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