Matthew Macfadyen (born 17 October 1974) is a British actor, known for his role as MI5 agent Tom Quinn in the BBC television drama series Spooks (also known as MI-5) and for starring as Fitzwilliam Darcy in the 2005 film version of Pride and Prejudice.
After having studied at the RADA from 1992 to 1995, Macfadyen quickly became a well-known actor in British theatre due primarily to his work with the stage company Cheek by Jowl, for whom he played Antonio in The Duchess of Malfi, Charles Surface in The School for Scandal, and Benedick in Much Ado About Nothing. His Benedick was particularly memorable, played as an officer-class buffoon with a moustache and a braying laugh. In 2005, he played to further great acclaim the part of Prince Hal in Henry IV, Parts One and Two at the Royal National Theatre, with Michael Gambon in the lead. In 2007, he returned to the stage, portraying an American, Clay, a stay at home father with a liberal attitude in the play The Pain and the Itch.