The 6th Doctor

Time Zone: March 22nd, 1984 – December 6th, 1986
Played By: Colin Baker

The Sixth Doctor was an unpredictable egotist, whose garish, multicoloured attire reflected his volatile personality. However, not only did his melodramatic arrogance and caustic wit eventually subside, it actually hid the fact that he had a strong moral sense and a heart of gold (glimpsed at in Revelation of the Daleks, in which he shows great compassion to a dying mutant).

The Sixth Doctor's regeneration was initially unstable, and he nearly strangled Peri in a psychotic rage before he came to his senses. He encountered many old foes including the Master, Daleks, Cybermen and Sontarans, the latter of whom he defeated by teaming up with his own Second Incarnation. Later, the Doctor was put on trial for the second time by his own race. The prosecutor at that trial, the Valyard, turned out to be a possible future, and evil, incarnation of the Doctor himself. The events of the trial tangled the Doctor's timeline slightly, as he left in the company of Mel, a future companion whom he had technically not yet met.