Asst. DA Vittoria Stori

Giovanna Ralli

Mr. Polvesi

Farley Granger

Insp. Silvestri

Claudio Cassinelli

Commissioner Valentini

Mario Adorf

Bruno Paglia

Franco Fabrizi

Miss Polvesi

Marina Berti

Marcello Tosti

Paolo Turco

Prosecutor

Corrado Gaipa

Rosa

Micaela Pignatelli

Silvia Polvesi

Sherry Buchanan

Sgt. Giardina

Ferdinando Murolo

Napoli

Salvatore Puntillo

Coroner

Attilio Dottesio

Polvesi's Housemaid

Eleonora Morana

Patrizia Valentini

Roberta Paladini

Reporter

Luigi Antonio Guerra

Laura

Renata Moar

Giuliana Bigi

Adriana Falco

Mrs. Talenti

Clara Zovianoff

Agt. Russo

Leonardo Severini

Reporter

Lorenzo Piani

Paglia's Lawyer (uncredited)

Giancarlo Badessi

Cop

Bruno Alias

Doctor (uncredited)

Francesco D'Adda

Cop (uncredited)

Giuseppe Marrocco

Prof. Beltrame (uncredited)

Steffen Zacharias

Cop (uncredited)

Luciano Zanussi