John Ronald Simm (born 10 July 1970) is an English actor. He has starred in many television dramas, including Life on Mars, Cracker, The Lakes, Sex Traffic, State of Play, Crime and Punishment, Exile and Prey. He has been nominated twice for the BAFTA Award for Best Actor. An accomplished stage actor, he is a Laurence Olivier Award nominee. His films include Wonderland, Human Traffic, and 24 Hour Party People. In 2010, he played Hamlet at the Crucible Theatre.