- John McNamara - The Neurologist
- Loretta Nicholson - Joan
- Raymond Winston - Arthur Lang
- Jack Kosslyn - Newscaster
- George Navarro - Mexican Doctor
- Bob Garnet - Capitol Hill Reporter
- Stan Chambers - TV Announcer
- June Burt - Laurie Edwards
- Howard Wright - Medical Research Official
- George Alexander - Army Officer
- Bill Giorgio - Bus Driver
- Hal Torey - Health and Welfare Department Head
- George Milan - Gen. Nelson
- Warren Frost - Police Dispatcher
- Roy Gordon - Mayor of Los Angeles
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Peter Gersina
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Ulrike Weber, Anita Schneider, Stefan Kruppa, Stephanie Heckner
Capítulo disponible en las siguientes plataformas: