(Dead) Actors and the Doctor

While we're waiting for the big announcement: I got around to listening to David Tennant being interviewed on Broadcasting House (Dec. 21st) . Basically your standard "so, how does it feel to play Hamlet after the Doctor" interview, but two replies made me smile: one to the question whether he wants to play James Bond (which was basically "no way, and also, no, but a Bond villain would be fun"), and the other as to which dead actor he'd regard as great casting for the Doctor. The interviewer boringly suggested Laurence Olivier. David T., bless his fannish heart, politely let that pass and came up with Charles Laughton instead. Which instantly made me wish for a time travel device of my own, because YES. Charles Laughton would have done great and original things with the Doctor.

It also made me wonder: which dead and gone actor would you regard as good Doctor casting?