Paul Hubschmid character John McLaren
Fiorella Mari character Mary McLaren
Madeleine Fischer character Katy Dandridge
Ivo Garrani character Professor Herbert Weisse
Dario Michaelis character Peter Leduq
Peter Meersman character General van Dorff
Jean-Jacques Delbo character Sergei Boetnikov
Massimo Zeppieri character Dennis McLaren
Sam Galter character Randowsky
Annie Bernal character Lab Assistant
