L'assassino si chiama Pompeo

Pompeo Sisini

Clara Sisini

Police Commissioner De Santis

Doorkeeper Adelina

Police Commissioner De Santis' Wife

Brigadiere Scarsella

The Talkative Doorkeeper

Fabrizio

Camillo Berardi

Commendator Mereghetti

The Beggar

Anna Brusatti

Pompeo Sisini's Secretary

The Attorney General

Ribetti

Journalist Labianca

Felice Pilla

The Petrol Pump Attendant

The Doorkeeper at Sisini's

Commendator Mereghetti's Wife

Guido Combi

The Forensic Examiner

Signora Longhi

Police Officer