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Jon Pertwee as The Doctor |
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Caroline John as Liz Shaw |
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Nicholas Courtney as Brigadier Lethbridge-Stewart |
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Fulton Mackay as Dr. Quinn |
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Norman Jones as Major Baker |
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Peter Miles as Dr. Lawrence |
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Thomasine Heiner as Miss Dawson |
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John Newman as Spencer |
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Geoffrey Palmer as Masters |
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Ian Cunningham as Dr. Meredith |
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Paul Darrow as Captain Hawkins |
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Roy Branigan as Roberts |
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Bill Matthews as Davis |
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Nancie Jackson as Doris Squire |
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Gordon Richardson as Squire |
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Pat Gorman as Silurian |
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Paul Barton as Silurian |
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Simon Cain as Silurian |
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John Churchill as Silurian |
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Dave Carter as Silurian |
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Peter Halliday as Silurian (voices) |
| Directing | Timothy Combe | Director |
| Writing | Malcolm Hulke | Writer |
| Production | Barry Letts | Producer |
| Sound | Carey Blyton | Original Music Composer |
| Sound | Delia Derbyshire | Theme Song Performance |
| Writing | Terrance Dicks | Script Editor |
| Lighting | Ralph Walton | Lighting Director |
| Sound | John Staple | Sound |
| Art | Barry Newbery | Production Design |
| Camera | Fred Hamilton | Camera Operator |
| Editing | Bill Huthbert | Editor |
| Visual Effects | Jim Ward | Visual Effects |
| Costume & Make-Up | Christine Rawlins | Costume Design |
| Editing | Sam Upton | Editor |
