James Gilmore "Jim" Backuswas an American radio, television, film, and voice actor. Among his most famous roles were the voice of nearsighted cartoon character Mr. Magoo, the rich Hubert Updike III on the radio version of The Alan Young Show, Joan Davis's character's husbandon 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...
(wikipedia)