| Person | Type | Job | Role(s) |
|---|---|---|---|
 Bill Thomas | Crew | Costume & Make-Up | Costume Design |
Buddy Baker | Crew | Sound | Original Music Composer |
Carroll Clark | Crew | Art | Art Direction |
Chuck Keehne | Crew | Costume & Make-Up | Costumer |
Dean Thomas | Crew | Sound | Sound Mixer |
Edward Colman | Crew | Camera | Director of Photography |
Ellis Kadison | Crew | Writing | Screenplay |
Emile Kuri | Crew | Art | Set Decoration |
Eustace Lycett | Crew | Crew | Special Effects |
Evelyn Kennedy | Crew | Sound | Music Editor |
Hal Gausman | Crew | Art | Set Decoration |
 James Algar | Crew | Production | Co-Producer |
Joseph L. McEveety | Crew | Production | Unit Manager |
Neva Rames | Crew | Costume & Make-Up | Costumer |
Norman R. Palmer | Crew | Editing | Editor |
Pat McNalley | Crew | Costume & Make-Up | Makeup Artist |
Peter Ellenshaw | Crew | Visual Effects | Matte Painter |
 Richard M. Sherman | Crew | Sound | Songs |
Robert A. Mattey | Crew | Crew | Special Effects |
 Robert B. Sherman | Crew | Sound | Songs |
Robert O. Cook | Crew | Sound | Sound Supervisor |
 Robert Stevenson | Crew | Directing | Director |
 Upton Sinclair | Crew | Writing | Novel |
William H. Tuntke | Crew | Art | Art Direction |
Arthur J. Vitarelli | Crew | Directing | Second Unit Director |
La Rue Matheron | Crew | Costume & Make-Up | Hairstylist |
Paul Cameron | Crew | Directing | Assistant Director |
Wayne Robinson | Crew | Sound | Orchestrator |
 Byron Foulger | Cast | Actor | Hotel Desk Clerk (uncredited) |
 Cami Sebring | Cast | Actress | Violet |
 Charles Lane | Cast | Actor | Dr. Scoggins |
 Ed Wynn | Cast | Actor | Rufus |
 Ellen Corby | Cast | Actress | Etta Pettibone (uncredited) |
 Gil Lamb | Cast | Actor | Gas Attendant |
 Jerome Cowan | Cast | Actor | Dr. Ramsey |
 Karen Dotrice | Cast | Actress | Elizabeth |
 Matthew Garber | Cast | Actor | Rodney |
 Maudie Prickett | Cast | Actress | Katie Barrett |
 Richard Deacon | Cast | Actor | Ralph Yarby |
 Sean McClory | Cast | Actor | Horatio Quaxton |
 Tom Lowell | Cast | Actor | Jasper |
 Walter Brennan | Cast | Actor | D.J. Mulrooney / Knobby |
 Norman Grabowski | Cast | Actor | Male Nurse |
| Person | Type | Job | Role(s) |
