Mario Colli

Private Investigator

Ria De Simone

Amalia

Alena Penz

Blond Doctor

Sofia Dionisio

Analyst

Gina Giuri

Gino Pagnani

Investigator's Assistant

Gianni Solaro

Angelo Bortolotti

Eolo Capritti

Von Stronfen

Tommy Polgár

Anacleto

Liana Tabacchino

Party guest (uncredited)