Antonio Sabàto ( Antonio Sabàto )

Commissioner Fernando Solmi

Luciana Paluzzi ( Luciana Paluzzi )

Inspector Giovanna Nunziante

Enrico Maria Salerno ( Enrico Maria Salerno )

Police Chief Carraro

Gabriele Ferzetti ( Gabriele Ferzetti )

Professor Andrea Icardi

Elio Zamuto ( Elio Zamuto )

Professor Giacometti

Ettore Manni ( Ettore Manni )

Enrico Tummoli

Marino Masé ( Marino Masé )

Franz Hekker - 'Francesco Pagano'

Bedy Moratti ( Bedy Moratti )

Emilia Icardi

Adriana Fiore ( Adriana Fiore )

Stripper

Franco Ressel ( Franco Ressel )

Gynaecologist

Margherita Horowitz ( Margherita Horowitz )

Antonietta - Icardi's maid

Tino Bianchi ( Tino Bianchi )

Police Commissioner

Valentino Macchi ( Valentino Macchi )

Petrol Station Attendant

Andrea Lala ( Andrea Lala )

Marshall Attardi

Benedetto Benedetti ( Benedetto Benedetti )

Mario Erpichini ( Mario Erpichini )

Minister Mordini

Anna Mirafiore ( Anna Mirafiore )

Adriano Amidei Migliano ( Adriano Amidei Migliano )

Dog team leader

Attilio Dottesio ( Attilio Dottesio )

Forensic Doctor

Ida Di Benedetto ( Ida Di Benedetto )

House Madam

Leila Durante ( Leila Durante )

Nurse (as Leila Ducci)

Gloria Piedimonte ( Gloria Piedimonte )

Carla

Andrea Scotti ( Andrea Scotti )

Head of Scientific Team

Fernando Cerulli ( Fernando Cerulli )

Morgue Watchman

Fulvio Mingozzi ( Fulvio Mingozzi )

Police Inspector

Salvatore Billa ( Salvatore Billa )

Man in the city

Adriana Falco ( Adriana Falco )

Fiorella Icardi

Ilona Staller ( Ilona Staller )

Prostitute

Nestore Cavaricci ( Nestore Cavaricci )

Policeman (uncredited)