Directed by
| Fred Olen Ray | ||
Writing Credits
| Fred Olen Ray | ... | (written by) |
| T.L. Lankford | ... | (additional dialogue) & |
| Miriam L. Preissel | ... | (additional dialogue) (as M.L. Preissel) |
Cast (in credits order) verified as complete
| Aldo Ray | ... | General Randolph | |
| Angelique Pettyjohn | ... | Lisa Martyn | |
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William Fair | ... | Mitchell Carter |
| David O'Hara | ... | Reiger (as David Pearson) | |
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Frank McDonald | ... | Mike Hodgson |
| Art Payton | ... | Dr. Williams (as Arthur Payton) | |
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Charles Roth | ... | Jack Murphy |
| Carroll Borland | ... | Rula Murphy | |
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Richard Hench | ... | Roger |
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Loren Crabtree | ... | Jenny |
| George Randall | ... | Dumpster Man | |
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Brad Arrington | ... | Chambers |
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Ray Lawrence | ... | Mayfield |
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Robert King | ... | Sheriff Miller |
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Mike Bonavia | ... | Decker |
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Robin Schurtz | ... | Richard |
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Michael Bober | ... | Jimmy |
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Bret Miller | ... | Cliff |
| Steve Welles | ... | Walker | |
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Liam Stone | ... | Hench |
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Emanuel Shipow | ... | Fred (as Manuel Shipow) |
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Stuart Weitman | ... | Elbert |
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Cynthia Hartline | ... | Maggie |
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Kimba | ... | Ranger |
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Donald G. Jackson | ... | Medic #1 |
| Fred Olen Ray | ... | Medic #2 | |
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Jairo Leon | ... | Agent |
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Christopher Ray | ... | The Bio-Monster |
Produced by
| Ray Guttman | ... | co-producer |
| Richard Hench | ... | associate producer |
| T.L. Lankford | ... | executive producer |
| Miriam L. Preissel | ... | associate producer |
| Fred Olen Ray | ... | producer (produced by) |
| Arthur Schweitzer | ... | executive producer (as Art Schweitzer) |
Music by
| Drew Neumann | ... | (musical score by) |
| Eric Rasmussen | ... | (musical score by) |
Cinematography by
| Paul Elliott | ... | director of photography |
| John McCoy | ... | director of photography |
Editing by
| Miriam L. Preissel | ||
| Jack Tucker | ||
Makeup Department
| Mark Buckmaster | ... | additional makeup |
| Wendy Hogan | ... | additional makeup |
| Bart Mixon | ... | additional makeup (as Bart J. Mixon) |
| Joe Reader | ... | additional makeup |
Second Unit Director or Assistant Director
| Donald G. Jackson | ... | assistant director |
Sound Department
| Rex Bailie | ... | sound |
| Craig Tomlin | ... | sound |
| Ralph Langer | ... | assistant sound effect editor (uncredited) |
Special Effects by
| Kenneth J. Hall | ... | 'Bio-Monster' suit created by |
| Steve Johnson | ... | severed head courtesy of |
| Jon McCallum | ... | special effects makeup |
Visual Effects by
| Nancy Deturo | ... | animation assistant (as Nancy DeTuro) |
| Kenneth J. Hall | ... | animation assistant |
| Hank Mayo | ... | animation assistant |
| Bret Mixon | ... | animation camera / main title design / special effects animation |
| Juniko Moody | ... | animation camera |
| Christine Shearer | ... | animation assistant |
Camera and Electrical Department
| Robert Blackmon | ... | second assistant camera |
| Tony Brewster | ... | grip |
| Doug Cragoe | ... | gaffer |
| Ira Farmer | ... | grip |
| Dory Hamm | ... | gaffer (as Dori Hamm) |
| David Huey | ... | second assistant camera (as Dave Huey) |
| Donald G. Jackson | ... | second unit photography |
| Paulian Amadeus Morris | ... | first assistant camera (as Paulian Morris) |
| Miriam L. Preissel | ... | still photographer (as M.L. Preissel) |
| Scott Andrew Ressler | ... | first assistant camera (as Scott Ressler) / second unit photography (as Scott Ressler) |
| Timothy Roarke | ... | grip (as Tim Roarke) |
Additional Crew
| Danita Aljuwani | ... | production assistant |
| Emin Aljuwani | ... | production assistant |
| Charisse Buchanan | ... | production assistant |
| Ray Filippini | ... | production assistant |
| Joy Kelley | ... | caterer |
| Michael Labbe | ... | production assistant |
| Timothy Roarke | ... | monster wrangler (as Tim Roarke) |
| Robert Tinnell | ... | production assistant (as Bob Tinnell) |
Thanks
| Dan Alfrey | ... | special thanks |
| Tom Campbell | ... | special thanks |
| Pam Fowler | ... | special thanks |
| Jimmy Maslon | ... | special thanks (as Jimmie Lee Maslon) |
| Herbert L. Strock | ... | special thanks |
