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.
The Curse of Peladon
David Troughton is the son of Second Doctor actor Patrick Troughton. He had previously appeared in "Doctor Who" as Moor in "The War Games" (1969), and he would appear in the revived series episode entitled "Midnight" (2008). Geoffrey Toone previously appeared as Temmosus in the film "Dr. Who and the Daleks" (1965).