Professor James Bower
Montgomery Clift
Counselor Peter Heinzmann
Hardy Krüger
Professor James Bower (voice) (uncredited)
Eckart Dux
Orlovsky's Friend (uncredited)
Jean-Luc Godard
Fluchthelfer Franz Ritter (uncredited)
Eduard Linkers
Dr. Saltzer (voice) (uncredited)
Franz Rudnick
Tommy (uncredited)
Rolf Zacher
Frieda Hoffmann
Macha Méril
Orlovsky
David Opatoshu
Ingrid Weiß
Christine Delaroche
Dr. Saltzer
Hannes Messemer
Major Windisch
Karl Lieffen
Mädchen unter der Dusche
Uta Levka
Agent Adams
Roddy McDowall
Agent (uncredited)
Johannes Buzalski
Director
Raoul Lévy
Producer
Screenplay
Original Music Composer
Serge Gainsbourg
Director of Photography
Raoul Coutard
Novel
Paul Thomas
Executive Producer
Julien Derode
Editor
Albert Jurgenson
Co-Producer
Conrad von Molo
Robert Guenette