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Niní Marshall as Dionisia / Madmoiselle Mosquita |
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Enrique de Rosas as Mayor Aquiles Chateau Lefitte |
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Francisco Charmiello as Don Serafín, organista del colegio / Sr. Floridor |
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Amalia Sánchez Ariño as Eduviges Chateau Lafitte, directora del colegio |
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Pierina Dealessi as Vicedirectora |
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Herminia Franco as Madmoiselle Corina |
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Adrián Cuneo as Teniente Fernando de Chantilly |
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Julián Bourges as Sr. Dubois |
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Adriana Alcock as |
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Olimpio Bobbio as |
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Margarita Burke as |
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Jorge Villoldo as |
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María Ferez as |
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Lola Márquez as |
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Dorita Acosta as |
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Norma Giménez as |
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Francisco Bastardi as |
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Carlos Belluci as |
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Betty Norton as |
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Narciso Ibáñez as |
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Julia Sandoval as |
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Germán Vega as |
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Gonzalo Palomero as |
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Warly Ceriani as |
| Production | Edgardo Togni | Production Assistant |
| Costume & Make-Up | Vicenta Miguel | Hair Designer |
| Camera | Roque Giacovino | Camera Car |
| Sound | Bert Rosé | Music |
| Costume & Make-Up | Bruno Boval | Makeup Artist |
| Writing | Henri Meilhac | Author |
| Sound | Mario Fezia | Sound |
| Writing | Albert Millaud | Author |
| Sound | Carlos Marín | Sound |
| Directing | Luis César Amadori | Director |
| Camera | Alberto Etchebehere | Director of Photography |
| Art | Raúl Soldi | Set Designer |
| Writing | Luis César Amadori | Screenplay |
| Editing | Paul Hervé | Editor |
| Costume & Make-Up | Both Vélez | Costume Designer |
| Directing | Esteban Etcheverrito | Assistant Director |
