Lewis Erskine
Arthur Ward
Narrator (uncredited)
Special Agent Tom Colby
Barbara Erskine
Agente especial Chris Daniels
Agente especial Jim Rhodes
Barbara Holman
Ambassador Korvin
Claude Townsend
Alex Yustov
Kessler
Gary Deuel
Dr. Holman
Glenn Orland
Larry Norton
Davis Turner
Director
Writer
Technical Advisor
