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Patrick Troughton as The Doctor |
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Frazer Hines as Jamie McCrimmon |
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Wendy Padbury as Zoe Heriot |
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Ronald Allen as Rago |
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Kenneth Ives as Toba |
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Arthur Cox as Cully |
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Felicity Gibson as Kando |
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Giles Block as Teel |
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Johnson Bayly as Educator Balan |
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Walter Fitzgerald as Director Senex |
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Alan Gerrard as Bovem |
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Brian Cant as Chairman Tensa |
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John Cross as Council Member |
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Ronald Mansell as Council Member |
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Malcolm Terris as Etnin |
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Nicolette Pendrell as Tolata |
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Philip Voss as Wahed |
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John Hicks as Quark |
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Gary Smith as Quark |
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Freddie Wilson as Quark |
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Sheila Grant as Quark Voices |
| Writing | Henry Lincoln | Writer |
| Writing | Mervyn Haisman | Writer |
| Directing | Morris Barry | Director |
| Production | Peter Bryant | Producer |
| Writing | Derrick Sherwin | Script Editor |
| Sound | Delia Derbyshire | Theme Song Performance |
