Nick Fros on this year's 'Doctor Who' Christmas episode

Production on the 2014 Doctor Who Christmas episode has begun with Nick Frost, Michael Troughton, Faye Marsay, Natalie Gumede and Nathan McMullen to appear as guest stars, BBC America said Friday.
No details have been revealed regarding the special's setting or plot, or what characters the guest stars will play.
"I'm so thrilled to have been asked to guest in the Doctor Who Christmas special," Frost said in a statement Friday.
"Frost at Christmas -- it just makes sense!" added Steven Moffat, the science-fiction show's lead writer and executive producer. "I worked with Nick on the Tintin movie many years ago and it's a real pleasure to lure him back to television for a ride on the TARDIS."
Frost is best known for his work in the films The World's End, Hot Fuzz and Shaun of the Dead.
Troughton's father Patrick played the second incarnation of the titular time-traveler on Doctor Who. Current star Peter Capaldi is the 12th actor to play the role.