| Person | Type | Job | Role(s) |
|---|---|---|---|
 Albert Nozaki | Crew | Art | Art Department Assistant |
Arthur P. Schmidt | Crew | Editing | Editor |
 Edith Head | Crew | Costume & Make-Up | Costume Design |
Edwin Balmer | Crew | Writing | Novel |
Gene Merritt | Crew | Sound | Sound Recordist |
 George Pal | Crew | Production | Producer |
Hal Pereira | Crew | Art | Art Department Manager |
 John F. Seitz | Crew | Camera | Director of Photography |
Leith Stevens | Crew | Sound | Original Music Composer |
 Michael D. Moore | Crew | Directing | Assistant Director |
Philip Wylie | Crew | Writing | Novel |
Ross Dowd | Crew | Art | Set Decoration |
 Rudolph Maté | Crew | Directing | Director |
 Sam Comer | Crew | Art | Set Decoration |
 Sydney Boehm | Crew | Writing | Screenplay |
W. Howard Greene | Crew | Camera | Director of Photography |
 Wally Westmore | Crew | Costume & Make-Up | Makeup Artist |
Walter Oberst | Crew | Sound | Sound Recordist |
 Barbara Rush | Cast | Actress | Joyce Hendron |
 Estelle Etterre | Cast | Actress | Traveler (uncredited) |
 Frank Cady | Cast | Actor | Harold Ferris |
Gay Nelson | Cast | Leda (uncredited) | |
Gene Collins | Cast | Actor | Newsdealer (uncredited) |
 Gertrude Astor | Cast | Actress | Traveler (uncredited) |
 Hayden Rorke | Cast | Actor | Dr. Emery Bronson |
 James Congdon | Cast | Actor | Eddie Garson (uncredited) |
 John Hoyt | Cast | Actor | Sydney Stanton |
 Kirk Alyn | Cast | Actor | Rioter Bringing Guns (uncredited) |
 Larry Keating | Cast | Actor | Dr. Cole Hendron |
Marcel De La Brosse | Cast | Actor | Headwaiter (uncredited) |
 Mary Murphy | Cast | Actress | Student |
 Paul Frees | Cast | Actor | Narrator/U.S. President (voice) |
 Peter Hansen | Cast | Actor | Dr. Tony Drake |
 Rachel Ames | Cast | Actress | Julie Cummings |
 Richard Derr | Cast | Actor | David Randall |
 Sandro Giglio | Cast | Actor | Dr. Ottinger |
 Stephen Chase | Cast | Actor | Dr. George Frye |
Robert Chapman | Cast | Student (uncredited) | |
Edna Smith | Cast | Actress | |
| Person | Type | Job | Role(s) |
