The Human Duplicators
VoltarElenco
George NaderGlenn Martin
Barbara NicholsGale Wilson
George MacreadyProf. Vaughn Dornheimer
Dolores FaithLisa Dornheimer
Hugh BeaumontAustin Welles
Richard ArlenNational Intelligence
Richard KielDr. Kolos- John IndrisanoThor, the Butler
- Ted DurantThe Galaxy Being
- Tommy LeonettiReporter (sem créditos)
- Walter Maslow
- Larry Barton
- Lori Lyons
- Benito Prezia
- Margaret TeeleBlonde Lab Assistant
Alean 'Bambi' HamiltonBrunette Lab Assistant
Walter AbelDr. Munson
Lon SattonReporter (sem créditos)- Mel RuickDr. Munson (as Melville Ruick)
- Kim SatanaDr. Lin Yung
- John Dasten(as John Daston)
- Richard Schuyler
- William White(as Bill Hampton)
- Andrew Johnson(Uncredited)