Dean Martin as Larry Todd

Jerry Lewis as Myron Mertz

Lizabeth Scott as Mary Carroll

Carmen Miranda as Carmelita Castinha

George Dolenz as Mr. Cortega

Dorothy Malone as Rosie

William Ching as Tony Warren

Paul Marion as Ramon Cariso / Francisco Cariso

Jack Lambert as Zombie

Tony Barr as Trigger

Leonard Strong as Shorty

Henry Brandon as Pierre

Hugh Sanders as Cop on Pier

Bess Flowers as Nightclub Patron (uncredited)

Fred Aldrich as Dockworker (uncredited)

Gertrude Astor as Man with Spaghetti's Wife (uncredited)

Chester Clute as Man with Spaghetti on Head (uncredited)

Bing Crosby as Skeleton (uncredited)

Joe Gray as Longshoreman (uncredited)

Earl Holliman as Elevator Operator (uncredited)

Bob Hope as Skeleton (uncredited)

Kenner G. Kemp as Nightclub Patron (uncredited)

Harold Miller as Nightclub Patron (uncredited)

Jane Novak as Nightclub Patron (uncredited)

Billy Daniel as Dancer

Percy Helton as Man in Hotel Hallway (uncredited)

Tom Coleman as Man in Hotel Hallway (uncredited)

Herschel Graham as Nightclub Patron (uncredited)

Lyle Latell as Ship Captain (uncredited)

Manuel París as Cuban Headwaiter (uncredited)