Directed by
| Edward L. Cahn | ||
Writing Credits
| Jerome Bixby | ... | (screenplay) |
Cast (in credits order) verified as complete
| Marshall Thompson | ... | Col. Edward Carruthers | |
| Shirley Patterson | ... | Ann Anderson (as Shawn Smith) | |
 |
Kim Spalding | ... | Col. Van Heusen |
| Ann Doran | ... | Mary Royce | |
| Dabbs Greer | ... | Eric Royce | |
| Paul Langton | ... | Lt. James Calder | |
| Robert Bice | ... | Maj. John Purdue | |
| Richard Benedict | ... | Bob Finelli | |
|
|
Richard Hervey | ... | Gino Finelli |
| Thom Carney | ... | Joe Kienholz | |
| Ray Corrigan | ... | It | |
| Rest of cast listed alphabetically: | |||
| Stuart Hall | ... | Reporter (uncredited) | |
|
|
Mike Morelli | ... | Reporter (uncredited) |
| Monty O'Grady | ... | Reporter (uncredited) | |
| Bert Stevens | ... | Reporter (uncredited) | |
| Pierre Watkin | ... | Spokesman at Press Conference (uncredited) | |
Produced by
| Robert E. Kent | ... | producer |
| Edward Small | ... | producer (uncredited) |
Music by
| Paul Sawtell | ||
| Bert Shefter | ||
Cinematography by
| Kenneth Peach | ... | director of photography |
Art Direction by
| William Glasgow | ||
Set Decoration by
| Herman N. Schoenbrun | ... | (as Herman Schoenbrun) |
Makeup Department
| Layne Britton | ... | makeup artist (as Lane Britton) |
| Loren Cosand | ... | makeup artist |
| Lillian Shore | ... | hair stylist |
Production Management
| Ben Hersh | ... | production supervisor |
| Joseph Small | ... | assistant production manager |
Second Unit Director or Assistant Director
| Ralph E. Black | ... | assistant director |
| Jack McEdward | ... | assistant director (uncredited) |
Art Department
| Eugene S. Kelley | ... | construction supervisor |
| Arthur Wasson | ... | property master |
Sound Department
| Robert G. Carlisle | ... | sound effects editor (as Robert Carlisle) |
| Al Overton | ... | sound |
| Tony Samaniego | ... | boom operator |
Special Effects by
| Paul Blaisdell | ... | alien suit designer/builder (uncredited) |
Camera and Electrical Department
| Walter Brine | ... | grip |
| Ben Colman | ... | camera operator |
| Eugene Kornman | ... | still photographer |
| James Punter | ... | gaffer |
Costume and Wardrobe Department
| Jack Masters | ... | wardrobe |
Editorial Department
| Grant Whytock | ... | supervising editor |
Music Department
| Jack Cookerly | ... | composer: electronic music (uncredited) |
Script and Continuity Department
| George Rutter | ... | script supervisor |
Additional Crew
| Bob Burns | ... | assistant: Paul Blaisdell (uncredited) |
