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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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James Copeland as Selris |
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James Cairncross as Beta |
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Gilbert Wynne as Thara |
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Philip Madoc as Eelek |
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Terence Brown as Abu |
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Madeleine Mills as Vana |
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Richard Ireson as Axus |
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Maurice Selwyn as Custodian |
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Bronson Shaw as Student |
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Roy Skelton as Kroton Voice |
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Patrick Tull as Kroton Voice |
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Robert La'Bassiere as Kroton |
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Miles Northover as Kroton |
| Directing | David Maloney | Director |
| Writing | Robert Holmes | Writer |
| Writing | Terrance Dicks | Script Editor |
| Production | Peter Bryant | Producer |
| Visual Effects | Bill King | Visual Effects |
| Sound | Brian Hodgson | Original Music Composer |
| Sound | Delia Derbyshire | Theme Song Performance |
| Art | Raymond London | Production Design |
| Crew | Brian Hodgson | Special Sound Effects |
| Lighting | Howard King | Lighting Director |
| Costume & Make-Up | Sylvia James | Makeup Artist |
| Sound | John Holmes | Sound |
| Editing | Martyn Day | Editor |
| Camera | Alan Jonas | Camera Operator |
| Crew | Fred Wright | Technical Supervisor |
| Sound | Ron Blight | Sound |
