John Gavin

as Ernst Graeber

Liselotte Pulver

as Elizabeth Kruse

Jock Mahoney

as Immerman

Don DeFore

as Boettcher

Keenan Wynn

as Reuter

Erich Maria Remarque

as Professor Pohlmann

Dieter Borsche

as Captain Rahe

Barbara Rütting

as Woman Guerrilla

Thayer David

as Oscar Binding

Douglas Sirk

Director