 | Dean Martin als Larry Todd |
 | Jerry Lewis als Myron Mertz |
 | Lizabeth Scott als Mary Carroll |
 | Carmen Miranda als Carmelita Castinha |
 | George Dolenz als Mr. Cortega |
 | Dorothy Malone als Rosie |
 | William Ching als Tony Warren |
 | Paul Marion als Ramon Cariso / Francisco Cariso |
 | Jack Lambert als Zombie |
 | Tony Barr als Trigger |
 | Leonard Strong als Shorty |
 | Henry Brandon als Pierre |
 | Hugh Sanders als Cop on Pier |
 | Bess Flowers als Nightclub Patron (uncredited) |
 | Fred Aldrich als Dockworker (uncredited) |
 | Gertrude Astor als Man with Spaghetti's Wife (uncredited) |
 | Chester Clute als Man with Spaghetti on Head (uncredited) |
 | Bing Crosby als Skeleton (uncredited) |
| Joe Gray als Longshoreman (uncredited) |
 | Earl Holliman als Elevator Operator (uncredited) |
 | Bob Hope als Skeleton (uncredited) |
 | Kenner G. Kemp als Nightclub Patron (uncredited) |
 | Harold Miller als Nightclub Patron (uncredited) |
 | Jane Novak als Nightclub Patron (uncredited) |
| Billy Daniel als Dancer |
 | Percy Helton als Man in Hotel Hallway (uncredited) |
| Hal B. Wallis | Producer |
| George Marshall | Director |
| Leith Stevens | Original Music Composer |
| Warren Low | Editor |
| Ernest Laszlo | Director of Photography |
| Norman Lear | Additional Dialogue |
| Walter DeLeon | Screenplay |
| Herbert Baker | Screenplay |
| Charles W. Goddard | Theatre Play |
| Paul Dickey | Theatre Play |
| Ed Simmons | Additional Dialogue |
| Wally Westmore | Makeup Supervisor |
| Hal Pereira | Art Direction |
| Gordon Jennings | Special Effects |
| Charles C. Coleman | Assistant Director |
| Paul K. Lerpae | Special Effects |
| Hugo Grenzbach | Sound Recordist |
| Edith Head | Costume Design |
| Ross Dowd | Set Decoration |
| Franz Bachelin | Art Direction |
| Sam Comer | Set Decoration |
| Walter Oberst | Sound Recordist |
| Joseph J. Lilley | Music Director |
| Billy Daniel | Choreographer |
