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Fidel Pintos as Mr. Simpson / falso Brummel |
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Delfy de Ortega as Elena de Buckingham/ alcaldesa |
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Amadeo Novoa as George Byron "el hermoso Brummel" |
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Carlos Enríquez as Archivaldo Mortimer |
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Alberto Terrones as Principe de Gales |
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Pedro Aleandro as Iván |
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Julián Bourges as Jack |
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Julia Sandoval as Dueña de la pensión |
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Susana Campos as Sonia |
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Mario Pocovi as Terrorista irlandes |
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Alejandro de la Rúa as |
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Vicente Rubino as Antoine, el peluquero |
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Tito Li Fausi as |
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Elsa Márquez as |
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Irma Roy as Isabel |
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Daniel Tedeschi as |
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Carlos Barbetti as Espadaquini |
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Lucio Deval as Marcell de Polignac |
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Ricardo Legarreta as |
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María Rofrigo as |
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Leónidas Spinzi as |
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Rodolfo Maldonado as |
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Rey de Zarraga as |
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Vicente Pampín as |
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Natty Paredes as |
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Nicolás Rella as |
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Juán Bernardo as |
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Enrique Esbiza as |
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Oscar Juárez as |
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Leandro Battilana as |
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Fernando Campos as |
| Sound | Juan M. Arechavala | Sound |
| Art | Gori Muñoz | Art Department Coordinator |
| Sound | Tito Rivero | Music |
| Camera | Carmelo Labórrico | Camera Car |
| Art | Felipe Milano | Decorator |
| Crew | Esteban Palos | Choreographer |
| Camera | Américo Ross | Director of Photography |
| Camera | Armando Bugallo | Camera Car |
| Sound | Víctor Bobadilla | Sound |
| Production | Manuel M. Alba | Producer |
| Art | Juan Romano | Decorator |
| Writing | Manuel M. Alba | Writer |
| Writing | Abel Santacruz | Writer |
| Directing | Julio Saraceni | Director |
