Characters played by Luigi Pistilli
Detective John Norton
Characters played by Dagmar Lassander
Helen Sobiesky
Characters played by Anton Diffring
Ambassador Sobiesky
Characters played by Arthur O'Sullivan
Inspector Lawrence
Characters played by Werner Pochath
Marc Sobiesky
Characters played by Dominique Boschero
The Ambassador's mistress
Characters played by Renato Romano
Mandel
Characters played by Sergio Doria
Walter
Characters played by Ruth Durley
Norton's mother
Characters played by Valentina Cortese
Mrs. Sobiesky
Characters played by Emmet Bergin
Man in café
Characters played by Niall Toibin
Doctor