His career began when he was an announcer for the Brooklyn Dodgers. Forsythe's movie career began in 1943 in the movie "Northern Pursuit" and since then he had appeared in many movies such as; "Destination Tokyo", "Escape from Fort Bravo", "Madame X", "Topaz", "Scrooged", and his final movie was the 2003 movie "" that is the sequel to the movie that is based on the television series "Charlie's Angels" in which Forsythe starred in. 