The 4th Doctor

Time Zone: December 28th, 1974 – March 21st, 1981
Played By: Tom Baker

The Fourth Doctor was a flamboyant bohemian who permanently left UNIT in order to return to a life of wandering. Despite the fact that he was incredibly charming and manic, and would often keep people offguard with his zany, irreverent humour, the Fourth Doctor was actually far more aloof and authoritative than his previous incarnations. In fact, he not only seemed more inclined towards a solitary existence (The Deadly Assassin), he also emphasised that he was not human, but rather a Time Lord with much larger concerns than the Earth. To many fans worldwide, this seemingly indestructible, scarf-wearing eccentric, who would simply laugh his enemies away, was the definitive incarnation of the Doctor.

The Doctor traveled for some time with journalist Sarah Jane Smith, whom he often called his 'best friend', but their travels together were interrupted when he received a telepathic summons to return home. He could not take Sarah with him, as humans were not allowed on Gallifrey at that point during its history.