David Mitchell and his wife Victoria Coren will reportedly feature in this week's special episode of Gogglebox in aid of Stand Up To Cancer.
The episode will see a number of famous faces appear alongside the show's regulars for a look back over the week's TV highlights.
According to the Daily Star, the comedians signed up to appear on the show and filmed their scenes last weekend.
"Producers are always on the lookout for new faces to join Celebrity Gogglebox and they are so pleased to have David and Victoria on board," a source told the newspaper.
"They both have big followings so this will be great for the show."
Other celebs taking part in the show include the cast of Line of Duty, comedian Mo Gilligan and The Who's Roger Daltrey.