An English actor known for his roles as John in Love Actually, Tim Canterbury in the BBC's Golden Globe-winning comedy The Office, Arthur Dent in the film adaptation of Douglas Adams' The Hitchhiker's Guide to the Galaxy, Dr. John Watson in Sherlock and Mr. Madden in Nativity. MOre recently he has had the lead role of Bilbo Baggins in Peter Jackson's two-part adaptation of The Hobbit.