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Peter Davison as The Doctor |
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Sarah Sutton as Nyssa |
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Janet Fielding as Tegan Jovanka |
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Leonard Sachs as President Borusa |
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Elspet Gray as Chancellor Thalia |
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Michael Gough as Councillor Hedin |
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Paul Jerricho as The Castellan |
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Max Harvey as Cardinal Zorac |
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Colin Baker as Commander Maxil |
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Ian Collier as Omega/The Renegade |
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Neil Daglish as Damon |
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John D. Collins as Talor |
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Alastair Cumming as Colin Frazer |
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Andrew Boxer as Robin Stuart |
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Maya Woolfe as Hostel Receptionist |
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Guy Groen as Hostel Receptionist |
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Malcolm Harvey as The Ergon |
| Writing | Johnny Byrne | Writer |
| Directing | Ron Jones | Director |
| Writing | Eric Saward | Script Editor |
| Production | John Nathan-Turner | Producer |
| Sound | Roger Limb | Original Music Composer |
| Crew | Dick Mills | Special Sound Effects |
| Sound | Peter Howell | Theme Song Performance |
