Second Doctor
The Second Doctor is an incarnation of the Doctor, the protagonist of the BBC science fiction television series "Doctor Who". He was portrayed by character actor Patrick Troughton.
Michael Gough
Gough guest-starred in "Doctor Who", as the titular villain in "The Celestial Toymaker" (1966) and also as Councillor Hedin in "Arc of Infinity" (1983). He also played the automation-obsessed, wheelchair-bound Dr. Armstrong in "The Cybernauts", one of the best remembered episodes of "The Avengers" (1965), returning the following season as the Russian spymaster Nutski in "The Correct Way to Kill". He was introduced in the first-season episode "Maximum Security" of "Colditz" as Major "Willi" Schaeffer, the alcoholic second-in-command of the Kommandant (Bernard Hepton). In the Ian Curteis television play "Suez 1956" (1979), he portrayed Prime Minister Anthony Eden. In 1981, he was reunited with Laurence Olivier in Granada Television's "Brideshead Revisited", portraying the doctor to Olivier's dying Lord Marchmain. Gough also appeared in "The Citadel" (1983) as Sir Jenner Halliday, in 1985's "Out of Africa" as Lord Delamere and as the fictional deposed KGB spymaster Andrei Zorin in "Sleepers".