Morbius (The Vengeance of Morbius)
When it is learned that I, Morbius, have returned from the grave. My followers will rise in their millions!
Morbius of House Dvora was a high-ranking Time Lord whose career was the first in millennia to dramatically alter Gallifrey's relationship to the wider universe, briefly moving the world's policy away from observation and manipulation of external affairs and instead towards brutal restructuring of the universe to suit Gallifrey's best interests (DW:The Brain of Morbius, FP:The Book of the War). The Doctor became embroiled in the chaos that resulted (PDA: Warmonger).
His career ended in ignominy and destruction, and he escaped a sentence of death only by means of a secret brain transplant, subsequent to which he encountered the fourth incarnation of the Doctor. (DW:The Brain of Morbius).
The Imperator Crisis
One of the most despicable, criminally minded wretches to have ever lived.
Morbius' ambition led him to become the head of the High Council, where his warlike nature led him to urge the Time Lords toward a policy of conquest (DW: The Brain of Morbius), demanding the Laws of Time and structure of the universe be redrawn to better suit Gallifrey's needs (FP: The Book of the War).
While still based on Gallifrey he formed a personal army composed of both dedicated followers and mercenaries from other species. He promised these followers the secrets of time travel and immortality (DW: The Brain of Morbius) although withheld from them true admission into his House (FP: The Book of the War). During his search for immortality he utilised both the time scoop and the Death Zone drawing seven incarnations of Iris Wildthyme to play the Games of Rassilon in an attempt to gain Rassilon's gift of immortality, though this attempt was ultimately thwarted. (EDA: The Scarlet Empress)
When the Time Lords, spurred by the Order of the Weal (FP: The Book of the War), eventually denounced him, he and his followers abandoned Gallifrey and began an assault on the cultures of the external universe (DW: The Brain of Morbius).
As Gallifrey's society struggled to understand these inconceivable events, the long-term cultural changes brought about would include the increased influence of the Celestial Intervention Agency and the founding of House Paradox (FP: The Book of the War).
War with The Alliance
Can you understand a thousandth of my agony? I, Morbius, who once led the High Council of the Time Lords, reduced to this - to the condition where I envy a vegetable.
Unsure how to respond to the physical campaign of conquest Morbius was waging against the universe (FP: The Book of the War) the Time Lords eventually chose to fight the war by proxy (PDA: Warmonger).
The fifth incarnation of the Doctor, who had travelled into Gallifrey's past, was appointed 'Supreme Coordinator of the Alliance Battle Fleet' and directed an unlikely army of Humans, Draconians, Cybermen, Ogrons, Ice Warriors and Sontarans against Morbius (PDA: Warmonger).
Planets involved in the conflict included Fangoria, Romark, Darkeen, Martak and Freedonia which provided troops for Morbius, and Sylvana, Zandir, Tanith and Electra which fell to him (PDA: Warmonger).
The Alliance eventually defeated Morbius on Karn with the assistance of the Sisterhood and brought to trial, although the verdict had been decided in advance (PDA: Warmonger). The sentence of death by public and ceremonial disintegration was partly a panicked attempt by the Time Lords to caution the universe at large against opposing them (FP: The Book of the War).
His body was indeed destroyed, with Sisterhood leader Maren among those attending. However, Morbius escaped death when one of his followers, the human surgeon Doctor Mehendri Solon, secretly removed the Gallifreyan criminal's brain before his disintegration.
Taking the brain, Solon went into hiding on Karn, where he began planning to build a new body for Morbius. The Sisterhood's means of defending the Elixir of Life was to cause nearby spacecraft to crash, this provided a regular supply of corpses from which Solon scavenged body parts for this project (DW: The Brain of Morbius).
Morbius' Brain
Solon designed this body for efficiency, not for appearance. To be free again is all that matters.
Landing on Karn, the Doctor and Sarah Jane Smith stumbled upon Solon's castle just as Morbius' new body neared completion. The Doctor recognised Morbius' telepathic brain pattern despite, at this point in his timeline, not having previously met Morbius in person.
Morbius's new body was horrifyingly grotesque, leading the Doctor to mock him as "Chop Suey, the Galactic Emperor!" but Solon's ability to merge alien tissues offered some advantages, including lungs from a Birastrop capable of withstanding cyanide. Other parts of Morbius' body included a human left hand from Solon's unknowing assistant Condo, a giant lobster-like right hand, and a humanoid torso.
Yet the new body lacked one important element, a suitable vessel for carrying the unique and delicate properties of a Time Lord brain. The head of another Time Lord was required, but when plans to use the Doctor's head failed and the container that had been so far holding the brain was spilled, Solon resorted to an unproven, experimental braincase which included two stalk-like eyes.
This braincase was prone to developing a static charge, a weakness the Doctor exploited by challenging Morbius to a Time Lord mindbending contest. It is not at all clear who won the contest, but it was costly for both Gallifreyans. The Doctor collapsed from the strain, and Morbius' brain appeared to be damaged by a static shock.
There exists some ambiguity surrounding the faces which appear during the mind bending contest.
After the battle, Morbius appeared to be left in a dazed, animalistic state. He did not speak again, and only uttered seemingly agonised sounds of anger and pain. Leaving Solon's castle, he was chased by the Sisterhood. He was then surrounded half way up the mountain and accidently fell backwards down the mountain and apparently to his death. (DW: The Brain of Morbius).
Vengeance
Zardodnix developed a fascination with Morbius similar to that of Solon and revived him by drawing power from the heart of the Doctor's TARDIS and making the Doctor resurrect Morbius. The Doctor is forced to accept and Morbius is brought back to life and is ready to take his Vengeance. (BFA: Vengence of Morbius)