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Jon Pertwee as The Doctor |
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Katy Manning as Jo Grant |
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Nicholas Courtney as Brigadier Lethbridge-Stewart |
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Richard Franklin as Captain Mike Yates |
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John Levene as Sergeant Benton |
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Roger Delgado as The Master |
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Pik-Sen Lim as Captain Chin Lee |
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Raymond Westwell as Prison Governor |
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Michael Sheard as Dr. Roland Summers |
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Simon Lack as Professor Kettering |
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Fernanda Marlowe as Corporal Bell |
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Neil McCarthy as George Patrick Barnham |
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Clive Scott as Arthur Linwood |
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Roy Purcell as Chief Prison Officer Powers |
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Eric Mason as Senior Prison Officer Green |
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Bill Matthews as Prison Officer |
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Barry Wade as Prison Officer |
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Dave Carter as Prison Officer |
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Martin Gordon as Prison Officer |
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William Marlowe as Mailer |
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Hayden Jones as Vosper |
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Kristopher Kum as Fu Peng |
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Tommy Duggan as Senator Alcott |
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David Calderisi as Charlie |
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Patrick Godfrey as Major Cosworth |
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Johnny Barrs as Fuller |
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Matthew Walters as Main Gates Prisoner |
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Timothy Combe as Prisoner (uncredited) |
| Directing | Timothy Combe | Director |
| Writing | Don Houghton | Writer |
| Writing | Terrance Dicks | Script Editor |
| Production | Barry Letts | Producer |
| Visual Effects | Jim Ward | Visual Effects |
| Costume & Make-Up | Jan Harrison Shell | Makeup Artist |
| Lighting | Eric Monk | Lighting Director |
| Sound | Chick Anthony | Sound |
| Art | Ray London | Production Design |
| Camera | Fred Hamilton | Camera Operator |
| Camera | Max Samett | Camera Operator |
| Editing | Howard Billingham | Editor |
| Editing | Sam Upton | Editor |
| Editing | Roger Harvey | Editor |
| Costume & Make-Up | Bobi Bartlett | Costume Design |
| Sound | Dudley Simpson | Original Music Composer |
| Sound | Delia Derbyshire | Theme Song Performance |
