- Willy Birgel
- Agent Morris
- Lída Baarová
- Marion
- Irene von Meyendorff
- Hilde Körner
- Theodor Loos
- Dr. Auer
- Rudolf Fernau
- Fritz Brockau
- Herbert A.E. Böhme
- Agent Schultz
- Heinz Welzel
- Hans Klemm
- Paul Dahlke
- Agent Geyer
- Josef Dahmen
- Ein Helfer
- Hans Zesch-Ballot
- Dr. Wehner
- Sepp Rist
- Commissioner Kilian
- Siegfried Schürenberg
- Neumann
- Ernst Karchow
- Major Walen
- Volker von Collande
- Referendar Kröpke
- Carl Auen
- Detective Assmann
- Ernst Behmer
- Photographer
- Kurt Daehn
- Ein Geheimkurier
- Otto Graf
- Captain Dressler
- Hans Reinhold Hauer
- (uncredited)
- Hans Henninger
- Max
- Max Hochstetter
- (uncredited)
- Karl Junge-Swinburne
- Tank division commander
- Hans Meyer-Hanno
- (uncredited)
- Hellmuth Passarge
- (uncredited)
- Willi Rose
- Ede
- Heinrich Schroth
- General manager T-Metallwerke
- Gisela von Collande
- Trude
- Ewald Wenck
- Detective Schober
