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.
Sylvester McCoy
Sylvester McCoy (born Percy James Patrick Kent-Smith; 20 August 1943) is a Scottish actor, best known for playing the seventh incarnation of the Doctor in the long-running science fiction television series "Doctor Who" from 1987 to 1989—the final Doctor of the original run—and briefly returning in a television film in 1996.