Directed by
| Hugo Grimaldi | ||
| Arthur C. Pierce | ... | (uncredited) |
Writing Credits
| Arthur C. Pierce | ... | (written by) |
Cast (in credits order)
| George Nader | ... | Glenn Martin | |
| Barbara Nichols | ... | Gale Wilson | |
| George Macready | ... | Prof. Vaughn Dornheimer | |
| Dolores Faith | ... | Lisa Dornheimer | |
| Hugh Beaumont | ... | Austin Welles | |
| Richard Arlen | ... | Lt. Shaw - National Intelligence | |
| Richard Kiel | ... | Dr. Kolos | |
| John Indrisano | ... | Thor | |
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Ted Durant | ... | The Galaxy Being |
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Tommy Leonetti | ... | White Reporter |
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Mel Ruick | ... | Dr. Munson (as Melville Ruick) |
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Walter Maslow | ... | Main Gate Guard |
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Larry Barton | ... | Johnson |
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Kim Satana | ... | Dr. Lin Yung |
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Lori Lyons | ... | Miss Hart |
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Benito Prezia | ... | Main Gate Guard |
| Margaret Teele | ... | Blonde Lab Assistant (as Margot Teele) | |
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Alean 'Bambi' Hamilton | ... | Brunette Lab Assistant (as Aleane 'Bambi' Hamilton) |
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John Dasten | ... | (as John Daston) |
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Richard Schuyler | ||
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William White | ... | (as Bill Hampton) |
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Andrew Johnson | ||
| Rest of cast listed alphabetically: | |||
| Lon Satton | ... | Black Reporter (uncredited) | |
Produced by
| Hugo Grimaldi | ... | producer |
| Arthur C. Pierce | ... | producer |
| Lawrence Woolner | ... | executive producer (as Lawrence H. Woolner) |
Cinematography by
| Monroe P. Askins | ... | (as Monroe Askins) |
Editing by
| Donald Wolfe | ||
Art Direction by
| Paul Sylos | ||
Set Decoration by
| Raymond Boltz Jr. | ... | (as Ray Boltz) |
Costume Design by
| Mickey Meyers | ||
Makeup Department
| John Chambers | ... | special makeup effects artist |
| Bob Mark | ... | makeup artist |
| Kay Shea | ... | hair stylist |
Production Management
| Jesse Corallo | ... | production manager |
Second Unit Director or Assistant Director
| Jesse Corallo | ... | assistant director |
| Clancy Herne | ... | second assistant director |
Art Department
| Ross C. Burke | ... | property master |
Sound Department
| Robert Reeve | ... | sound effects editor |
| Jean G. Valentino | ... | sound mixer (as Jean Valentino) |
| Robert Glenn | ... | sound editor (uncredited) |
Special Effects by
| Roger George | ... | special effects (as Roger W. George) |
Camera and Electrical Department
| Frank Dugas | ... | camera operator (as Frank J. Dugas) |
| John Livesley | ... | head grip |
| George Marquenie | ... | gaffer |
Casting Department
| Marvin Paige | ... | casting consultant |
Costume and Wardrobe Department
| Carol Brooks | ... | wardrobe woman |
| Mickey Meyers | ... | wardrobe man |
Editorial Department
| Ray Nadeau | ... | negative cutter |
Music Department
| Igo Kantor | ... | music editor |
| Gordon Zahler | ... | musical director |
| Walter Greene | ... | composer: stock music (uncredited) |
| Hans J. Salter | ... | composer: stock music (uncredited) |
| Leith Stevens | ... | composer: stock music (uncredited) |
Script and Continuity Department
| Della Ross | ... | script supervisor |
