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Colin Baker as The Doctor |
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Nicola Bryant as Peri Brown |
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Robert Ashby as The Borad |
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Denis Carey as Old Man |
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Paul Darrow as Tekker |
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Eric Deacon as Mykros |
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Neil Hallett as Maylin Renis |
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Jeananne Crowley as Vena |
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David Ashton as Kendron |
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David Chandler as H.G. Welles |
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Tracy-Louise Ward as Katz |
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Peter Robert Scott as Brunner |
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Dicken Ashworth as Sezon |
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Steven Mackintosh as Gazak |
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Christine Kavanagh as Aram |
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Martin Gower as Tyheer / Bandrill Ambassador (voice) |
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Dean Hollingsworth as Android |
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James Richardson as Guardolier |
| Visual Effects | Dave Chapman | Visual Effects |
| Visual Effects | Kevin Molloy | Visual Effects Designer |
| Production | Alan Wareing | Production Manager |
| Sound | Andy Stacey | Sound Supervisor |
| Production | Jane Whittaker | Production Assistant |
| Writing | Eric Saward | Script Editor |
| Crew | Dick Mills | Special Sound Effects |
| Lighting | Henry Barber | Lighting Director |
| Costume & Make-Up | Alun Hughes | Costume Design |
| Camera | Alec Wheal | Camera Supervisor |
| Production | John Nathan-Turner | Producer |
| Art | Bob Cove | Production Design |
| Costume & Make-Up | Vanessa Poulton | Makeup Artist |
| Editing | Hugh Parson | Editor |
| Writing | Glen McCoy | Writer |
| Directing | Pennant Roberts | Director |
| Sound | Elizabeth Parker | Original Music Composer |
| Sound | Peter Howell | Theme Song Performance |
