 He appeared in "Kick-Ass 2" (2013) and "Guardians of the Galaxy" (2014).In "The Theory of Everything", he portrayed astrophysicist Kip Thorne.In 2015 he joined the cast of the HBO series "Game of Thrones" in Season 5 as Yezzan zo Qaggaz,; he also appeared in the BBC series "Jonathan Strange & Mr Norrell" in the role of Childermass.