David Thewlis is an actor, writer, and director. He has appeared in numerous films, including Paul Auster's The Inner Life of Martin Frost, The Omen, Kingdom of Heaven, Seven Years in Tibet, The Big Lebowski, Gangster No. 1, and Naked (directed by Mike Leigh), for which he won Best Actor prize at the Cannes Film Festival. He has also appeared as Professor Remus Lupin in Harry Potter and the Prisoner of Azkaban, Harry Potter and the Order of the Phoenix, Harry Potter and the Half-Blood Prince, and Harry Potter and the Deathly Hallows. Thewlis is originally from Blackpool, England. This is his first novel.