John Simm

John Ronald Simm (born 10 July 1970) is an English actor, director, and musician. He is best known for playing Sam Tyler in ''Life on Mars'', the Master in ''Doctor Who,'' and DS Roy Grace in ''Grace.'' His other television credits include ''State of Play'', ''The Lakes'', ''Crime and Punishment'', ''Exile'', ''Prey'', and ''Cracker''. His film roles include ''Wonderland'', ''Everyday'', ''Boston Kickout'', ''Human Traffic'' and ''24 Hour Party People''. He has twice been nominated for the BAFTA Award for Best Actor Provided by Wikipedia