Directed by
| Enrico Guazzoni | ||
Writing Credits (in alphabetical order)
| Guido Cantini | ... | (screenplay) |
| Lucio D'Ambra | ... | (story) |
| Alberto Spaini | ... | (screenplay) |
| Nando Vitali | ... | (screenplay) |
Cast (in credits order)
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Luigi Pavese | ... | Antonio Meucci |
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Leda Gloria | ... | Ester Meucci, sua moglie |
| Nerio Bernardi | ... | Alexander Graham Bell | |
| Greta Gonda | ... | Consuelo Ispahan | |
| Osvaldo Valenti | ... | Giuseppe Garibaldi giovane | |
| Armando Migliari | ... | Elisha Gray | |
| Rubi Dalma | ... | Liliana Montes | |
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Anna Valpreda | ... | Mary |
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Rudi Dal Pra | ... | Ramiro Gomez (as Rudi D'Alprà) |
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Olinto Cristina | ... | Wilson |
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Emilio Petacci | ... | Sam Cloton |
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Nino Pavese | ... | L'onorevole Closter |
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Gino Bianchi | ... | Parodi |
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Aristide Garbini | ... | Fleming |
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Oreste Fares | ... | Il medico |
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Nino Marchesini | ... | Il presidente del tribunale |
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Eugenio Duse | ... | Il giornalista |
| Cesare Fantoni | ... | L'avvocato difensore | |
| Rest of cast listed alphabetically: | |||
|
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Clara Andri | ||
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Franco Barci | ||
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Ernesto Bianchi | ||
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Gildo Bocci | ||
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Vasco Cataldo | ||
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Tullio Galvani | ||
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Bebi Nucci | ||
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Luciano Seno | ||
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Gina Spicchiesi | ||
|
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Franca Volpini | ||
|
|
Olga von Kollar | ||
Produced by
| Angelo Tarchi | ... | producer |
Music by
| Ezio Carabella | ||
Cinematography by
| Fernando Risi | ||
Editing by
| Pietro Benedetti | ||
Production Design by
| Dante Bruscani | ||
Art Direction by
| Pietro Monastero | ||
Set Decoration by
| Giorgis | ||
| Mario Rappini | ... | (uncredited) |
Costume Design by
| Fabrizio Carafa | ... | (as Fabrizio Carafa D'Andria) |
Production Management
| Ferruccio Biancini | ... | production manager |
Second Unit Director or Assistant Director
| Tullio Galvani | ... | assistant director |
| Ferdinando Maria Poggioli | ... | assistant director |
Art Department
| Italo Tomassi | ... | painter (uncredited) |
Sound Department
| Leopoldo Rosi | ... | sound |
Camera and Electrical Department
| Amerigo Gengarelli | ... | camera operator (as Ghigo Gengarelli) |
Music Department
| Ezio Carabella | ... | musical director |
| Carmine Rizzo | ... | musical director |