Answer by
traumatised (3285)
One feature of the Doctor's character is that he can regenerate 13 times to avoid death. So far there have been several TV incarnations: William Hartnell, Patrick Troughton, Jon Pertwee, Tom Baker, Peter Davison, Colin Baker, Sylvester McCoy, Paul McGann, Christopher Eccleston, David Tennant and Matt Smith (as of the next series). Others have played him on radio/specials.