David Thewlis (born David Wheeler; born 20 March 1963) is an English actor, director, screenwriter, and author. His most commercially successful role to date has been that of Remus Lupin in the Harry Potter film series. Other notable performances include the films Naked (for which he won the Best Actor award at Cannes Film Festival), Dragonheart, Kingdom of Heaven, The Boy in the Striped Pyjamas, Seven Years in Tibet, The Theory of Everything, Black Beauty, Macbeth (as King Duncan) and Wonder Woman. He has also done voice work in the films James and the Giant Peach (1996), The Miracle Maker (2000), and Anomalisa (2015). Thewlis has combined major motion picture work with prominent television roles, including playing Cyrus Crabb in the television miniseries Dinotopia and antagonist V.M. Varga in the third season of Fargo.