David Thewlis is an English actor. His acting career started in the 1980s. His performance in the 1993 film Naked won him the Best Actor award at Cannes Film Festival. He has since had notable roles in the films Dragonheart, The Big Lebowski, and Timeline. He became further known when he played the part of Remus Lupin in Harry Potter and the Prisoner of Azkaban, a role he has since reprised in the sequels. Other notable roles were in Kingdom of Heaven, The New World, Basic Instinct 2, and The Boy in the Striped Pajamas. In the 2010s, he starred in War Horse and The Theory of Everything, among others. He has recently played Sir Patrick Morgan / Ares in Wonder Woman.