- Gian Maria Volontè
- Police Inspector / Dottore
- Florinda Bolkan
- Augusta Terzi
- Gianni Santuccio
- Police Commissioner
- Orazio Orlando
- Brigadier Biglia
- Sergio Tramonti
- Antonio Pace
- Arturo Dominici
- Mangani
- Aldo Rendine
- Nicola Panunzio
- Massimo Foschi
- Augusta Terzi's Husband
- Aleka Paizi
- Housekeeper
- Vittorio Duse
- Canes
- Pino Patti
- Wiretapping Supervisor
- Salvo Randone
- Plumber
- Giuseppe Licastro
- Antonio Pace's Friend
- Filippo De Gara
- Agent
- Fulvio Grimaldi
- Patanè
- Ugo Adinolfi
- Agent
- Franco Marletta
- Agent
- Vincenzo Falanga
- Pallottella
- Roberto Bonanni
- Proietti
- Calogero Azzaretto
- Man Listening the Speech of Dottore
- Ugo Ballester
- Officer Attending the Final Confession
- Gianfranco Barra
- Interrogation Officer
- Franco Bellucci
- Policeman
- Antonio Calò
- Man Listening to Speech
- Aristide Caporale
- Man at Police Headquarters
- Tony Casale
- Man at Police Headquarters
- Franz Colangeli
- Man Listening to Speech
- Ferruccio Fregonese
- Man Listening to Speech
- Ettore Geri
- Officer Attending the Final Confession
- Alfonso Giganti
- Policeman
- Franco Magno
- Officer Attending the Final Confession
- Enrico Marciani
- Officer Attending the Final Confession
- Romano Milani
- Policeman
- Enzo Mondino
- Officer Attending the Final Confession
- Romano Moraschini
- Policeman
- Mario Pascucci
- Policeman
- Fulvio Pellegrino
- Policeman Listening the Speech of Dottore
- Elio Petri
- Policeman Sleeping During Dottore's Address
- Manlio Salvatori
- Man Listening to Speech
- Mario Silvestri
- Officer Attending the Final Confession
- Alessandro Tedeschi
- Man Listening to Speech
- Armando Tortorici
- Arrested Contestant
