Official Trailer For Doctor Who‘s “Last Christmas” Features Ominous Messages, Saucy Santa I will never get over that "who you gonna call." By Carolyn CoxDec 11th, 2014, 1:50 pm So are we taking bets on Clara leaving now, or… Are you following The Mary Sue on Twitter, Facebook, Tumblr, Pinterest, & Google +?Have a tip we should know? [email protected] Filed Under: BBCBBC AmericaDoctor WhoDoctor Who Christmas SpecialNick Frost Follow The Mary Sue: Join the Conversation