| Directed by |
Fred F. Sears |
|
| Screenplay by |
Bernard Gordon |
|
| Cast: | ||
| Dr. Russell A. Marvin | Hugh Marlowe | |
| Brig. Gen. John Hanley | Morris Ankrum | |
| Prof. Kanter | John Zaremba | |
| Motorcycle Cop | Larry J. Blake | |
| Alien (voice) | Paul Frees | |
| Cutting - Generator Technician | Harry Lauter | |
| Military Officer at Experiment | Forbes Murray | |
| Alfred Cassidy | Frank Wilcox | |
| Executive Producer |
Sam Katzman |
|
| Year: | 1956 | |
| Running time: | 83 minutes | |
| Country: | United States | |
| Language: | English | |