Paul Hubschmid

as Prof. Nesbitt

as Johnnie Vulkan

as Harald Berger / Henri Mercier (in French version)

as Ingenieur Harald Berger

as John McLaren

as Simon

as Dr. Jean Berner

as Hassan (as Paul Christian)

as Baron von Bernried

as Doctor Ventoux / 'Le chat'

as Hugo Raeber

as Roberto Costa

as Hans Joachim Kremer

as Commarro

as Harald Berger (as Paul Christian)

as Parrish

as Vancruysen

as Joachim Steigenwald

as Götz Renner

as Herr Beiber

as Paul Finney, the Upperseven

as Werner Homfeld

as Wilhelm

as Dr. Benn Wittich, Biologe u. Chemiker

as Robert Florian

as Georg Lindberg

as Frederich

as Paul Heiden

as Robert - Journalist

as Ferdinand Hofer

as Diplomat

as Jean-Marc Oesterlin

as Major von Tellheim

as Karl Brandtstetter

as Van Cleef

as Rolf Zeller

as Imre von Hontos, Maria Ilonas Bruder

as von Brunner

as Botschafter Eliot Anderson

as Francesco Jimenez

as Self - Guest

as Self

as Arthur Brecht

as Self - Candidate

as Georg

as Robert Ellin

as Robert Langen

as Professor Martin Wiegand

as Alfred Schott

as Fredy

as Conrad Hegner

as Fritz Hablützel

as Prokesch

as Alfiere Lorenzo Contarini

as Baron Federsen

as Tony Burger

as Reinhold Wipf

as Hans Lieven

as Willibald Mack

as Johnny Zamaris

as Bölsterli

as Jo, ein amerikanischer Soldat

as Raymond Montandon, Kunstmaler

as Armando Cellini

as Premierleutnant Hofstede

as Hans Leitner

as Alain Compton

as Reiner Dietrich

as Franz Liszt

as Karl Marek (as Paul Christian)

as George

as Sir Frederick

as Ned Parker

as Hans-Rudolf