| Person | Type | Job | Role(s) |
|---|---|---|---|
 Adele Balkan | Crew | Costume & Make-Up | Costume Design |
 C. Bakaleinikoff | Crew | Sound | Music Director |
Clem Portman | Crew | Sound | Sound |
 Ernest B. Schoedsack | Crew | Directing | Director |
Harold E. Stine | Crew | Visual Effects | Visual Effects |
Howard Richmond | Crew | Art | Assistant Art Director |
J. Roy Hunt | Crew | Camera | Director of Photography |
James Basevi | Crew | Art | Art Direction |
 John Ford | Crew | Production | Executive Producer |
John L. Cass | Crew | Sound | Sound |
Linwood G. Dunn | Crew | Visual Effects | Visual Effects |
 Mel Berns | Crew | Costume & Make-Up | Makeup Artist |
 Merian C. Cooper | Crew | Production | Producer, Story |
 Ray Harryhausen | Crew | Visual Effects | Visual Effects |
 Roy Webb | Crew | Sound | Original Music Composer |
Ruth Rose | Crew | Writing | Screenplay |
Ted Cheesman | Crew | Editing | Editor |
 Willis H. O'Brien | Crew | Visual Effects | Visual Effects |
Walter Elliott | Crew | Sound | Sound Editor |
Bert Willis | Crew | Visual Effects | Visual Effects |
 Addison Richards | Cast | Actor | Attorney (uncredited) |
 Archie Twitchell | Cast | Reporter | |
 Ben Johnson | Cast | Actor | Gregg Johnson |
 Bess Flowers | Cast | Actress | Nightclub patron (uncredited) |
 Byron Foulger | Cast | Actor | Jones (uncredited) |
 Charles Lane | Cast | Actor | Producer (uncredited) |
 Denis Greene | Cast | Crawford | |
 Douglas Fowley | Cast | Actor | Jones |
 Dwayne Hickman | Cast | Actor | Boy (uncredited) |
 Ellen Corby | Cast | Actress | Orphanage matron (uncredited) |
 Fay Wray | Cast | Actress | Woman's Scream (uncredited) |
 Frank McHugh | Cast | Actor | Windy |
 Harry Strang | Cast | Actor | Policeman with Tramp (uncredited) |
 Henry Kulky | Cast | Actor | Strong Man (uncredited) |
 Irene Ryan | Cast | Actress | Southern Belle at the Bar (uncredited) |
 Iris Adrian | Cast | Actress | Gloria (uncredited) |
 Jack Pennick | Cast | Actor | Sam (uncredited) |
 Jacqueline Dalya | Cast | Actress | Nightclub Dancer (uncredited) |
 James Flavin | Cast | Actor | Schultz |
 Joyce Compton | Cast | Actress | Alice (uncredited) |
 Kermit Maynard | Cast | Actor | Red (uncredited) |
 Lora Lee Michel | Cast | Actress | Jill (as a child) |
 Mary Field | Cast | Actress | Secretary (uncredited) |
 Nestor Paiva | Cast | Actor | Brown |
 Paul Guilfoyle | Cast | Actor | Smith |
 Regis Toomey | Cast | Actor | John Young |
 Richard Farnsworth | Cast | Actor | Cowboy (uncredited) |
 Robert Armstrong | Cast | Actor | Max O'Hara |
 Robert Tafur | Cast | Actor | Headwaiter (uncredited) |
 Terry Moore | Cast | Actress | Jill Young |
 William 'Wee Willie' Davis | Cast | Actor | Strongman (uncredited) |
 William Schallert | Cast | Actor | Gas Station Attendant (uncredited) |
 Ivan Rasputin | Cast | Actor | Strongman (uncredited) |
 Sammy Menacker | Cast | Actor | Strong Man |
 Mr. Joseph Young | Cast | Self | |
| Person | Type | Job | Role(s) |
