From Wikipedia, the free encyclopedia James Gilmore "Jim" Backus (February 25, 1913 – July 3, 1989) was a radio, television, film, and voice actor. Among his most famous roles are the voice of Mr. Magoo, the rich Hubert Updike, III on the Alan Young radio show, Joan Davis's character's husband (a domestic court judge) on TV's I Married Joan, James Dean's character's father in Rebel Without a Cause and Thurston Howell, III on the 1960s sitcom Gilligan's Island. He also starred in his own show of one season, The Jim Backus Show, also known as Hot off the Wire. An avid golfer, Backus actually made the 36-hole cut at the 1964 Bing Crosby Pro-Am tournament. Description above from the Wikipedia article Jim Backus,licensed under CC-BY-SA, full list of contributors on Wikipedia.