Onder andere met: Tony Musante (Sam Dalmas), Suzy Kendall (Julia), Enrico Maria Salerno (Inspector Morosini), Eva Renzi (Monica Ranieri), Umberto Raho (Alberto Ranieri), Renato Romano (Professor Carlo Dover (as Raf Valenti)), Giuseppe Castellano (Monti), Mario Adorf (Berto Consalvi), Pino Patti (Faiena), Gildo Di Marco (Garullo), Rosita Torosh (4th Victim (as Rosa Toros)), Omar Bonaro (Police Detective), Fulvio Mingozzi (Police Detective), Werner Peters (Antique Dealer), Karen Valenti (Tina, 5th Victim)