Well, is he!?

And the answer is… Kind of…

George Clooney is set to star in a sketch for a charity Christmas special Downton Abbey.

The superstar will be making a one-off appearance alongside the cast of the show, which is all part of the televised charity appeal.

“This is the biggest moment in Downton Abbey history and shows it’s now the biggest drama in the world,” a source close to the project reportedly said.

He’s already filmed his scenes for the sketch – and he keeps his American accent!

We can’t wait to see it!

Love this? You’ll love this bit from Will & Woody – catch the boys weekdays from 4PM on KIIS 1065