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Leo McKern as Galileo |
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Nigel Stock as Narrator / Sagredo / Cardinal Bellarmin / Pamphleteer / Peasant |
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Fergus McClelland as Andrea, the boy |
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Rosalie Crutchley as Mrs. Sarti |
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George Roubicek as Ludovico |
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Anthony Morton as Priuli, the Curator |
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Paul Endersby as The Doge / Christopher Clavius |
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Sheila Shand Gibbs as Virginia |
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Martin Sterndale as Matti |
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Michael Peake as Senator |
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Darryl Read as Prince Cosimo de Medici |
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Vernon Dobtcheff as Philosopher |
| Crew | Charles Laughton | Translator |
| Writing | Ursula Gray | Adaptation |
| Production | Peter Luke | Producer |
| Sound | Norman Kay | Music |
| Writing | ბერტოლტ ბრეხტი | Theatre Play |
| Costume & Make-Up | Christine Hillcoat | Makeup Artist |
| Directing | Charles Jarrott | Director |
| Writing | Harry Moore | Story Editor |
| Costume & Make-Up | Joyce Hammond | Costume Design |
| Art | Richard Wilmot | Production Design |