The German philosopher Friedrich Nietzsche and his Jewish companion Paul Ree meet a beautiful young Russian intellectual and draw her into a ménage-à-trois.
Dominique Sanda
Lou Andreas Salomé
Erland Josephson
Friedrich Nietzsche
Robert Powell
Paul Rée
Virna Lisi
Elizabeth Nietzsche
Michael Degen
Karl Andreas
Elisa Cegani
Franziska Nietzsche
Umberto Orsini
Bernard Foester
Philippe Leroy
Peter Gast
Carmen Scarpitta
Malvida
Nicoletta Machiavelli
Amanda
Amadeo Amodio
Dr. Dulcamara
Elisabeth Wiener
Greta (credited as Elisabeth Winer)
Roberto Bruni
Professor Julius Longbehn
Mircha Carven
Wolfgang
Clara Algranti
Teresa
Robert José Pomper
Young Venetian Gondolier/Christ
Renato Scarpa
Psychiatrist
Francesca Muzio
Maria
Anita Höfer
Prostitute at Station (credited as Anita Hofer)
Heinz Kreuger
University Rector
