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Troy Donahue as Don Porter |
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Angie Dickinson as Lyda Kent |
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Rossano Brazzi as Roberto Orlandi |
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Suzanne Pleshette as Prudence Bell |
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Constance Ford as Daisy Bronson |
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Al Hirt as Al Hirt |
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Hampton Fancher as Albert Stillwell |
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Iphigenie Castiglioni as Contessa |
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Chad Everett as Young Man |
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Gertrude Flynn as Mrs. Riggs |
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Pamela Austin as Agnes Hutton |
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Lily Valenty as Angelina |
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Mary Patton as Mrs. Helen Bell |
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Maurice Wells as Mr. Bell |
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Nina Varela as Flower Stall Vendor (uncredited) |
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Norma Varden as Dean of Briarcroft College for Women (uncredited) |
| Costume & Make-Up | Jean Burt Reilly | Hair Supervisor |
| Directing | Russell Llewellyn | Assistant Director |
| Sound | M.A. Merrick | Sound |
| Sound | Murray Cutter | Orchestrator |
| Costume & Make-Up | Gordon Bau | Makeup Supervisor |
| Directing | Ottavio Oppo | Assistant Director |
| Directing | Delmer Daves | Director |
| Sound | Max Steiner | Original Music Composer |
| Editing | William H. Ziegler | Editor |
| Camera | Charles Lawton Jr. | Director of Photography |
| Costume & Make-Up | Howard Shoup | Costume Design |
| Writing | Irving Fineman | Novel |
| Art | Leo K. Kuter | Art Direction |
| Art | John P. Austin | Set Decoration |
| Production | Delmer Daves | Producer |
| Writing | Delmer Daves | Screenplay |
