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Peter Davison as The Doctor |
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Matthew Waterhouse as Adric |
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Janet Fielding as Tegan |
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Sarah Sutton as Nyssa |
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James Warwick as Scott |
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Clare Clifford as Kyle |
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Beryl Reid as Briggs |
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June Bland as Berger |
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Steve Morley as Walters |
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Suzi Arden as Snyder |
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Ann Holloway as Mitchell |
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Anne Clements as Trooper |
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Mark Straker as Trooper |
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Alec Sabin as Ringway |
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Mark Fletcher as Crewmember |
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Christopher Whittingham as Crewmember |
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David Banks as Cyber Leader |
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Mark Hardy as Cyber Lieutenant |
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William Hartnell as The Doctor (1) (archive footage) |
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Patrick Troughton as The Doctor (2) (archive footage) |
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Tom Baker as The Doctor (4) (archive footage) |
| Writing | Eric Saward | Writer |
| Directing | Peter Grimwade | Director |
| Production | John Nathan-Turner | Producer |
| Writing | Antony Root | Script Editor |
| Camera | Keith Hopper | Camera Operator |
| Sound | Alan Machin | Sound |
| Editing | Mike Houghton | Editor |
| Costume & Make-Up | Joan Stribling | Makeup Artist |
| Costume & Make-Up | Dinah Collin | Costume Design |
| Sound | Malcolm Clarke | Original Music Composer |
| Editing | Rod Waldron | Editor |
| Crew | Dick Mills | Special Sound Effects |
| Art | Bernard Lloyd-Jones | Production Design |
| Lighting | Fred Wright | Lighting Director |
| Sound | John Gatland | Sound |
| Visual Effects | Dave Chapman | Visual Effects |
| Production | Jane Ashford | Production Assistant |
| Visual Effects | Steve Bowman | Visual Effects Designer |
| Sound | Peter Howell | Theme Song Performance |
| Visual Effects | Richard Gregory | Modeling |
