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Robert Z'Dar as Sam Hell |
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Denice Duff as Dr. Spangle |
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Lou Ferrigno as Ranger John Jones |
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Don Stroud as Brandy Stone |
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Charles Napier as Capt. Delano |
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Brion James as Prof. Tanzer |
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Linda Singer as Nurse Cloris |
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Rhonda Shear as Fuzzy |
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Ken Davitian as Bud |
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Larry Kelsey as Cmdr. Toty |
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Douglas Dunning as Frog Soldier |
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Zona Jaguar as Frog |
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Nancy Jury as Frog |
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Mike Nyman as Frog |
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Mikul Robins as Frog |
| Directing | Donald G. Jackson | Director |
| Writing | Donald G. Jackson | Screenplay |
| Writing | Tanya York | Story |
| Writing | Donald G. Jackson | Story |
| Production | Scott Pfeiffer | Producer |
| Production | Scott Shaw | Producer |
| Production | Tanya York | Executive Producer |
| Camera | Donald G. Jackson | Director of Photography |
| Editing | Christopher Roth | Editor |
| Art | George Peirson | Production Design |
| Crew | Jim Vines | Stunts |
| Crew | Warren A. Stevens | Stunts |
| Crew | Wayne Beauchamp | Special Effects |
| Sound | Robert Garrett | Original Music Composer |
