Directed by
| Georg Fenady | ||
Writing Credits
| Norman Katkov | ... | (written by) |
Cast (in credits order)
| Dennis Cole | ... | Ranger Gene Pearson | |
| Susan Sullivan | ... | Sen. Kate Lassiter | |
| Leslie Nielsen | ... | Joe Johnson | |
| Julie Sommars | ... | Liz Johnson | |
| Sheila Larken | ... | Ann Soames | |
| Lonny Chapman | ... | Walt Charles | |
| James Olson | ... | Tom Arlen | |
| Ray Milland | ... | Prof. Harrison Soames | |
| Ivan Bonar | ... | Doctor - Prison | |
| David Westberg | ... | Larry Munson | |
 |
Todd Martin | ... | Herb |
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Joseph Della Sorte | ... | Cooper |
| William Bryant | ... | Jack Miller (as Bill Bryant) | |
| Michael Masters | ... | Ray | |
Produced by
| Irwin Allen | ... | producer |
Music by
| Richard LaSalle | ... | (as Richard La Salle) |
Cinematography by
| John M. Nickolaus Jr. | ... | director of photography (as John Nickolaus) |
Editing by
| Dick Wormell | ||
Casting By
| Jack Baur | ||
Art Direction by
| Duane Alt | ||
Set Decoration by
| James Hassinger | ... | (as Jim Hassinger) |
Costume Design by
| Paul Zastupnevich | ||
Makeup Department
| Dan Greenway | ... | makeup artist |
| Dorothea Long | ... | hair stylist (as Dorothia Long) |
Production Management
| George E. Swink | ... | post-production supervisor |
| William L. Young | ... | unit production manager |
Second Unit Director or Assistant Director
| Cathy Kinsock | ... | second assistant director |
| Edward E. Vaughan | ... | first assistant director |
Art Department
| Jack E. Ackerman | ... | property master |
| Phillip Bennett | ... | assistant art director (as Phil Bennett) |
Sound Department
| Gene Eliot | ... | sound effects editor |
| Allan R. Potter | ... | sound effects editor |
| Don Rush | ... | sound mixer |
| Josef von Stroheim | ... | sound effects editor (as Joe von Stroheim) |
Special Effects by
| Ted Koerner | ... | special effects (uncredited) |
Stunts
| Paul Nuckles | ... | stunt coordinator (as Paul Knuckles) |
Music Department
| Donald Harris | ... | music editor |
Transportation Department
| Donald P. Desmond | ... | transportation coordinator |
Additional Crew
| Tony Habeeb | ... | publicist |
| Art Volpert | ... | executive assistant to producer |
| Arthur Weiss | ... | production executive |
