""
Joachim Gottschalk
as Engelbrecht, Chemiker
Ernst von Klipstein
as Dr. Paul Gildemeister, Chemiker
Hertha Feiler
as Barbara Wrede
Paul Hoffmann
as Dr. Wrede, Barbaras Bruder
Siegfried Schürenberg
as Dr. Marlow, Werkslaborant
Walter Werner
as Hedemeier, Prokurist
Gerhard Dammann
as Julius Hückebusch, Werkmeister
Gerhard Bienert
as Müller, Lagerverwalter
Theo Shall
as René Laroche, Fabrikbesitzer
Ingolf Kuntze
as Dr. Schmidtmann, Bank-Abteilungsleiter
Kurt Mikulski
as Prokurist
Bruno Klockmann
as Thomas, Nachtwächter
Franz Arzdorf
as Polizeipräsident
Ludwig Schmid-Wildy
as Kriegsgefangener
Fritz Böttger
as Nachtlokalbesitzer
Hermann Mayer-Falkow
as
Oskar Schnirch
Director of Photography
Hans-Martin Majewski
Original Music Composer
Arthur Maria Rabenalt
Director
Carl Unselt
Novel
Philipp Lothar Mayring
Screenplay
Otto Lehmann
Line Producer
Wolfgang Wehrum
Assistant Director
Carl Erich Kroschke
Sound
