Helmut Käutner
(Professor)
Yvonne Furneaux
(Professor's Wife)
Paul Hubschmid
(Professor's Friend)
Peter Vogel
(Professor's Friend)
Friedhelm Lehmann
(Professor's Friend)
Christiane Hörbiger
(Professor's Assistant)
Dominique Müller
(Professor's Daughter)
Charlotte Kerr
Alexander Allerson
Willibald Eser
Anita Mally
Sandie Shaw