Directed by
| Phil Tucker | ||
Writing Credits
| Wyott Ordung | ... | (original screenplay) |
Cast (in credits order) verified as complete
| George Nader | ... | Roy | |
| Claudia Barrett | ... | Alice | |
| Selena Royle | ... | Mother (as Selena Royale) | |
| John Mylong | ... | The Professor | |
 |
Gregory Moffett | ... | Johnny |
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Pamela Paulson | ... | Carla |
| George Barrows | ... | Ro-Man the Monster / Great Guidance | |
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John Brown | ... | Ro-Man / Great Guidance (voice) |
Produced by
| Phil Tucker | ... | producer |
| Alan Winston | ... | associate producer |
| Al Zimbalist | ... | executive producer |
Music by
| Elmer Bernstein | ||
Cinematography by
| Jack Greenhalgh | ... | director of photography |
Editing by
| Merrill G. White | ... | (as Merrill White) |
Makeup Department
| Stanley E. Campbell | ... | makeup artist (as Stan Campbell) |
Production Management
| Clarence Eurist | ... | production supervisor |
Second Unit Director or Assistant Director
| Robert E. Barnes | ... | assistant director (as Robert Barnes) |
Art Department
| John Orlando | ... | property master |
Sound Department
| Lyle Willey | ... | sound director (as Lyle E. Willey) |
Visual Effects by
| David Commons | ... | special photographic effects |
| Jack Rabin | ... | special photographic effects |
| Roy Seawright | ... | dinosaur sequences (archive footage) (uncredited) |
Camera and Electrical Department
| Gordon Avil | ... | stereo director |
| Ben Colman | ... | stereo technician |
Costume and Wardrobe Department
| Henry West | ... | wardrobe |
Editorial Department
| Bruce Schoengarth | ... | associate editor |
Music Department
| Elmer Bernstein | ... | music director |
Script and Continuity Department
| Ted Schilz | ... | script supervisor (as Teddy Schilz) |
Additional Crew
| Irving Lerner | ... | production associate |
| Herbert G. Luft | ... | assistant to producer (as Herbert Luft) |
