Christopher George (Steve Buckner)
Leslie Nielsen (Paul Jenson)
Lynda Day George (Terry Marsh)
Richard Jaeckel (Prof. MacGregor)
Michael Ansara (Daniel Santee)
Andrew Stevens (Bob Dennings)
Garrison True (TV Announcer)
Michelle Stacy (Little Girl)
Michael Rougas (Military Officer)
Bob Porter (Jon Goodwyn)
Gil Lamb (Old Man in Bar)
Kathleen Bracken (Beth Hughes)
Susan Backlinie (Mandy Young)
Ruth Roman (Mrs. Shirley Goodwin)
Jon Cedar (Frank Young)
Paul Mantee (Roy Moore)
Walter Barnes (Ranger Tucker)