Meta-Crisis Doctor

Meta-Crisis Doctor
Main aliases:	Corin
Species:	Human-Time Lord Meta-Crisis, Offshoot of the Doctor's species
Job:	Teacher, Scientific advisor
Affiliated with:	UNIT
Place of origin:	The Doctor's TARDIS
Children:	Rose Tyler's child
Partner:	Rose Tyler
First appearance:	Journey's End
Appearances:	AUDIO: The Siege of Big Ben AUDIO: Flight Into Hull! PROSE: The Turning of the Tide
Main actor:	David Tennant
Other actors:	Colum Regan
Memorable moment
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Behind the scenes video
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You may be looking for the Time Lord from which this duplicate was created.

Incarnations of the Doctor
Widely accepted
Others / unplaced incarnations
More ambiguous

The Doctor, also known as Corin, (PROSE: The Turning of the Tide) was a human-Time Lord hybrid of the Tenth Doctor and Donna Noble who was created by an instantaneous biological metacrisis and was the final result of the Tenth Doctor's aborted regeneration. Unlike the original Doctor, this one possessed one heart, aged as humans did, and had no regenerative ability.

However, he was born in a separate body than the original Doctor, existing as a separate person with DNA sampled from Donna. After destroying the Daleks, he was "banished" to Pete's World to live out his life with Rose Tyler.

Biography

A day to come

Mawdryn attempted to force the Fifth Doctor to use up his eight remaining regenerations to end his followers' cycle of perpetual rebirth, but this was rendered unnecessary when Alistair Gordon Lethbridge-Stewart made physical contact with his younger self and a discharge of temporal energy was released that allowed Mawdryn and his followers to die. (TV: Mawdryn Undead)

After losing his body to the Time Lords, the Tremas Master made a failed attempt to steal a regeneration from the Fifth Doctor. (PROSE: The Velvet Dark)

After the TARDIS became "stalled in the equivalent of a galactic lay-by", the Sixth Doctor had a worried thought of Peri Brown growing old and dying in the TARDIS, while he would "go on regenerating until all [his] lives [were] spent." (TV: Vengeance on Varos)

When the Tremas Master exposed the Valeyard's alliance with High Council to the Sixth Doctor at his trial, he revealed that the Valeyard was acting as the prosecutor for the trial in exchange for the Doctor's remaining regenerations. (TV: The Ultimate Foe)

When Ace was sent into the Seventh Doctor's mind, she discovered a room with thirteen cubicles, seven of them empty, while the other six contained shadowy white figures, representing the Doctor's future incarnations. (PROSE: Timewyrm: Revelation)

After using a Deathworm Morphant (PROSE: The Eight Doctors, COMIC: The Fallen) to possess a human body, the Bruce Master tried to use the Eye of Harmony to steal the Eighth Doctor's remaining regenerations to heal himself, but his plans were foiled when Grace Holloway sent the TARDIS into a temporal orbit. (TV: Doctor Who)

Origin

On Christmas 2005, the newly regenerated Tenth Doctor lost his hand in a sword fight against the Sycorax leader. (TV: The Christmas Invasion) Jack Harkness later retrieved the hand and returned it to the Doctor in a jar in the year 100 trillion. (TV: Utopia) The Doctor's hand remained in the TARDIS until the Doctor was grazed by the blast from a Dalek gunstick, triggering the Time Lord's eleventh regeneration. (TV: The Stolen Earth) After healing the damage to his body with the regeneration energy, the Doctor channelled the excess energy into his hand, a bio-matching receptacle, allowing him to heal but keep his appearance and personality. (TV: Journey's End) Even though the regeneration was aborted before it could be completed, the fact that the Doctor syphoned off the energy that would've changed his appearance after healing his injuries meant that he used up the same amount of regenerative energy as a full regeneration. This, as the Eleventh Doctor later told Clara Oswald, meant that his previous incarnation used up two regenerations due to "vanity issues." (TV: The Time of the Doctor)

Shortly after this aborted regeneration, the Daleks attempted to destroy the Doctor's TARDIS. Still inside the TARDIS during this apparent destruction, Donna Noble touched the energised hand's container. The regenerative energies present within the hand combined with Donna's human DNA, causing an instantaneous biological metacrisis. The force of the reaction shattered the container, allowing the energy to regenerate the entire missing body of the Doctor. In this process, the "metacrisis Tenth Doctor" was created. He immediately dematerialised the TARDIS, saving it and Donna.

