James Gilmore "Jim" Backus (February 25, 1913July 3, 1989) was an American radio, television, film, and voice actor. He's mostly known for his role as Thusrton Howell III in CBS's sitcom Gilligan's Island.

His Disney roles include Milton in the animated short Plutopia, The Mayor in Pete's Dragon and Timothy Forsythe in Now You See Him, Now You Don't.

He also hosted the Mouse Factory episodes "Homeowners", "Paul Bunyan" and "Homes" and his acknowledgement of being the original voice of Mr. Magoo appeared in the 1997 live-action film adaptation of Mr. Magoo.