Anthony Franciosa as Charles (as Tony Franciosa)

Anjanette Comer as Denise

Guy Stockwell as Braden

Paul Hubschmid as Frederich

Tom Bell as Ian

Michael Constantine as Ladislov

Harry Townes as General Marchois

John Marley as Rausch

Milton Selzer as Bartowski

Patric Knowles as General Lloyd-Griffis

Tige Andrews as Nicolay

Émile Genest as General Grieux (as Emile Genest)

Lee Bergere as Miral

Virginia Christine as Frau Gulden

Harry Landers as Pilot

Jean-Michel Michenaud as Polish Boy (as Gerald Michenaud)

Gene Dynarski as Capek (as Eugene Dynarski)

Ivor Barry as Air Marshal Evelyn

Simon Scott as General Jomar