The Weapon, the Hour, the Motive

Renzo Montagnani

Inspector Boito

Bedy Moratti

Orchidea Durantini

Eva Czemerys

Giulia Pisani

Salvatore Puntillo

Moriconi

Claudia Gravy

Sister Tarquinia

Alcira Harris

Arturo Trina

Ferruccio

Adolfo Belletti

Anselmo Barsetti - The Sacristan

Arnaldo Bellofiore

Francesco D'Adda

Pisani - Giulia's Husband

Filippo Pompa Marcelli

(as Filippo Marcelli)

Gina Mascetti

Mother Superior

Lorenzo Piani

Maurizio Bonuglia

Don Giorgio

Raniero Dorascenzi

Photographer (uncredited)

Pietro Innocenzi

Photographer (uncredited)