This year's special, "Last Christmas," will be airing Christmas day on BBC One at 6:15PM across the pond and BBC America at 9/8C stateside. Come to think of it, with rumors of Jenna Coleman's impending exit, the title "Last Christmas" seems a little foreboding.
Fans of the show received a sneak peak at the special during the season finale, "Death in Heaven," when Nick Frost showed up in the TARDIS dressed as Santa Claus. Who, by the way, is perfect for this role in every single way. Frost will be returning as Saint Nick to join Clara and the Doctor for their (alleged) last adventure. Trapped on an Arctic base (i.e the North Pole), the trio set out to help a group of scientists that are under a deadly, alien attack. Making an appearance in the episode will be Patrick Troughton's son, Michael Troughton, as Professor Albert.
Showrunner Steven Moffat promises that he hasn't lost his mind, but freely admits that this is the craziest episode he has written. In an interview with Radio Times, he says "It's The Thing meets Miracle on 34th Street – the movie we've all been waiting for. It's certainly the strangest bloody thing I've ever written." He doesn't want fans to write the episode off, however, saying "I sense that the very people who think they might hate this, won't hate it at all. Of all the Christmas specials I've done, it's the one most like the paradigm Doctor Who episode."