John Simm is a British actor known for his versatile performances in television, film, and theater. He gained widespread recognition for his role as Sam Tyler in the popular TV series Life on Mars, which aired from 2006 to 2007. Simm has also appeared in other notable shows, including Doctor Who and The Lakes. In addition to his television work, Simm has acted in films such as 24 Hour Party People and The Devil's Whore. He has received critical acclaim for his performances and has been nominated for various awards throughout his career, showcasing his talent and dedication to the craft of acting.