Rod Steiger as Edoardo Nottola

Salvo Randone as Professor De Angelis

Guido Alberti as Maglione

Marcello Cannavale as Friend of Nottola

Dante Di Pinto as President of Inquiry Committee

Alberto Conocchia as Friend of Nottola

Carlo Fermariello as De Vita

Terenzio Cordova as Prosecutor

Gaetano Grimaldi Filioli as Friend of Nottola

Angelo D'Alessandro as Balsamo

Vincenzo Metafora as Mayor

Dany París as Dany

Alberto Amato as City Councillor (uncredited)

Ennio Antonelli as Man in angry mob in Town Council (uncredited)

Renzo Farinelli as Jounalist (uncredited)

Pasquale Martino as Head of the archive (uncredited)

Mario Perelli as Head of the technical office (uncredited)

Franco Rigamonte as City Councillor (uncredited)

Renato Terra as Jounalist (uncredited)