Doctor Who 1963 - Season 14, Episode 15: The Face of Evil: Part Three
Tom Baker stars as the fourth incarnation of the Doctor. He is joined by Elisabeth Sladen as companion Sarah Jane Smith until her departure in 'The Hand of Fear'. She is replaced by Louise Jameson who plays Leela. This season also saw the first story in which the Doctor did not have a companion, 'The Deadly Assassin'.