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Franco Nero as Carabinieri Colonel Dante Matucci |
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Anthony Quinn as Bruno Manzini |
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Martin Balsam as Captain Steffanelli |
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Claudia Cardinale as Elena Leporello |
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Sybil Danning as Lili Anders |
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Christopher Lee as Prince Baldasar, the Director of Counterintelligence |
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Cleavon Little as Major Carl Malinowski, USMC |
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Paul L. Smith as The Surgeon |
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John Steiner as Captain Roditi |
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Eli Wallach as General Leporello |
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Renzo Palmer as Carabinieri Major Giorgione |
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Anita Strindberg as Princess Faubiani |
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Marino Masé as Captain Rigoli |
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Jacques Herlin as Woodpecker |
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Fortunato Arena as General Pantaleone |
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John Stacy as Concierge |
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Andrea Esterhazy as Minister of Defense |
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Larry Dolgin as Captain Roditi (voice) (uncredited) |
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Tony Brandt as Gianni Bandanelli, Pantaleone's Lawyer (uncredited) |
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Omero Capanna as Hitman (uncredited) |
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Attilio Dottesio as Party Guest of Manzini's (uncredited) |
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Tom Felleghy as Man at Funeral (uncredited) |
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Alfonso Giganti as Man at Funeral (uncredited) |
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Margherita Horowitz as Wife of Minister of Defense (uncredited) |
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Gitte Lee as Princess Baldasar (uncredited) |
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Nello Pazzafini as Manzini's Bodyguard (uncredited) |
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Amedeo Salamon as Banquet Guest (uncredited) |
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Frank Nuyen as Man at Pantaleone's funeral (uncredited) |
| Writing | Morris L. West | Novel |
| Camera | Marcello Gatti | Director of Photography |
| Production | Paul Maslansky | Producer |
| Editing | Katina Zinner | Editor |
| Writing | Robert Katz | Writer |
| Production | William R. Forman | Executive Producer |
| Production | Erwin C. Dietrich | Producer |
| Writing | Rod Serling | Adaptation |
| Editing | Claudio M. Cutry | Editor |
| Sound | Jerry Goldsmith | Original Music Composer |
| Writing | Robert Katz | Screenplay |
| Directing | Peter Zinner | Director |
| Production | Renzo Rossellini | Co-Producer |
| Art | Giantito Burchiellaro | Art Direction |
| Costume & Make-Up | Fabrizio Caracciolo | Costume Design |
| Production | Joe Pollini | Production Manager |
| Art | Fernando Valento | Construction Manager |
| Lighting | Stefano Marino | Electrician |
| Sound | Tonino Testa | Sound |
| Directing | Tony Brandt | Assistant Director |
| Editing | Patrizia Ceresani | Assistant Editor |
| Art | Wayne Fitzgerald | Title Designer |
| Crew | Angelo Ragusa | Stunts |
| Production | Lew Grade | Producer |
