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Douglas Fairbanks Jr. as Lucien Franchi / Mario Franchi |
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Ruth Warrick as Countess Isabelle Gravini |
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Akim Tamiroff as Baron Colonna |
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J. Carrol Naish as Lorenzo |
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H.B. Warner as Dr. Enrico Paoli |
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John Emery as Tomasso |
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Henry Wilcoxon as Count Victor Franchi |
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Gloria Holden as Countess Franchi |
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Walter Kingsford as Monsieur Dupre |
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Nana Bryant as Madame Dupre |
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Pedro de Cordoba as Count Gravini |
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Veda Ann Borg as Maria |
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William Farnum as Priest |
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Sarah Padden as Nurse |
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Manart Kippen as Martelli |
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Ruth Robinson as Angela |
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Richard Alexander as Castle Guard (Uncredited) |
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Wilson Benge as The Baron's Butler (Uncredited) |
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Henry Brandon as Marquis de Raveneau (Uncredited) |
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Anthony Caruso as Baron's Henchman (Uncredited) |
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James Craven as Giovanni (Uncredited) |
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Sonia Darrin as Opera Spectator (Uncredited) |
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Ralph Dunn as Messenger, Arturo's Steward (Uncredited) |
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Eddie Foster as Messenger, Alberto's Steward (Uncredited) |
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Frank Hagney as Torture Cell Guard (Uncredited) |
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Isabel La Mal as Opera Spectator (Uncredited) |
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Paul McVey as Cousin Philip Franchi (Uncredited) |
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Milburn Morante as Guard (Uncredited) |
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Edgar Norton as Colonna's Barber (Uncredited) |
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Isabel Randolph as Countess Isabelle's Mother (Uncredited) |
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Frank Richards as Colonna's Henchman (Uncredited) |
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Count Stefenelli as Opera Spectator (Uncredited) |
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Charles Stevens as Shepherd (Uncredited) |
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William Tannen as One of Lucien's Men (Uncredited) |
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Rick Vallin as De Revenau's Friend at Opera (Uncredited) |
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Roland Varno as De Revenau's Friend at Opera (Uncredited) |
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Dorothy Vernon as Townswoman at Celebration (Uncredited) |
| Directing | Gregory Ratoff | Director |
| Writing | George Bruce | Screenplay |
| Writing | Alexandre Dumas | Novel |
| Sound | Dimitri Tiomkin | Original Music Composer |
| Production | Edward Small | Producer |
| Writing | George Bruce | Adaptation |
| Editing | William F. Claxton | Editor |
| Camera | Harry Stradling Sr. | Director of Photography |
| Costume & Make-Up | Walter Plunkett | Costume Design |
| Writing | Howard Estabrook | Adaptation |
| Crew | Howard A. Anderson | Special Effects |
| Art | Nicolai Remisoff | Production Design |
| Sound | Earl Sitar | Sound |
| Art | Nicolai Remisoff | Art Direction |
| Sound | Joseph Nussbaum | Orchestrator |
| Editing | Grant Whytock | Supervising Editor |
| Crew | David Sharpe | Stunts |
| Production | Grant Whytock | Producer's Assistant |
| Art | Edward G. Boyle | Set Decoration |
| Sound | Truman K. Wood | Sound Effects Editor |
| Directing | Sam Nelson | Assistant Director |
| Costume & Make-Up | Don L. Cash | Makeup Artist |
| Crew | Adolph Bolm | Choreographer |
| Production | Max Golden | Production Manager |
| Crew | Ralph Faulkner | Fight Choreographer |
