Stephen Boyd as Dave

James Robertson Justice as Dr. Martout

Tony Wright as Jim

Anna Gaylor as Lise

Kathleen Harrison as Mme. Abou

Eugene Deckers as Blanchard

Rosalie Crutchley as Therese Blanchard

June Cowell as Renee Blanchard

Katherine Kath as Mme. Parfait

Anton Diffring as Col. Trautman

Denis Shaw as Fat German Soldier

George Coulouris as Paul Bourdin

Martin Miller as Schlip

James Kenney as Eric Triebel