Daniel Jonathan Stevens born October 10 1982 is an English actor He first drew international attention for his role as Matthew Crawley in the ITV acclaimed period drama series Downton Abbey 201012 He also starred as David in the thriller film The Guest 2014 Sir Lancelot in the adventure film Night at the Museum Secret of the Tomb 2014 The BeastPrince in Disneys live action adaptation of Beauty and the Beast 2017 Lorin Willis in the biographical legal drama Marshall 2017 Charles Dickens in the biographical drama The Man Who Invented Christmas 2017 and Russian Eurovision singer Alexander Lemtov in Eurovision Song Contest The Story of Fire Saga 2020 From 2017 to 2019 he starred as David Haller in the critically acclaimed FX series Legion In 2018 he starred in the Netflix horrorthriller Apostle