost Dimension (comic story)"])

Titles and epitaphs[[edit] | [edit source]]

Thirteenth Doctor[[edit] | [edit source]]

Known uses of Jane Smith[[edit] | [edit source]]

Other aliases[[edit] | [edit source]]

Nicknames[[edit] | [edit source]]

Titles and epitaphs[[edit] | [edit source]]

  • The Timeless Child: First spoken to the Doctor by the Remnants, though not in direct reference to her, (TV: The Ghost Monument [+]Loading...["The Ghost Monument (TV story)"]) this title referenced the Doctor's potential many incarnations that existed before the incarnation which she believed to be her first incarnation. (TV: The Timeless Children [+]Loading...["The Timeless Children (TV story)"])

Fourteenth Doctor[[edit] | [edit source]]

Nicknames[[edit] | [edit source]]

Titles and epitaphs[[edit] | [edit source]]

  • Grand Master of the Knowledge (TV: The Star Beast [+]Loading...["The Star Beast (TV story)"])

Fifteenth Doctor[[edit] | [edit source]]

Nicknames[[edit] | [edit source]]

  • The Dancing Man: upon seeing the Doctor a day after their encounter in a nightclub, Ruby Sunday identified him as such in her mind. (PROSE: The Church on Ruby Road [+]Loading...{"page":"61","chaptnum":"Nine","1":"The Church on Ruby Road (novelisation)"})

Miscellaneous[[edit] | [edit source]]

Other aliases[[edit] | [edit source]]

Nicknames[[edit] | [edit source]]

  • Damsel: A codename for the Doctor that River Song used on her missions, owing to the fact that he "needed rescuing a lot" of the time. (TV: The Husbands of River Song [+]Loading...["The Husbands of River Song (TV story)"])

Titles and epitaphs[[edit] | [edit source]]

Other[[edit] | [edit source]]

Behind the scenes[[edit] | [edit source]]

The Doctor's name[[edit] | [edit source]]

This section needs a cleanup.

Outdated, the name is used in The Trial of Doctor Who (short story) which clarifies its usage.

Invalid sources[[edit] | [edit source]]

  • After giving up his name, the War Doctor tested several aliases, including "Mister Moody", which he dropped when it proved incapable of eliciting shock and awe on the battlefield. (PROSE: The Doctor of War)

Ordinal or cardinal[[edit] | [edit source]]

The novelisation The Five Doctors [+]Loading...["The Five Doctors (novelisation)"] distinguishes the incarnations of the Doctor by their cardinal number (Doctor One, Doctor Two, Doctor Three, Doctor Four).

In The ArcHive Tapes, the narrator refers to the Doctor's incarnations as "Doctor (cardinal number)" rather than "the (ordinal number) Doctor".

Footnotes[[edit] | [edit source]]

  1. ↑ The actual signature is not seen on screen, but Sylvester McCoy's hand movement in the scene makes it clear that he signed a question mark.
  2. ↑ Doctor Who's real name is Mildred, claims Steven Moffat. NME. Retrieved on 12 April 2016.
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