Episode cast overview, first billed only: | |||
Jane Badler | ... | Diana | |
June Chadwick | ... | Lydia | |
Jennifer Cooke | ... | Elizabeth Maxwell | |
Robert Englund | ... | Willie | |
Faye Grant | ... | Dr. Julie Parrish | |
Michael Ironside | ... | Ham Tyler | |
Marc Singer | ... | Mike Donovan | |
Lane Smith | ... | Nathan Bates | |
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Blair Tefkin | ... | Robin Maxwell |
Michael Wright | ... | Elias Taylor | |
Jeff Yagher | ... | Kyle Bates | |
John McLiam | ... | Jacob | |
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Robert Thaler | ... | Ensign Daniel |
Anthony De Longis | ... | Ghalen | |
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Armand Cerami | ... | Visitor Gunnery Officer |
When Diana seals off the Open City with an impenetrable force field which destroys humans on contact, Donovan and Ham must kidnap the alien genius responsible for its development.