George Clooney swaps Hollywood for Highclere Castle as he is seen for the first time on the set of Downton Abbey, alongside co-star Hugh Bonneville.
Recently-married George has filmed a special spin-off sketch for the hit period drama for ITV's annual Text Santa appeal, to be screened later this month.
In the first images to be released from the programme, the pair - who previously worked together on the film The Monument Men - are seen with a clapperboard in front of a Christmas tree.
George's co-stars have previously said they were unsure he would be appearing until he turned up on set for the drama, which is filmed at the Highclere estate in Hampshire.
Actress Laura Carmichael has also spoken about how the Gravity actor is seen planting a kiss on the Dowager Countess, played by Dame Maggie Smith, during his appearance, which prompts her to swoon.
Laura said: "George plants a kiss and Maggie ends up on the floor, it's wonderful. He was hilarious."
Hollywood star George married British human rights lawyer Amal Alamuddin in a private ceremony in Venice in September.
The first video clip of Clooney in action was broadcast tonight as part of Phillip's 24 Hour Live TV Marathon on ITV 3 tonight, during the Text Santa fundraiser.
Viewers can donate to the fund, which has seen presenter Phillip Schofield take part in a 24-hour live broadcast across ITV's channels, at www.justgiving.com/textsanta
The full sketch is scheduled for broadcast on December 19 at 8pm on ITV.