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)