Date of Birth : Jul 10th 1970
John Ronald Simm (born 10 July 1970 in Leeds, West Yorkshire) is an English actor and musician. He is best known for his roles in two BAFTA award-winning BBC Wales dramas: as Sam Tyler in the detective drama Life on Mars and as an incarnation of the Master in the long-running science fiction series Doctor Who. He has also appeared in many highly-acclaimed television dramas such as The Lakes, State of Play and two BAFTA award-winning serials; Clocking Off and Sex Traffic.