Dan Charles Logan
Dr. Roy Caldwell
Maj. Holliford
Dr. Spencer
Chris Logan
Col. William Franklin
Major Reintz
Col. Alan A. Nickerson
Dr. Janeway
Major Cooper
Dr. Thompson
Bill Parker
Sarah Parker
Dr. Spike Boynton
Simpson
Waitress
Ambulance Driver (uncredited)
Bit Part
Dr. Walter Steenrod, Chivington Research Laboratories
Kaufman Trucking Co. driver
Director
Writer
Second Assistant Director
Director of Photography
Original Music Composer
Writer
Producer
Set Decoration
Casting
Editor
Art Direction
Executive Producer
Executive Producer
Associate Producer
Costume Design
Makeup Artist
Production Manager
Second Assistant Director
Assistant Director
Property Master
Sound Editor
Sound Mixer
Sound
Sound Editor
Sound
Special Effects
Special Effects
Stunt Coordinator
Stunts
Camera Operator
Extras Casting
Location Manager
Music Editor
Musician
Musician
Musician
Musician
Musician
Musician
Musician
Musician
Musician
Musician
Musician
Musician
Musician
Musician
Musician
Musician
Musician
Musician
Musician
Musician
Musician
Musician
Musician
Musician
Musician
Musician
Musician
Musician
Musician
Orchestrator
Musician
Musician
Musician
Musician
Musician
Scoring Mixer
An accidental nerve gas leak by the military kills not only a rancher's livestock, but also his son. When he tries to hold the military accountable for their actions, he runs up against a wall of silence.