Rob James-Collier has been confirmed for upcoming ITV1 costume drama Downton Abbey.
The actor, who played Liam Connor in Coronation Street, has been cast alongside Dame Maggie Smith.
Collier also joins Benidorm actress Siobhan Finneran, Joanne Froggatt, Hugh Bonneville, Penelope Wilton and Jim Carter.
The drama, said to be a subtle remake of Upstairs, Downstairs, has been written by Oscar-winning scribe Julian Fellowes.
Fellowes told What's On TV: "In 1912, England was teetering on the brink. Apparently placid, still rooted in the traditions of many centuries, it would be less than ten years before the First World War and the Jazz age had ripped every certainty to shreds.
"This is the moment when we enter the world of Downton Abbey, the great house of a great family, where the Granthams and their daughters preside over a household in the charge of Carson, the butler, and Mrs Hughes, the housekeeper. All these people must, in their different ways, deal with the changes that are coming."
ITV's director of drama Laura Mackie said: "We're delighted with the stellar cast who have come together for Downton Abbey. It's testament to the quality of Julian's wonderful scripts and the calibre of the production team that some of the brightest and best of the UK's leading actors have come on board."
The show, which is seven episodes long, plans to launch with a special 90-minute film in the autumn.