John Arthur Duttine (born 15 March 1949) is an English actor noted for his roles on stage, films and television. He is well known for his role as Sgt George Miller in Heartbeat, Bill Masen in the TV series The Day of the Triffids and David Powlett-Jones in To Serve Them All My Days. He is married to the actress Mel Martin and his nephew is the actor Joe Duttine.