This Oct. 2, 1978 file photo shows the cast from left, Russell Johnson, as the professor; Jim Backus as Thurston Howell III; Natalie Schafer, as Mrs. Howell III; Alan Hale Jr., as the skipper; Bob Denver, as Gilligan; Judith Baldwin replacing Tina Louise, as Ginger, and Dawn Wells, as Mary Ann. (AP Photo/Wally Fong, File)