7
100 min
The Doctor and Romana learn the second segment of the Key to Time is on the planet Calufrax. Yet they arrive on a planet called Zanak, which has been hollowed out and fitted with hyperspace engines, allowing its insane, half-robot Captain to materialise it around smaller planets and plunder their resources.
| Name | Character | Team | |
|---|---|---|---|
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Tom Baker | The Doctor | Unowned |
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Mary Tamm | Romana | Unowned |
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John Leeson | K-9 (voice) | Unowned |
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Bruce Purchase | The Pirate Captain | Unowned |
| Andrew Robertson | Mr. Fibuli | Unowned | |
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Rosalind Lloyd | Nurse | Unowned |
| David Warwick | Kimus | Unowned | |
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David Sibley | Pralix | Unowned |
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Ralph Michael | Balaton | Unowned |
| Primi Townsend | Mula | Unowned |