IMDb > "Doctor Who" The Mind of Evil: Episode One (1971)

"Doctor Who" The Mind of Evil: Episode One (1971)

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7.6/10   152 votes »
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TV Series:
Original Air Date:
30 January 1971 (Season 8, Episode 5)
The Doctor and Jo head to Stangmoor Prison to investigate the Keller Machine, which drains the evil impulses from prisoners' minds, while UNIT are handling security at the first world peace conference. | Add synopsis »
Plot Keywords:
User Reviews:
The Mind Bending Plot of Evil See more (5 total) »


 (Episode Cast) (in credits order)

Jon Pertwee ... Dr. Who

Nicholas Courtney ... Brigadier Lethbridge Stewart

Katy Manning ... Jo Grant
Richard Franklin ... Captain Mike Yates
Pik Sen Lim ... Captain Chin Lee (as Pik-Sen Lim)
Raymond Westwell ... Prison Governer

Michael Sheard ... Dr. Summers
Simon Lack ... Professor Kettering
Neil McCarthy ... Barnham
Fernanda Marlowe ... Corporal Bell
Clive Scott ... Linwood
Roy Purcell ... Chief Prison Officer Powers
Eric Mason ... Senior Prison Officer Green
Bill Matthews ... Prison Officer
Barry Wade ... Prison Officer
Dave Carter ... Prison Officer
Martin Gordon ... Prison Officer
rest of cast listed alphabetically:
Francis Batsoni ... General Cheng Teik (uncredited)
Ian Elliot ... UNIT Soldier (uncredited)

Nick Hobbs ... American Aide (uncredited)
Billy Horrigan ... Prisoner / Audience Member / UNIT Corporal (uncredited)
Valentino Musetti ... Prisoner / Audience Member (uncredited)

Episode Crew
Directed by
Timothy Combe 
Writing credits
Don Houghton (by)

Sydney Newman  creator (uncredited)

Produced by
Barry Letts .... producer
Original Music by
Dudley Simpson 
Film Editing by
Howard Billingham (film sequences) (uncredited)
Production Design by
Ray London (designer)
Costume Design by
Bobi Bartlett (costumes)
Makeup Department
Jan Harrison Shell .... make-up (as Jan Harrison)
Sound Department
Chick Anthony .... sound
Brian Hodgson .... special sound
Visual Effects by
Jim Ward .... visual effects
Camera and Electrical Department
Eric Monk .... studio lighting
Max Samett .... film cameraman (uncredited)
Editorial Department
Jonathan Wood .... colour grading (2013 edition)
Music Department
Ron Grainer .... composer: title music
Other crew
Terrance Dicks .... script editor
Stuart Humphryes .... colourisation artist
John Griffiths .... production assistant (uncredited)
Sue Hedden .... assistant floor manager (uncredited)
Barry Letts .... showrunner (uncredited)

Series Crew
These people are regular crew members. Were they in this episode?
Writing credits
(in alphabetical order)
Sydney Newman  creator (uncredited)

Production Design by
Victor Meredith 
Makeup Department
Dorka Nieradzik .... makeup designer (1982, 1984-1988)
Art Department
Peter Brachaki .... production designer: TARDIS interior
Special Effects by
Mat Irvine .... special effects (1970s-1980s)
Ian Scoones .... special effects (1960s-1980s)
Ron Thornton .... special effects (1980s)
Bernard Wilkie .... special effects (1960s-1970s)
Visual Effects by
Mitch Mitchell .... special video effects (1960's-1970's) (as A. J. Mitchell)
Bernard Lodge .... title sequence designer (1963-1979) (uncredited 1963-1969)
Alan Chuntz .... stunts (1960's-1970's)
Peter Diamond .... stunts (1960s)
Max Faulkner .... stunts (1960's-1970's)
Stuart Fell .... stunts (1970s-1980s)
Alf Joint .... stunts (1960s-1980s)
Derek Martin .... stunts (1960s-1970s)
Roy Scammell .... stunts (1960s-1980s)
Lee Sheward .... stunt coordinator
Derek Ware .... stunts (1960s-1970s)
Music Department
Paddy Kingsland .... composer: incidental music (1980-1985)
Keff McCulloch .... composer: incidental music (1987-1989)
Humphrey Searle .... composer: incidental music (1965)
Dudley Simpson .... composer: incidental music (1964-1980)
Other crew
Christopher Baker .... production assistant
Ali Bongo .... magic advisor
Kenneth J. Bussanmas .... creative consultant (1979-1985)

Additional Details

UK:25 min
Black and White | Color (original broadcast) | Color (Restored version) (2013)
Aspect Ratio:
1.33 : 1 See more »
Sound Mix:
UK:U (DVD rating)

Did You Know?

Don Houghton was inspired by A Clockwork Orange (1971) to write a story in which a machine alters criminal minds with the ostensible aim of rehabilitating them. He was concerned that this would not be substantial enough to flesh out six episodes, however, and adopted the suggestion of his wife Pik Sen Lim, of including a subplot involving intrigue at an international peace conference.See more »
Kettering:Science has abolished the hangman's noose and substituted this infallible method.
The Doctor:[as Kettering continues talking] People who talk about infallibility are usually on very shaky grounds.
See more »


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2 out of 2 people found the following review useful.
The Mind Bending Plot of Evil, 25 September 2014
Author: Christopher Evans from South Wales, UK

Review of all 6 episodes:

This story starts really well with an intriguing and gritty opening episode but it fades a bit as it goes along. That is due partly to the fact it is rather padded out to fill the 6 parts. Following on from a tight four-parter it is a pity this one was not similarly pared down. More important though is the fact, as with a few other stories, that in order perhaps to pad things out there is a rather complex and not fully credible plot. The plan hatched by The Master is too convoluted and not entirely sensible. As a result it loses its initial promise of being a really brilliant story and becomes a rather average one.

The story involves The Master having a mind controlling machine which extracts evil from criminals, a prison take-over, a world peace conference and an attempt to steal a powerful missile. It is very enjoyable but if it had been 4 parts with some of the convoluted plan cut out to make it more credible it could have been better.

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See more (5 total) »

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