On screen
Cast
12 credited performers
Luigi Pistilli
ex-Inspector John Norton
Dagmar Lassander
Helene Sobieski
Anton Diffring
Ambassador Sobieski
Artwork unavailable
Arthur O'Sullivan
Inspector Lawrence
Werner Pochath
Marc Sobieski (as Werner Pochat)
Dominique Boschero
Ambassador Sobieski's mistress
Renato Romano
Mandel, the chauffeur
Artwork unavailable
Sergio Doria
Walter
Artwork unavailable
Ruth Durley
Norton's mother
Valentina Cortese
Madame Sobieski
Artwork unavailable
Emmet Bergin
Man in café (uncredited)
Niall Tóibín
Doctor (uncredited)