Directed by
| Edward L. Cahn | ||
Writing Credits
| Jerome Bixby | ... | (screenplay) |
Cast (in credits order) verified as complete
| Richard Anderson | ... | Dr. Paul Mallon | |
| Elaine Edwards | ... | Tina Enright | |
| Adele Mara | ... | Maria Fiorillo | |
 |
Luis Van Rooten | ... | Dr. Carlo Fiorillo |
| Gar Moore | ... | Dr. Enricco Ricci | |
|
|
Felix Locher | ... | Dr. Emanuel |
| Jan Arvan | ... | Police Insp. Renaldi | |
| Bob Bryant | ... | Quintillus Aurelius | |
| Rest of cast listed alphabetically: | |||
| Morris Ankrum | ... | Narrator (voice) (uncredited) | |
|
|
Rudy Germane | ... | Police Officer (uncredited) |
| Jack Kenney | ... | Police Officer (uncredited) | |
|
|
Anthony Redondo | ... | Police Officer (uncredited) |
|
|
George Sawaya | ... | Tony (uncredited) |
| Stephen Soldi | ... | Workman (uncredited) | |
Produced by
| Robert E. Kent | ... | producer |
| Edward Small | ... | executive producer (uncredited) |
Music by
| Gerald Fried | ||
Cinematography by
| Kenneth Peach | ... | director of photography |
Editing by
| Grant Whytock | ||
Art Direction by
| William Glasgow | ||
Set Decoration by
| Herman N. Schoenbrun | ... | (as Herman Schoenbrun) |
Makeup Department
| Layne Britton | ... | makeup artist |
| Kay Shea | ... | hairdresser (as Kaye Shea) |
Second Unit Director or Assistant Director
| Jack R. Berne | ... | assistant director |
Art Department
| Max Frankel | ... | property master |
Sound Department
| Robert G. Carlisle | ... | effects editor (as Robert Carlisle) |
| Frank Webster | ... | sound (as Frank Webster Sr.) |
Special Effects by
| Ira Anderson Jr. | ... | special effects (as Ira Anderson) |
| Charles Gemora | ... | creature creator (as Charles Gemorra) |
Costume and Wardrobe Department
| Einar Bourman | ... | wardrobe man |
| Vou Lee Giokaris | ... | wardrobe woman |
| Charles Gemora | ... | costume: The Faceless Man (uncredited) |
Editorial Department
| Grant Whytock | ... | supervising editor |
Script and Continuity Department
| George Rutter | ... | script supervisor |
