Cast
- Bernd Aldor as Dr. Gonzales/Dr. Ranzau
- Mary Parker as Liane
- Mary Kid as Kitty
- Betty Astor as Rita
- Valeska Stock as Frau Weber
- Karl Beckersachs as Kurt/Arthur von Hiller
- Hans Albers as Alex Bums/Pumm
- Kurt Gerron as Willi Krach
- Fritz Kampers as Paul Körner/Hart