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Alfredo Barbieri as Alumno Palmiro Varela |
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Amelita Vargas as Sirena Linfor |
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Esteban Serrador as Prof. Carlos Fuentes |
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Leonor Rinaldi as Srta. Tremebunda |
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Francisco Álvarez as Director del colegio |
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Marcos Caplán as Interventor General Palmiro Varela |
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Gogó Andreu as Mamertino Álvarez |
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Sandra Verani as Clotilde Cáceres |
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Tincho Zabala as Pilatos |
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Semillita as Alumno |
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Alfonso Pisano as |
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Mario Amaya as |
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Tono Andreu as |
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Carmen Campoy as Alumna |
| Directing | Enrique Carreras | Director |
| Writing | Julio Porter | Writer |
| Camera | Roque Funes | Director of Photography |
| Sound | Víctor Schlichter | Music |
| Editing | José Gallego | Editor |
| Art | Óscar Lagomarsino | Production Design |
