Helmut Berger as Il capitano di giustizia Arconati

Vittorio Caprioli as Il commissario di sanità Guglielmo Piazza

Francisco Rabal as Giacomo Mora - il barbiere

Lucia Bosè as Chiara Mora - la moglie di Giacomo

Annabella Incontrera as L'amante di Arconati

Pierluigi Aprà as Il senatore Monti

Martin Balsam as

Feodor Chaliapin Jr. as Il cardinale arcivescovo di Milano Federico (as Feodor Chaliapin)

Philippe Hersent as Guglielmo Migliavacca

Salvo Randone as Il protofisico Settala

Steffen Zacharias as Stefano Baruello

Andrea Aureli as

Bruna Cealti as

Ernesto Colli as Un giudice

Giuseppe Colombo as Commissario Porta Orientale

Teodoro Corrà as

Francesco D'Adda as

Filippo De Gara as Il notaio

Daniele Dublino as Il frate al processo Baruello

Pietro Fumelli as

Dada Gallotti as

Gengher Gatti as

Ettore Geri as

Rossano Jalenti as

Danika La Loggia as

Roberto Maldera as

Francesco Malo as

Evar Maran as Radaello

Dino Mele as Gaspare Piazza - il figlio di Guglielmo

Monica Monet as

Luigi Montini as

Franco Moraldi as

Jocelyne Munchenbach as (as Joceline Münchenbach)

Ferdinando Murolo as

Lorenzo Piani as

Mariano Rigillo as

Pupino Samonà as

Sergio Serafini as

Sergio Tofano as Il presidente del senato

Angelo Boscariol as Soldier (uncredited)