Over on a Canadian AM chat show Your Morning, Peter Capaldi and Steven Moffat revealed a little something about this year’s Doctor Who Christmas special. Namely, that it will feature Justin Chatwin (Orphan Black, American Gothic) as an unnamed “superhero”.

“We’ve got a wonderful Canadian actor – Justin Chatwin – who’s in it. ” said Capaldi, as reported by Digital Spy. “We just finished filming it on Friday. It’s very festive. I don’t know quite what I can say about it!” continued Capaldi.

“Justin is a superhero – as all Canadians are,” added Steven Moffat.

We’ll bring you more news on this year’s Christmas Special as it arrives.