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Tom Baker as The Doctor |
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Elisabeth Sladen as Sarah Jane Smith |
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Ian Marter as Harry Sullivan |
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Kevin Lindsay as Styre / The Marshal |
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Donald Douglas as Vural |
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Glyn Jones as Krans |
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Peter Walshe as Erak |
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Peter Rutherford as Roth |
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Terry Walsh as Zake |
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Brian Ellis as Prisoner |
| Directing | Rodney Bennett | Director |
| Writing | Bob Baker | Writer |
| Writing | Dave Martin | Writer |
| Writing | Robert Holmes | Script Editor |
| Production | Philip Hinchcliffe | Producer |
| Sound | Dudley Simpson | Original Music Composer |
| Production | Marion McDougall | Production Assistant |
| Crew | Dick Mills | Special Sound Effects |
| Visual Effects | John Friedlander | Visual Effects |
| Visual Effects | Tony Oxley | Visual Effects |
| Costume & Make-Up | Barbara Kidd | Costume Design |
| Costume & Make-Up | Sylvia James | Makeup Artist |
| Lighting | Tommy Thomas | Lighting Director |
| Sound | Vic Godrich | Sound |
| Art | Roger Murray-Leach | Production Design |
| Crew | Terry Walsh | Fight Choreographer |
| Production | George Gallaccio | Production Manager |
| Sound | Delia Derbyshire | Theme Song Performance |
