Cast
- Leopold Rudolf as Professor Bernhardi
- Attila Hörbiger as Professor Pflugfelder
- Fritz Muliar as Dr. Schreimann
- Franz Messner as Dr. Feuermann
- Erich Padalewski as Dr. Oskar Bernhardi
- Michael Heltau as Dr. Kurt Pflugfelder
- Kurt Nachmann as Dr. Goldenthal
- Fred Liewehr as Filitz
- Franz Stoß as Ebenwald
- Erik Frey as Minister Flint