Confounding months of speculation, this weekend the BBC announced who will replace David Tennant as the Doctor: the almost completely unknown Matt Smith, who is best known for his acting chops on the stage rather than the screen. (On a side note, the bookmaker firm Paddy Power, which took in $58,000 worth of bets on who might be cast, has indicated the name may have leaked early based on late betting patterns). So what do you think? Does Smith look like he has what it takes to be the 11th Doctor? What do you think makes for a good Doctor anyway?