Sherwood Schwartz

Bob Denver

Gilligan (voice)

Alan Hale Jr.

Captain Skipper Jonas Grumby (voice)

Jim Backus

Thurston Howell III (voice)

Natalie Schafer

Eunice Wentworth 'Lovey' Howell (voice)

Jane Webb

Ginger Grant / Mary Ann Summers (voices)

Russell Johnson

Professor Roy Hinkley (voice)

Lou Scheimer

Snubby the Monkey (voice) (uncredited)