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Edward G. Robinson as Sir George McDowell |
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Adolfo Celi as Bayon / Guinet |
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Maria Grazia Buccella as Monique Brissard |
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Terry-Thomas as Jerome |
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Manuel Zarzo as Fouchard |
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George Rigaud as Il barone |
| Crew | Antonio Macasoli | Cinematography |
| Editing | Mario Morra | Editor |
| Art | Rafael Ferri | Set Decoration |
| Sound | Mario Migliardi | Music |
| Directing | Roberto Fizz | Director |
