Cast
- Elfie Mayerhofer as Lilli Günther & Viktoria Thomsen
- Johannes Heesters as Ferry van der Heuvels
- Hedwig Bleibtreu as Mafalda Cellini
- Fritz Imhoff as Portier
- Egon von Jordan as Knut Thomsen
- Lilly Stepanek as Irene Thomsen
- Eugen Neufeld as Petersen
- Fritz Lehmann as Herr Brink
- Wilhelm Heim as Prof. Werner