Gian Maria Volonté as Dottore

Florinda Bolkan as Augusta Terzi

Gianni Santuccio as Police Prefect

Orazio Orlando as Biglia

Sergio Tramonti as Antonio Pace

Arturo Dominici as Mangani

Aldo Rendine as Nicola Panunzio

Massimo Foschi as Augusta's Husband

Aleka Paizi as Governess

Vittorio Duse as Canes

Pino Patti as Wiretapping Dep. Head

Salvo Randone as Plumber

Fulvio Grimaldi as Patanè

Giuseppe Aguinaldo Nicastro as

Filippo De Gara as

Ugo Adinolfi as

Franco Marletta as

Giacomo Bellini as

Giuseppe Terranova as

Vincenzo Falanga as

Roberto Bonanni as

Guido Buzzelli as

Gino Usai as

Calogero Azzaretto as Man Listening the Speech of Dottore (uncredited)

Gianfranco Barra as Interrogation Officer (uncredited)

Aristide Caporale as Man at Police Headquarters (uncredited)

Ettore Geri as Officer Attending the Final Confession (uncredited)

Alfonso Giganti as Policeman (uncredited)

Franco Magno as Officer Attending the Final Confession (uncredited)

Enrico Marciani as Officer Attending the Final Confession (uncredited)

Enzo Mondino as Officer Attending the Final Confession (uncredited)

Mario Pascucci as Policeman (uncredited)

Fulvio Pellegrino as Policeman Listening the Speech of Dottore (uncredited)

Elio Petri as Policeman Sleeping During Dottore's Address (uncredited)

Mario Silvestri as Officer Attending the Final Confession (uncredited)

Alessandro Tedeschi as Man Listening to Speech (uncredited)

Armando Tortorici as Arrested Contestant (uncredited)

Romano Moraschini as Policeman (uncredited)

Ugo Ballester as Officer Attending the Final Confession (uncredited)