In the 45-year history of the BBC science-fiction series Doctor Who, ten different actors have played The Doctor (not counting big-screen movies, one-off charity specials, stage shows or audio dramas). Can you name all ten before time runs out? (Actors' last names only.)

[Hint: We'll give you two of them. Tom Baker & Colin Baker. They're not related. For these two, you'll have to enter their first and last names.]