Fourth Doctor
Biography
After his regeneration, he seemed to be in a hurry to leave Earth, but was eventually persuaded to stay and help Brigadier Lethbridge-Stewart deal with Think Tank and their K1robot. The Fourth Doctor took Sarah Jane Smith and Harry Sullivan to travel with him in the TARDIS. Harry decided to leave and Sarah Jane to continue on with him. But he rarely returned to UNIT during this incarnation, although he often visited Earth in the the [[20th century].
Recieving a distress call from Gallifrey, he returned Sarah to Earth ("The Hand of Fear"), the Fourth Doctor travelled to his homeworld in order to defeat an unknown menace, in fact, the Master("The Deadly Assasin"). The Doctor travelled for an unknown period of time alone. On her native jungle world, he met the acquaintance of Leela of the Sevateem ("The Face of Evil") and, together, travelled with the former pet of Professor Marius, the dog-shapedrobotknown as K-9.
Returning to Gallifrey, the Fourth Doctor, presenting himself as vainglorious and powermad, attained the office for Lord President and defeated a scheme to invade Gallifrey by two separate factions, the Vardans and the Sontaranswith which he had pretended to ally himself. Leela decided to remain on Gallifrey with Andred, a Gallifreyan in the Chancellory Guard]. However, he left the Capitol with K-9 Mark II. ("The Invasion of Time".)
The White Guardian sent him on a quest to locate and assemble the pieces of the Key to Time.
Struggling with the Master, he fell off the Pharos Project radio telescope down the ground hundreds of feet below. The mysterious entity known as the Watcher, which had been tracked him through time and space, then merged with him and he regenerated.
Characteristics
The Fourth Doctor was something of a cross between Willy Wonka and the Mad Hatter, rarely without his signature scarf of incredible length. He was perhaps the most eccentric incarnation.
Habits and Quirks
Mysteries and Discrepancies
- The Fourth Doctor visited Leela's home planet, presumbably alone, encountered the supercomputer Xoanaon and inadvertantly installed in him a program copied from his own personality ("The Face of Evil"). We do not know at what time in the Fourth Doctor's life this event occured or the reason why, later, he would fail to remember his adventure. One popular theory for the amnesia explains that this adventure as happening very early in his life {"Robot"), at which point he still suffered from post-regenerative trauma.
