Michael Burns as Jeff 'Moondoggie' Stevens

Monie Ellis as Gidget Lawrence

Don Ameche as Otis Ramsey

Joan Bennett as Claire Ramsey

Corinne Camacho as Nancy Lewis

Macdonald Carey as Russ Lawrence

Elinor Donahue as Medley Blaine

Paul Lynde as Louis B. Latimer

Roger Perry as Tom Blaine

Gene Andrusco as Vince Blaine

Radames Pera as Bob Ramsey

Tiger Williams as Richie Coleman

Dennis Fimple as Policeman

Ivor Barry as Maitre 'D

Burke Byrnes as Minister

Larry Gelman as Anatole

Helen Funai as Minnie Chan

Joseph Bernard as Furniture Man

Victoria Paige Meyerink as Janie

Jimmy Bracken as Andy

Michael Barbera as Chris

Susan Spell as Little Girl

Nicolas Beauvy as Gregg

James B. Sikking as Jim Johnson

Virginia Hawkins as Mrs. Johnson

William Gray Espy as Chuck

Judith McConnell as Ann

Larry Delaney as John

Tom Anfinsen as Restaurant Patron (uncredited)