Chris O'Dowd starred in a comedy.
Christopher `` Chris '' O'Dowd ( born 9 October 1979 ) is an Irish actor , best known for comedic roles such as Roy Trenneman in the Channel 4 comedy The IT Crowd . O'Dowd is also known for his film roles , most notably Bridesmaids ( 2011 ) , This Is 40 ( 2012 ) , The Sapphires ( 2012 ) , Thor : The Dark World ( 2013 ) , Calvary ( 2014 ) , and St. Vincent ( 2014 ) . The IT Crowd is a British sitcom by Channel 4 , written by Graham Linehan ( who also co-created and co-wrote Father Ted ) , produced by Ash Atalla and starring Chris O'Dowd , Richard Ayoade , Katherine Parkinson , and Matt Berry .