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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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Nicholas Courtney as Brigadier Lethbridge-Stewart |
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John Levene as RSM Benton |
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Patricia Maynard as Miss Winters |
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Michael Kilgarriff as The Robot |
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Edward Burnham as Professor Kettlewell |
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Alec Linstead as Jellicoe |
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Timothy Craven as Short |
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Clive Barrie as Phillips |
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Walter Goodman as Joseph Chambers |
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Jon Pertwee as The Doctor |
| Directing | Christopher Barry | Director |
| Writing | Terrance Dicks | Writer |
| Writing | Robert Holmes | Script Editor |
| Production | Barry Letts | Producer |
| Sound | Dudley Simpson | Original Music Composer |
| Costume & Make-Up | James Acheson | Costume Design |
| Art | Ian Rawnsley | Production Design |
| Costume & Make-Up | Judy Clay | Makeup Artist |
| Production | Peter Grimwade | Production Assistant |
| Crew | Dick Mills | Special Sound Effects |
| Lighting | Nigel Wright | Lighting Director |
| Sound | John Holmes | Sound |
| Sound | Trevor Webster | Sound |
| Lighting | John Mason | Lighting Director |
| Sound | Vic Godrich | Sound |
| Visual Effects | Clifford Culley | Visual Effects |
| Production | George Gallaccio | Production Manager |
| Sound | Delia Derbyshire | Theme Song Performance |
