| Person | Type | Job | Role(s) |
|---|---|---|---|
 Arthur Piantadosi | Crew | Sound | Sound |
Ben Lane | Crew | Costume & Make-Up | Makeup Supervisor |
Charles J. Rice | Crew | Sound | Sound Supervisor |
David Davis | Crew | Writing | Story |
 Dick Stabile | Crew | Sound | Original Music Composer |
Frank Tuttle | Crew | Art | Set Decoration |
 George Marshall | Crew | Directing | Director |
Guy C. Verhille | Crew | Costume & Make-Up | Wardrobe Designer |
Hazel W. Hall | Crew | Directing | Script Supervisor |
Herb Wallerstein | Crew | Production | Unit Production Manager |
 Jerry Lewis | Crew | Production | Producer |
John Beckman | Crew | Art | Art Direction |
Rod Amateau | Crew | Writing | Screenplay, Story |
Russel Wiles | Crew | Editing | Editor |
Virginia Jones | Crew | Costume & Make-Up | Hairstylist |
W. Wallace Kelley | Crew | Camera | Director of Photography |
Joe Luciano | Crew | Editing | Assistant Editor |
Richard M. Rubin | Crew | Art | Property Master |
Al Overton | Crew | Sound | Sound |
Jack Stone | Crew | Costume & Make-Up | Makeup Artist |
Joe E. Stabile | Crew | Production | Associate Producer |
Hal Bell | Crew | Directing | Assistant Director |
 Alberto Morin | Cast | Actor | Portuguese Passport Official (uncredited) |
 Anne Francis | Cast | Actress | Nancy Ingersoll |
Artie Lewis | Cast | Actor | Toothpick Man (uncredited) |
 Byron Foulger | Cast | Actor | Funeral Director (uncredited) |
 Eleanor Audley | Cast | Actress | Mrs. Durham |
Felipe Turich | Cast | Actor | Foreign Mortician |
 Frankie Darro | Cast | Actor | Delivery Man (uncredited) |
 Harlan Warde | Cast | Actor | District Attorney (uncredited) |
 Henry Corden | Cast | Actor | Kenyon Hammercher |
 Jennifer Edwards | Cast | Actress | Jennifer Ingersoll |
Jerry Lewis | Cast | Actor | Peter J. Ingersoll / Fred Dobbs |
 John Stacy | Cast | Actor | Surgeon (uncredited) |
 Kathleen Freeman | Cast | Actress | Mrs. Hardtack - Baby Sitter |
Margaret Teele | Cast | Actress | Nurse Susan (uncredited) |
 Norman Leavitt | Cast | Actor | Dr. Everson (uncredited) |
 Pedro Gonzalez Gonzalez | Cast | Actor | Perfecto |
 Peter Lawford | Cast | Actor | Dr. Scott Carter |
 Phillip Pine | Cast | Actor | Head Surgeon |
 Scatman Crothers | Cast | Actor | The Corpse (uncredited) |
 Sylvia Lewis | Cast | Actress | Karlotta Hammercher |
 William O'Connell | Cast | Actor | Hotel Clerk (uncredited) |
 Al Bain | Cast | Actor | Burial Spectator (uncredited) |
Jimmy Miller | Cast | Jimmy Ingersoll | |
 Anthony Larry Paul | Cast | Actor | Credit Card Man (uncredited) |
Ted Smile | Cast | Arm Wrestler (uncredited) | |
| Person | Type | Job | Role(s) |
