Gian Maria Volonté ( Gian Maria Volonté )

Dottore

Florinda Bolkan ( Florinda Bolkan )

Augusta Terzi

Gianni Santuccio ( Gianni Santuccio )

Police Prefect

Orazio Orlando ( Orazio Orlando )

Biglia

Sergio Tramonti ( Sergio Tramonti )

Antonio Pace

Arturo Dominici ( Arturo Dominici )

Mangani

Aldo Rendine ( Aldo Rendine )

Nicola Panunzio

Massimo Foschi ( Massimo Foschi )

Augusta's Husband

Aleka Paizi ( Αλέκα Παΐζη )

Governess

Vittorio Duse ( Vittorio Duse )

Canes

Pino Patti ( Pino Patti )

Wiretapping Dep. Head

Salvo Randone ( Salvo Randone )

Plumber

Fulvio Grimaldi ( Fulvio Grimaldi )

Patanè

Giuseppe Aguinaldo Nicastro ( Giuseppe Aguinaldo Nicastro )

Filippo De Gara ( Filippo De Gara )

Ugo Adinolfi ( Ugo Adinolfi )

Franco Marletta ( Franco Marletta )

Giacomo Bellini ( Giacomo Bellini )

Giuseppe Terranova ( Giuseppe Terranova )

Vincenzo Falanga ( Vincenzo Falanga )

Roberto Bonanni ( Roberto Bonanni )

Guido Buzzelli ( Guido Buzzelli )

Gino Usai ( Gino Usai )

Calogero Azzaretto ( Calogero Azzaretto )

Man Listening the Speech of Dottore (uncredited)

Gianfranco Barra ( Gianfranco Barra )

Interrogation Officer (uncredited)

Aristide Caporale ( Aristide Caporale )

Man at Police Headquarters (uncredited)

Ettore Geri ( Ettore Geri )

Officer Attending the Final Confession (uncredited)

Alfonso Giganti ( Alfonso Giganti )

Policeman (uncredited)

Franco Magno ( Franco Magno )

Officer Attending the Final Confession (uncredited)

Enrico Marciani ( Enrico Marciani )

Officer Attending the Final Confession (uncredited)

Enzo Mondino ( Enzo Mondino )

Officer Attending the Final Confession (uncredited)

Mario Pascucci ( Mario Pascucci )

Policeman (uncredited)

Fulvio Pellegrino ( Fulvio Pellegrino )

Policeman Listening the Speech of Dottore (uncredited)

Elio Petri ( Elio Petri )

Policeman Sleeping During Dottore's Address (uncredited)

Mario Silvestri ( Mario Silvestri )

Officer Attending the Final Confession (uncredited)

Alessandro Tedeschi ( Alessandro Tedeschi )

Man Listening to Speech (uncredited)

Armando Tortorici ( Armando Tortorici )

Arrested Contestant (uncredited)

Romano Moraschini ( Romano Moraschini )

Policeman (uncredited)

Ugo Ballester ( Ugo Ballester )

Officer Attending the Final Confession (uncredited)