Directed by
| Lee Frost | ||
Writing Credits
| Lee Frost | ... | (screenplay) & |
| Wes Bishop | ... | (screenplay) and |
| James Gordon White | ... | (screenplay) |
| Lee Frost | ... | (story) and |
| Wes Bishop | ... | (story) |
Cast (in credits order) complete, awaiting verification
| Ray Milland | ... | Maxwell Kirshner | |
| Roosevelt Grier | ... | Jack Moss (as 'Rosey' Grier) | |
| Don Marshall | ... | Dr. Fred Williams | |
| Roger Perry | ... | Dr. Philip Desmond | |
| Chelsea Brown | ... | Lila | |
| Kathrine Baumann | ... | Patricia (as Kathy Baumann) | |
| John Dullaghan | ... | Thomas | |
| John Bliss | ... | Donald | |
| Bruce Kimball | ... | Police Lieutenant | |
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Jane Kellem | ... | Miss Mullen |
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Lee Frost | ... | Sergeant Hacker |
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Wes Bishop | ... | Dr. Smith |
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Roger Gentry | ... | Police Sergeant |
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Britt Nilsson | ... | Nurse |
| Rick Baker | ... | Gorilla | |
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Phil Hoover | ... | Policeman |
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Rod Steele | ... | Medical Salesman |
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Michael Viner | ... | Prison Guard |
| William Smith | ... | Hysterical Condemned Man | |
| Jerry Butler | ... | Prison Guard | |
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George E. Carey | ... | Mitch |
| Tommy Cook | ... | Priest | |
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Albert Zugsmith | ... | Cameo Appearance |
| Dick Whittington | ... | TV Newscaster | |
| Rest of cast listed alphabetically: | |||
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Ron Gans | ... | Reporter in Tan Coat (uncredited) |
| Joan Prather | ... | Nurse (uncredited) | |
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Ray Sebastian | ... | Policeman in Car 219 (uncredited) |
Produced by
| Wes Bishop | ... | producer |
| John Lawrence | ... | executive producer |
| James H. Nicholson | ... | executive producer |
Music by
| Robert O. Ragland | ||
Cinematography by
| Jack Steely | ||
Production Management
| Roger Gentry | ... | production manager |
Sound Department
| George Porter | ... | re-recording mixer |
| Edward Schryver | ... | post-production sound supervisor |
| Clark Will | ... | production sound |
Special Effects by
| Gail Brown | ... | head re-creator: Mr. Milland and Mr. Grier |
| Thomas R. Burman | ... | head re-creator: Mr. Milland and Mr. Grier (as Tom Burman) |
| Pete Peterson | ... | head re-creator: Mr. Milland and Mr. Grier |
| Charles H. Schram | ... | head re-creator: Mr. Milland and Mr. Grier (as Charles Schram) |
| Daniel C. Striepeke | ... | head re-creator: Mr. Milland and Mr. Grier (as Dan Striepeke) |
| James Gordon White | ... | head re-creator: Mr. Milland and Mr. Grier (as James White) |
| Rick Baker | ... | special effects (uncredited) |
Stunts
| Bud Ekins | ... | stunt coordinator (as 'Bud' Ekins) |
| Paul Nuckles | ... | stunt coordinator |
| Dick Durock | ... | stunts (uncredited) |
| Gary McLarty | ... | stunts (uncredited) |
Camera and Electrical Department
| Jerry Deats | ... | key grip |
| Charles Minsky | ... | assistant camera (as Chuck Minsky) |
| Edward Schryver | ... | assistant camera |
| Larry Wallace | ... | electrician (uncredited) |
Editorial Department
| Ed Forsyth | ... | editorial supervisor |
Music Department
| David Angel | ... | arranger: additional music / composer: additional music |
| Porter Jordan | ... | arranger: additional music / composer: additional music |
| Michael Viner | ... | music producer / music supervisor / musical director |
Transportation Department
| Chris Haynes | ... | driver (uncredited) |
Additional Crew
| Samuel Z. Arkoff | ... | presenter |
| Cadvan Griffiths | ... | medical advisor (as Dr. Cadvan Griffiths) |
| Fred Nyquist | ... | assistant to producer |
| Rod Steele | ... | medical advisor |
| David Sheldon | ... | production executive (uncredited) |
Thanks
| George E. Carey | ... | special thanks |
| Tommy Cook | ... | special thanks |
| William Smith | ... | special thanks |
| Dick Whittington | ... | special thanks |
| Albert Zugsmith | ... | special thanks |
