Richard Widmark as Michael Reynolds

Sonja Ziemann as Julia

Charles Regnier as The Count

Walter Rilla as Jancsi

Senta Berger as Elsa

Howard Vernon as Colonel Hidas

Heinz Moog as Minister Sakenov

Hubert von Meyerinck as Sheffler

Oskar Wegrostek as The Fat Man

Stefan Schnabel as Border Official

Elisabeth Neumann-Viertel as Olga

Helmut Janatsch as Janos

John Horsley as Jon Brainbridge

Walter Wilz as Peter

Raoul Retzer as Special Agent

Georg Köváry as Language Professor

Ady Berber as Sandor

Jochen Brockmann as The Commandant

Brigitte Brunmüller as Waitress

Reinhard Kolldehoff as The Count's Man

Rudolf Rössner as The Count's Man