Directed by
| Richard Benedict | ... | (directed by) |
Writing Credits
| John W. Bloch | ... | (written by) |
| Larry Cohen | ... | (created by) |
Cast (in credits order)
| Roy Thinnes | ... | David Vincent | |
| John Larch | ... | Greg Lucather | |
| Carol Eve Rossen | ... | Selene Lowell (as Carol Rossen) | |
| Frank Overton | ... | Dr. Grayson | |
| Louise Latham | ... | Joan Corman | |
| Tim McIntire | ... | Steve Gibbs | |
 |
William Sargent | ... | Dr. Ken Harrison |
| Jonathan Goldsmith | ... | Kevin Ryan (as Jonathan Lippe) | |
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James Devine | ... | Jimmy |
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Dallas Mitchell | ... | Andy |
| Bill Erwin | ... | Manager | |
| Danni Sue Nolan | ... | Nurse (as Dani Nolan) | |
| Phillip Pine | ... | Sgt. Hal Corman (as Phillip E. Pine) | |
| Rest of cast listed alphabetically: | |||
| Bill Hickman | ... | Patrolman (uncredited) | |
| Guy Way | ... | Lab Worker (uncredited) | |
|
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Dick Wesson | ... | Introductory Narrator (voice) (uncredited) |
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William Woodson | ... | Narrator (voice) (uncredited) |
Produced by
| Alan A. Armer | ... | producer |
| Quinn Martin | ... | executive producer |
| Anthony Spinner | ... | associate producer |
Music by
| Dominic Frontiere | ... | (music by) |
Cinematography by
| Andrew J. McIntyre | ... | director of photography |
Editing by
| Walter Hannemann | ... | film editor |
Casting By
| Patricia Mock | ... | (as Patricia Rose Mock) (casting) |
Art Direction by
| James Dowell Vance | ... | (as James D. Vance) |
Set Decoration by
| Carl Biddiscombe | ||
Makeup Department
| Jack Barron | ... | makeup artist |
| Annabell Levy | ... | hair stylist (as Annabell) |
Production Management
| Howard P. Alston | ... | production manager (as Howard Alston) |
| John Elizalde | ... | post-production supervisor |
| Arthur Fellows | ... | in charge of production |
| Adrian Samish | ... | in charge of production |
| Robert G. Stone | ... | unit production manager |
Second Unit Director or Assistant Director
| Carl Barth | ... | second unit director |
| Donald C. Klune | ... | assistant director (as Donald Klune) |
| Harold Schneider | ... | second assistant director |
Art Department
| Harold Nyby | ... | construction coordinator |
| Ray Thompson | ... | property master |
Sound Department
| Werner Kirsch | ... | sound editor |
| Al Overton | ... | production mixer |
Special Effects by
| Ira Anderson Jr. | ... | special effects (as Ira Anderson) |
Visual Effects by
| Darrell A. Anderson | ... | special photographic effects |
Stunts
| Glenn R. Wilder | ... | stunt coordinator (uncredited) |
Camera and Electrical Department
| Robert R. Farmer | ... | chief electrician (as Robert Farmer) |
| Larry Milton | ... | key grip |
| Gail Parker | ... | second camera operator |
Costume and Wardrobe Department
| Frank Beetson Jr. | ... | costume supervisor (as Frank Beetson) |
Editorial Department
| Martin Fox | ... | assistant film editor |
Music Department
| Dan Carlin Sr. | ... | music editor (as Dan Carlin) |
Script and Continuity Department
| Marshall Schlom | ... | script supervisor |
Additional Crew
| John Conwell | ... | assistant to executive producer |
