Paramutual Pictures wants to know where all the money is going so they hire Morty to be their spy. Morty works for Mr. Sneak and gets a job in the mail room so that he can have access to the lot. But all that Morty ever finds is that he can cause havoc no matter what he does.
| Directing | Jerry Lewis | Director |
| Writing | Jerry Lewis | Writer |
| Writing | Bill Richmond | Writer |
| Directing | Ralph Axness | Assistant Director |
| Camera | W. Wallace Kelley | Director of Photography |
| Costume & Make-Up | Edith Head | Costume Design |
| Costume & Make-Up | Sy Devore | Wardrobe Designer |
| Art | Hal Pereira | Art Direction |
| Art | Arthur Lonergan | Art Direction |
| Editing | Stanley E. Johnson | Editor |
| Art | Sam Comer | Set Decoration |
| Art | James W. Payne | Set Decoration |
| Costume & Make-Up | Wally Westmore | Makeup Supervisor |
| Costume & Make-Up | Nellie Manley | Hair Supervisor |
| Sound | Hugo Grenzbach | Sound Recordist |
| Sound | Charles Grenzbach | Sound Recordist |
| Crew | Marvin Weldon | Dialogue Coach |
| Directing | Eleanor H. Donahoe | Script Supervisor |
| Sound | Walter Scharf | Original Music Composer |
| Sound | Phil Boutelje | Music Coordinator |
| Production | Arthur P. Schmidt | Associate Producer |
| Production | Ernest D. Glucksman | Producer |
| Production | William Davidson | Production Manager |
| Sound | Leo Shuken | Orchestrator |
| Sound | Jack Hayes | Orchestrator |
| Production | Marshall Katz | Producer's Assistant |
