Over all these years it's kind of surprising that the U.S. hasn't made their own version of Doctor Who. I doubt it would have ever been as good, but it's hard to know because it has never happened. In case you were wondering what American actors might have starred as the Doctor over the years, Tumblr blogger Smug Mode imagined what the 13 incarnations of The Doctor might have looked like as an American series. This is a fun "what if?" scenario to help spark a discussion among fans of the classic sci-fi series. Are there any other American actors you think would have made good Doctors?