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30 January - 6 March 1971

Average Viewing Figure: 7.6M


The Master plans to use an alien mind parasite to trigger a world war which could destroy the planet


Jon Pertwee (The Doctor), Katy Manning (Jo Grant), Roger Delgado (The Master), Nicholas Courtney (Brigadier Lethbridge-Stewart)

Richard Franklin (Captain Yates), John Levene (Sergeant Benton), William Marlowe (Mailer), Haydn Jones (Vosper)

Pik-Sen Lim (Captain Chin Lee), Kristopher Kum (Fu Peng), Raymond Westwell (Prison Governor), Michael Sheard (Dr Summers)

Patrick Godfrey (Major Cosworth), Simon Lack (Professor Kettering), Neil McCarthy (Barnham), Tommy Duggan (Senator Alcott)

Fernanda Marlowe (Corporal Bell), Clive Scott (Linwood), Roy Purcell (Chief Prison Officer Powers)

Eric Mason (Senior Prison Officer Green), Bill Matthews, Barry Wade, Dave Carter, Martin Gordon (Prison Officers)

David Calderisi (Charlie), Johnny Barrs (Fuller), Matthew Walters (Main Gates Prisoner)

Uncredited Cast

Leslie Weekes, Tony Jenkins (Prison Officers), Desmond Verini, Dennis Balcombe, Phillip Webb, George Ballantine, Francis Batsoni

Leonard Kingston, Ned Hood, Cy Town, Alistair McFarlane, Paul Blomley, Roger Marsden, Wolfgang van Jergen, Richard Atherton

Val Musetti, Michael Carter, Les Conrad, Les Clark, Derek Martin, Max Diamond, Bob Blaine, Derek Chafer, Ricky Lancing

Johnny Clump, Pat Donahue, Michael Ely, Timothy Combe (Prisoners), Desmond Verini, Dennis Balcombe, Phillip Webb

George Ballantine, Francis Batsoni, Leonard Kingston, Ned Hood, Cy Town, Alistair McFarlane, Paul Blomley (Audience)

Maureen Race (Female Student), Charless Pickless, Charles Finch (Medical Orderlies), Francis Batsoni (Corpse of Cheng Teik)

Francis Williams (Master's Chauffeur), Paul Tann (Chinese Aide), Nick Hobbs (American Aide) 


Don Houghton (Writer), Ron Grainer (Title Music), Dudley Simpson (Incidental Music), Max Sarnett, Fred Hamilton (Film Cameramen)

Howard Billingham (Film Editor), HAVOC (Fight Arranger), HAVOC (Action), James Ward (Visual Effects)

Sam Upton, Roger Harvey (Videotape Editors), Bobi Bartlett (Costumes), Jan Harrison (Make-Up), Eric Monk (Studio Lighting)

Chick Anthony (Sound), Brian Hodgson (Special Sound), Terrance Dicks (Script Editor), Ray London (Designer)

Barry Letts (Producer), Timothy Combe (Director)

Uncredited Cast

Dave Havard (Effects Assistants), Gerry Burrows (Grams Operator), John O'Shaunessy (Floor Assistant), Graham Southcote (Technical Manager)

Mike Catherwood (Vision Mixer)


Filming Locations

  • Dover Castle, Dover, Kent

  • Archer's Court Road, Whitfield, Kent

  • Alland Grange, RAF Manston, Kent

  • RAF Swingate Dover, Kent

  • Pineham Road, Pineham, Kent

  • Cornwall Gardens, Kensington, Lodnon

  • Cornwall Walk Gardens, Kensington, London

  • Commonwealth Institute, Kensington, London

  • Television Centre: Studio 3

  • Television Centre: Studio 6


  • Mailer [shot and killed by the Brigadier]

  • Vosper [killed by the Keller Machine]

  • Prison Governor [shot and killed by Mailer]

  • Professor Kettering [killed by the Keller Machine]

  • Barnham [run over by The Master]

  • Linwood [killed by the Keller Machine]

  • Senior Prison Officer Green [shot and killed]

  • Charlie [killed by the Keller Machine]

  • Prison Officers [killed in many ways]

  • Prisoners [killed in many ways]

Production Days

  • 15 Days between Monday 26 October - Saturday 19 December 1970

Production Errors

  1. A female sneeze can be heard coming from somewhere in the studio during the office scene in episode four

  2. When thrown into the cell by The Master's thugs, the wall visibly shakes 

  3. During a fight sequence where water is spilled, The Master visibly slips twice ​​

Working Titles

  • Pandora Machine


​The Mind of Evil essentially aspires to be a cult-Who-classic and it is, because it works, just about, and remains one of the underrated highlights of the Third Doctor era. There’s an underlying commentary about British society, and attitudes towards hard-nosed criminals. Episode 1 has an excellent monologue from Professor Kettering, and even some of main characters display uneasy feelings being near Barnham, even though his ruthless criminal persona has been replaced with that of a handicapped child.
   The bulk of the story is basically an action-packed thriller which has to juggle with three major plot points 1) the Keller Machine, 2) the Peace Conference, and 3) the capture of the missile. The plot threads are continually disconnected, and each of them becomes a focal point for an episode or two, but the sense of universal destruction never wains, and each of them could have made up a decent story entirely of its own accord. The scripts are a much stronger contribution from Don Houghton mixing together satire and some comedic moments, but they still suffer from slight repetition. There are two prison heists within 2 episodes, and the first four cliffhangers all centre around the same setup, but everything else is highly entertaining and the structure keeps everything together even when the narrative loses momentum for brief periods. 
Impressive production values are evident throughout and it’s an impressive attempt to keep The Doctor isolated largely within one location, and episode 5 has an extraordinary heist scene, and the cliffhanger is possibly the best of all time. This was Timothy Combe’s last assignment on Doctor Who; he went over budget, and was sadly never utilised on the show again. We’ll miss him.
   The Keller Machine provides a chilling monster for The Doctor to battle, and is more than ‘a simple box of tricks’. The Master’s worst fear is THE DOCTOR! An intriguing statement and this provides subtle clarity on the long standing unseen relationship between one and another. We as viewers, would also find the Keller Machine unsettling; we all fear facing our dark sides, and we all suffer phobias which could be projected back on us; an excellent commentary on the human race as a whole. Aside from the Keller Machine, the rest of the cast of characters are a mixed bag, Mailer is rather unconvincing but the acting is generally solid.
   The Mind of Evil deserves all the recognition its gets, and awaits a fan-cult following who can appreciate its brilliance, despite its obvious flaws that Puff the Magic Dragon can’t even ruin; a true delight and an underrated classic.****

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