George Peppard

as Lt. Bruno Stachel

James Mason

as General Count von Klugermann

Ursula Andress

as Countess Kaeti von Klugermann

Jeremy Kemp

as Willi von Klugermann

Karl Michael Vogler

as Colonel Otto Heidemann

Anton Diffring

as Holbach

Harry Townes

as Kettering

Peter Woodthorpe

as Rupp