Directed by
| Herman Hoffman | ||
Writing Credits
| Cyril Hume | ... | (screenplay) |
| Edmund Cooper | ... | (story) |
Cast (in credits order) verified as complete
| Richard Eyer | ... | Timmie Merrinoe | |
| Philip Abbott | ... | Dr. Tom Merrinoe | |
| Diane Brewster | ... | Mary Merrinoe | |
| Harold J. Stone | ... | Gen. Swayne | |
| Robert H. Harris | ... | Prof. Frank Allerton | |
| Dennis McCarthy | ... | Col. Macklin | |
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Alexander Lockwood | ... | Arthur Kelvaney |
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John O'Malley | ... | Prof. Baine |
| Robby the Robot | ... | Robby | |
| Gage Clarke | ... | Dr. Bannerman | |
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Than Wyenn | ... | Prof. Zeller |
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Jefferson Searles | ... | Prof. Foster (as Jefferson Dudley Searles) |
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Alfred Linder | ... | Martin / Computer |
| Ralph Votrian | ... | 1st Gate Sergeant | |
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Michael Miller | ... | 2nd Gate Sergeant |
| Rest of cast listed alphabetically: | |||
| Rayford Barnes | ... | Capt. McLaren (uncredited) | |
| Helen Kleeb | ... | Miss Vandergrift (uncredited) | |
| Marvin Miller | ... | Robby the Robot (voice) (uncredited) | |
| Alvy Moore | ... | Scientist #4 (pranks scene) (uncredited) | |
| Gary Vinson | ... | Young soldier (uncredited) | |
Produced by
| Nicholas Nayfack | ... | producer |
Music by
| Les Baxter | ||
Cinematography by
| Harold E. Wellman | ... | director of photography (as Harold Wellman) |
Editing by
| John Faure | ... | (as John D. Faure) |
Art Direction by
| Merrill Pye | ||
Set Decoration by
| Darrell Silvera | ||
Production Management
| Gus Schroeder | ... | production manager |
Second Unit Director or Assistant Director
| Bert Chervin | ... | assistant director |
Sound Department
| Fred Lau | ... | recording supervisor |
| Cathey Burrow | ... | sound editor (uncredited) |
Special Effects by
| Irving Block | ... | special effects |
| Louis DeWitt | ... | special effects |
| Jack Rabin | ... | special effects |
Casting Department
| Lynn Stalmaster | ... | casting supervisor |
Music Department
| Les Baxter | ... | conductor |
| Albert Harris | ... | orchestrator (uncredited) |
Additional Crew
| Reynold Brown | ... | movie poster art (uncredited) |
