Peter Lorre as Dr. Karl Rothe, alias Dr. Karl Neumeister

Karl John as Hösch, alias Nowak

Helmuth Rudolph as Colonel Winkler

Johanna Hofer as Mrs. Hermann

Renate Mannhardt as Inge Hermann

Eva Ingeborg Scholz as Ursula Weber

Peter Ahrweiler as Oberstleutnant Marquardt

Gisela Trowe as Prostitute

Richard Münch as 1. Kriminalbeamter

Lotte Rausch as Woman on the train

Kurt Meister as

Hansi Wendler as

Alexander Hunzinger as

Josef Dahmen as

Hans Fitz as

Kurt Fuß as

Joachim Hess as Lieutenant

Hans Schmitz as Paschke

Georg Siebert as Blaschek

Horst von Otto as 2. Kriminalbeamter