After putting on a blue suit, the Doctor and Donna left the TARDIS and tried to attack Davros and the Daleks with his new weapon. Both were electrocuted by Davros. After the now-part-Time Lord Donna defeated the Daleks, she, the metacrisis Doctor and the original Doctor teamed up to return all but one of the planets to their rightful places. The metacrisis Doctor was then prompted by Dalek Caan to fulfil a prophecy by destroying the Daleks. He chose to do so and ignored pleas from both Davros and Donna. He proceeded to overload the Dalekanium power feeds, causing virtually the entire New Dalek Empire to explode, from individual Daleks to the Crucible itself. (TV: Journey's End)

Exile in Pete's world

Feeling his new, part-human counterpart was too dangerous to be left to his own devices, the Doctor entrusted him to Rose Tyler, taking the two of them back to Bad Wolf Bay in Pete's World. The Doctor told Rose that his part-human self-needed her, that he was angry and vengeful as he himself had been when he first met Rose. He told her she had made him better, and now she had to do the same for his other, part-human self. Rose objected to this at first, insisting that the new Doctor was not really him, despite the Doctor's assurance that they were the same man and the part-human Doctor offering to spend the rest of his life with her. Rose asked both Doctors what the last thing they had said to her was when they were originally standing on Bad Wolf Bay. The Doctor was unable to give her a direct answer: "Does it need saying?" She posed the same question to the part-human Doctor, who whispered it in her ear.

Seemingly overcome with the revelation of his answer, Rose grabbed the lapels of the part-human Doctor and pulled him into a kiss, which he reciprocated. The Doctor looked on sadly yet stoically for a moment before returning with Donna to the TARDIS and leaving the parallel world. As the doors of the TARDIS slammed shut, Rose and the part-human Doctor broke from their kiss. The part-human Doctor took Rose's hand and watched the TARDIS dematerialise. (TV: Journey's End)

Settling down with Rose

This section's awfully stubby.

Needs more info from The Turning of the Tide.

Rose insisted that she wouldn't keep referring to him as the Doctor. The meta-crisis Doctor decided to give himself a new name, eventually choosing the name "Corin", a name that Rose considered to be "solid and true". (PROSE: The Turning of the Tide) However, he would continue to be addressed as "the Doctor" by others. (AUDIO: The Siege of Big Ben, Flight Into Hull!)

Working with UNIT

The Doctor, Jackie Tyler, Peter Tyler, and Rose later joined UNIT when the Preachers were combined with UNIT. The Doctor was given a lab at the top of UNIT's base at Big Ben, where he attempted to build a TARDIS. At one point Christa attempted to force him to use his time machine to change her personal history, but the Doctor and Jackie were able to affirm that the machine wasn't ready yet, even if the rules of time travel didn't forbid such an act. (AUDIO: The Siege of Big Ben)

In an attempt to get the Doctor and Jackie to talk to each other after a disagreement, Rose and Pete tricked the Doctor into getting on a zeppelin with Jackie headed for Hull. During the flight, an alternate Jackie from a different universe appeared and threatened to shoot Jackie and take her place in Pete's World. The Doctor shot the zeppelin's flight controls, forcing the alternate Jackie to go back to her own universe to save her own life. The Doctor and Jackie then leapt from the zeppelin and into the water moments before the zeppelin crashed into the Humber Bridge. (AUDIO: Flight Into Hull!)

