Cast
- Richard Romanowsky as Professor Cattori
- Hannelore Schroth as Melanie, seine Tochter
- Hans Moser as Franz Huber, Greißler
- Curd Jürgens as Bandleader Hans Storch
- Paul Kemp as Karli Weidner
- Susi Nicoletti as Fritzi, seine Sekretärin
- Herta Mayen as Gretl
- Karl Skraup as Attila Meisel
- Dorothea Neff as Frl. Streusand
- Walter Müller as Freddy