Luigi Pistilli

ex-Inspector John Norton

Dagmar Lassander

Helene Sobieski

Anton Diffring

Ambassador Sobieski

Werner Pochath

Marc Sobieski (as Werner Pochat)

Dominique Boschero

Ambassador Sobieski's mistress

Renato Romano

Mandel, the chauffeur

Valentina Cortese

Madame Sobieski

Niall Tóibín

Doctor (uncredited)