Dan Stevens

Daniel Jonathan "Dan" Stevens (born 10 October 1982)[2] is an English actor. He is best known for his role as Matthew Crawley in the ITV acclaimed period drama series Downton Abbey. He also starred as David in the thriller film The Guest, Sir Lancelot in Night at the Museum: Secret of the Tomb, The Beast/Prince in Disney's live action adaptation of Beauty and the Beast, Lorin Willis in the biographical legal drama Marshall, and Charles Dickens in The Man Who Invented Christmas. Since 2017, he stars as David Haller in the FX series Legion.

https://en.wikipedia.org/wiki/Dan_Stevens