Stanley is a bellboy at the Fountainbleau Hotel in Miami Beach, where he performs his duties quietly and without a word to anyone. All he displays are facial expressions and a comedic slapstick style. And anything that can go wrong, does go wrong when Stanley is involved. One day, Jerry Lewis arrives at the hotel and some of the staff notice the striking resemblance.
| Directing | Jerry Lewis | Director |
| Art | Hal Pereira | Art Direction |
| Production | Jerry Lewis | Producer |
| Editing | Stanley E. Johnson | Editor |
| Sound | Walter Scharf | Original Music Composer |
| Camera | Haskell B. Boggs | Director of Photography |
| Art | Henry Bumstead | Art Direction |
| Writing | Jerry Lewis | Writer |
| Crew | Paul Whitson | Generator Operator |
| Lighting | Jack Sherman | Rigging Grip |
| Directing | Ralph Axness | Assistant Director |
| Costume & Make-Up | Sy Devore | Wardrobe Designer |
| Camera | Glen E. Richardson | Still Photographer |
| Sound | Charles Grenzbach | Sound Recordist |
| Production | Edward R. Morse | Casting |
| Directing | Claire Behnke | Script Supervisor |
| Art | Sam Comer | Set Decoration |
| Art | Robert R. Benton | Set Decoration |
| Directing | James A. Rosenberger | Second Unit Director |
| Costume & Make-Up | Wally Westmore | Makeup Supervisor |
| Crew | John P. Fulton | Special Effects |
| Crew | Marvin Weldon | Dialogue Coach |
| Sound | Gene Merritt | Sound Recordist |
| Costume & Make-Up | Jack Stone | Makeup Supervisor |
| Production | Ernest D. Glucksman | Associate Producer |
| Production | William Davidson | Production Manager |
| Production | Arthur P. Schmidt | Producer's Assistant |
| Sound | Howard Beals | Supervising Sound Editor |
| Sound | Walter Goss | Sound Recordist |
