Patrick O'Kane is a British/Irish actor who was born in 1965 in Belfast, Northern Ireland. He attended St Malachy's grammar school where he discovered a love of acting and then attended Manchester University, graduating with double honours in Drama and English. This was followed by training at the Central School of Speech and Drama. He has been part of the companies of the Royal National Theatre, where he appeared in The Playboy of the Western World and Peer Gynt, and the Royal Shakespeare Company, where he played the title role in Macbeth. At the Royal Exchange Theatre, Manchester, he gave an "eye-catching", "triumphant" performance in the title role of Christopher Marlowe's Doctor Faustus in 2010.
In London's West End, he has appeared in War Horse. He played John Proctor in the Lyric Theatre, Belfast's production of Arthur Miller's The Crucible, opening the theatre's new performance space in April 2011 to rave reviews and receiving a nomination for best actor in the Irish Theatre Awards for his performance.