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