Personality

As a result of growing partially from Donna's DNA, Corin inherited some of Donna's mannerisms. He claimed he had the same memories, thoughts and feelings of the original Doctor up to the point of his aborted regeneration, making them essentially the same man with physiological differences. However, the original Doctor was quick to point out that his new double was "born in battle, full of blood, anger and revenge". In this way, the Tenth Doctor described his duplicate as representing the way he had been during his former incarnation before meeting Rose. This motivated Corin to commit attempted genocide against the Daleks, an act the original Doctor condemned after the events of the Last Great Time War. Regardless of their differences, he still firmly declared he was the Doctor, seeing he had a right to the title even if Donna Noble wasn't so certain. (TV: Journey's End)

Much like the incarnation he was born from, the Doctor seemed to have a fondness for a certain word, as he used the uncommon adjective "Wizard" to describe something abnormal multiple times. (TV: Journey's End, AUDIO: The Siege of Big Ben)

Jackie Tyler thought that he was "a lot less rational" than the original Doctor as he often rushed into things without thinking it through. She also felt that he was less willing to forgive than the original Doctor; when Christa attempted to force him to use a time machine to save her daughter, the Doctor allowed her to get arrested after she was talked down where Jackie felt that the true Doctor would have let her off as having just made a mistake. (AUDIO: The Siege of Big Ben)

He often got headaches, as sometimes all he could think about was fire and war. When his zeppelin was crashing, the Doctor cried, telling Jackie Tyler that he loved Rose unconditionally. (AUDIO: Flight Into Hull!)

Behind the scenes

• In the Doctor Who Confidential episode End of an Era, executive producer Julie Gardner confirmed that the intention was that the new Doctor did indeed say "I love you" when he whispered in Rose's ear.
• On screen, this character was only ever referred to as the Doctor. To avoid confusion, fans took to referring to him by names such as the New Doctor, Meta-Crisis Doctor, Ten II, Tentoo, the human Doctor, Doctor 10.5, Tenth Doctor Duplicate, Doctor/Donna, John Noble and Handy. None of these names are considered official, particularly references to him as the Eleventh Doctor. In the shooting script for the episode, he is simply named as "THE DOCTOR #2". David Tennant in Doctor Who Confidential acknowledged that the name of this particular incarnation of the character was expected to be a topic of much debate as time went on.
  • As recently as March 28th, 2018, official social media accounts for Doctor Who have referred to this incarnation by the fandom name "Tentoo".
  • Since April 17, 2014, the game Legacy uses "Meta-Crisis Tenth Doctor".
  • The Target Storybook short story The Turning of the Tide finally revealed that the new Doctor chose, shortly after the events of Journey's End, to go by the name Corin.
• A number of fans have speculated whether Corin would eventually become the Valeyard, which was referenced in the comic story The Forgotten, in which Es'Cartrss took the form of a bearded Tenth Doctor claiming to be both Corin and the Valeyard, though the Tenth Doctor himself found the idea unbelievable.
• The concept that a Doctor would grow from the Doctor's severed hand who would end up with Rose was planned since The Christmas Invasion. Russell T Davies states on the commentary track for Journey's End that he had the idea in mind that just prior to the Tenth Doctor's regeneration, a scene would depict him growing a clone of himself from his severed hand, and sending him off to live his life with Rose. The concept was ultimately brought forward, and was developed into its own entire story arc, due to the "timing being perfect".

A "Pete's World" TARDIS

In the original script, the Doctor was meant to give TARDIS coral to Corin, on the assumption that a whole new TARDIS could be grown from it, but it was cut. Nevertheless, the idea has popped up in several places:

• "The Doctor's Data" section of a Doctor Who Adventures magazine.
• The Fact File for the episode on the official website, which stated that it was in the original script but later removed.
• Inside the magazine, there is an excerpt of the script with a statement that this part of the scene made it all the way to the last cut, but the producers decided that it just complicated the scene too much. However, the scene was filmed and it was included in the series 4 DVD boxset. The magazine quoted Russell T Davies' opinion that the metacrisis Tenth Doctor and Rose Tyler do indeed have a piece of TARDIS coral, which they can use to grow their own TARDIS.
• In Russell T Davies' book The Writer's Tale, the full original draft of the Bad Wolf Bay script has the Doctor stating that it takes "thousands of years" to grow a TARDIS. However, Donna uses her newfound Time Lord knowledge enhanced by human intuition to overcome this problem by suggesting: "...if you shatterfry the plasmic shell and modify the dimensional stabiliser to a foldback harmonic of 36.3, you accelerate growth by the power of 59!".
• In AUDIO: The Siege of Big Ben, the Doctor is growing a TARDIS in his UNIT lab.

External links

• Meta-Crisis Tenth Doctor at the Doctor Who Legacy wiki