Cast e produzione
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Grace Lee WhitneyYeoman Janice Rand - John ArndtCrewman Sturgeon
- Sandra Lee GimpelM-113 Creature
- Garrison TrueSecurity Guard
- Larry AnthonyBerkley
- Jeanne BalNancy Crater
- Alfred RyderProfessor Robert Crater
- Bruce WatsonGreen
- Michael ZaslowDarnell
- Vince HowardCrewman
- Francine PyneNancy III
- Budd AlbrightBarnhart
- Bob BakerBeauregard
- Bill BlackburnLt. Hadley
- Frank da VinciBrent
- Eddie PaskeyLt. Ryan