George Segal (Quiller)
Alec Guinness (Pol)
Max von Sydow (Oktober)
Senta Berger (Inge)
George Sanders (Gibbs)
Günter Meisner (Hassler)
Ernst Walder (Grauber)
Philip Madoc (Oktober's men)
John Rees (Oktober's Man)
Robert Helpmann (Weng)
Robert Flemyng (Rushington, Gibb's Associate)
Peter Carsten (Hengel)
Edith Schneider (Headmistress)