17:07 25 November 2015
The producers of Doctor Who have confirmed that Little Britain's Matt Lucas and The Inbetweeners' star Greg Davis will join the show's Christmas episode.
While Lucas will play a character called Nardole, Cuckoo star Davies will play King Hydroflax.
The BBC has released the synopsis that said: "It's Christmas Day on a remote human colony and the Doctor is hiding from Christmas Carols and Comedy Antlers."
"But when a crashed spaceship calls upon the Doctor for help, he finds himself recruited into River Song's squad and hurled into a fast and frantic chase across the galaxy."
As for the characters that will be played by British comedians Lucas and Davies, the synopsis reads:
"King Hydroflax is furious, and his giant Robot bodyguard is out-of-control and coming for them all! Will Nardole survive? And when will River Song work out who the Doctor is?
"All will be revealed on a starliner full of galactic super-villains and a destination the Doctor has been avoiding for a very long time."
Meanwhile, Doctor Who boss Steven Moffat had warned the episode will not have a "lot of Christmas in it."
"The big deal is Doctor number 12 encountering River and vice versa," said Moffat. "It's strange because they're now, in our human terms, the perfect couple. They're both sexy older people.
"It's always been slightly strange before with Matt Smith. Now they could actually be married. It works."