Franco Nero

Character: Carabinieri Colonel Dante Matucci

Anthony Quinn

Character: Bruno Manzini

Martin Balsam

Character: Captain Steffanelli

Claudia Cardinale

Character: Elena Leporello

Sybil Danning

Character: Lili Anders

Christopher Lee

Character: Prince Baldasar, the Director of Counterintelligence

Cleavon Little

Character: Major Carl Malinowski, USMC

Paul L. Smith

Character: The Surgeon

John Steiner

Character: Captain Roditi

Eli Wallach

Character: General Leporello

Renzo Palmer

Character: Carabinieri Major Giorgione

Anita Strindberg

Character: Princess Faubiani

Marino Masé

Character: Captain Rigoli

Jacques Herlin

Character: Woodpecker

Fortunato Arena

Character: General Pantaleone

John Stacy

Character: Concierge

Andrea Esterhazy

Character: Minister of Defense

Larry Dolgin

Character: Captain Roditi (voice) (uncredited)

Tony Brandt

Character: Gianni Bandanelli, Pantaleone's Lawyer (uncredited)

Omero Capanna

Character: Hitman (uncredited)

Attilio Dottesio

Character: Party Guest of Manzini's (uncredited)

Tom Felleghy

Character: Man at Funeral (uncredited)

Alfonso Giganti

Character: Man at Funeral (uncredited)

Margherita Horowitz

Character: Wife of Minister of Defense (uncredited)

Gitte Lee

Character: Princess Baldasar (uncredited)

Nello Pazzafini

Character: Manzini's Bodyguard (uncredited)

Amedeo Salamon

Character: Banquet Guest (uncredited)

Frank Nuyen

Character: Man at Pantaleone's funeral (uncredited)