Claudia Cardinale
Aliki
Tony Musante
John Dhannay
John Forsythe
The American Ambassador
John Steiner
Donald Grayson
Francesco Carnelutti
Agostino
Luciano Catenacci
Vincent
Renzo Palmer
Parenti
Fabrizio Jovine
Inspector Moreno
Giovanni Di Benedetto
Foreign Secretary (as Gianni De Benedetto)
Angela Goodwin
The Ambassador's Wife
Anna Zinnemann
Renata
Wolfango Soldati
Harry Lambert