Richard Romanowsky
— Professor Cattori
Hannelore Schroth
— Melanie, seine Tochter
Hans Moser
— Franz Huber, Greißler
Curd Jürgens
— Bandleader Hans Storch
Paul Kemp
— Karli Weidner
Susi Nicoletti
— Fritzi, seine Sekretärin
Herta Mayen
— Gretl
Karl Skraup
— Attila Meisel
Dorothea Neff
— Frl. Streusand
Walter Müller
— Freddy
Theodor Danegger
— Direktor Hofer
Peter Wehle
— Peter
Teddy Bill
— Stepanek