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.
Last Christmas (Doctor Who)
In September 2014 announcements were made for a number of the guest cast, including Michael Troughton, Nick Frost, Nathan McMullen, Natalie Gumede and Faye Marsay. Michael Troughton is the younger son of Patrick Troughton, who played the Second Doctor from 1966 to 1969, and the younger brother of David Troughton, who appeared in "The War Games", "The Curse of Peladon" and "Midnight".