Peter van Eyck
— Studienrat Dr. Torsten Agast
Corny Collins
— Beate Schorlemmer
Jörg Holm
— Dieter Agast
Doris Kirchner
— Norma Berg
Adelheid Seeck
— Erika Romayer
Sabine Sinjen
— Ruth
Hans Nielsen
— Principal Schorlemmer
Werner Peters
— Kalweit
Edith Hancke
— Gerti
Ralf Wolter
— Sports Teacher
Franz Schafheitlin
— Judge Wangen
Rex Gildo
— Peter Utesch
Robert Meyn
— Defense Attorney
Helmut Peine
— Schulrat Höhne
Ludwig Linkmann
— Franke
Horst Gentzen
— Pumpi Haberland
Wolfgang Koch
— Joe
Peter Nijinskij
— Zimmer
Karin Volquartz
— Felicitas (uncredited)
Mario Ahrens
— Otti Sumflat (uncredited)