The Doctor (Doctor Who) and therefore cannot be spoken. The character played by Peter Cushing in the films "Dr. Who and the Daleks" and "" referred to himself as "Dr. Who". However, these films are not considered part of the same narrative continuity as the television programme, as they were based upon two television serials featuring William Hartnell and made considerable alterations to the characters of the Doctor and his companions. Quite apart from his name, why the Doctor uses the title "The Doctor" has never been fully explained on screen. The Doctor, at first, said that he was not a physician, often referring
Doctor Who and the Silurians "mistake" from happening again. Actor Paul Darrow would return to the series playing Tekker in "Timelash" (1985), and he also appeared in the audio play "The Next Life". Geoffrey Palmer who played Masters also appears in "The Mutants" (1972) and in "Voyage of the Damned" (2007). Peter Miles later played Professor Whitaker in "Invasion of the Dinosaurs" (1974) and Nyder in "Genesis of the Daleks" (1975). He also played Tragan in the radio drama "The Paradise of Death" and Gantman in the audio play "Whispers of Terror". Norman Jones had previously appeared as Khrisong in "The Abominable Snowmen" (1967) and