David Thewlis (né David Wheeler; born March 20 1963) is an English actor of stage and screen. His most commercially successful role to date has been that of Remus Lupin in the Harry Potter film series. Other notable performances include his work in the films Naked (1993), Timeline (2003), Kingdom of Heaven (2005), The Omen (2006), The Boy in the Striped Pyjamas (2008), London Boulevard (2010) and War Horse (2011). He made his name known in 1993 with his performance of Johnny in Naked and with his performance of main antagonist King Einon in the 1996 film Dragonheart. He has also done voice work in the films James and the Giant Peach (1996) and The Miracle Maker (2000).