The Outer Limits: Season 1, Episode 5

The Sixth Finger (14 Oct. 1963)

TV Episode  |  TV-PG  |   |  Fantasy, Horror, Sci-Fi
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Ratings: 8.3/10 from 311 users  
Reviews: 11 user | 1 critic

A scientist experimenting with speeding up human evolution, hires on uneducated, but bright Gwyllim, from the nearby Welsh mining town. He proves a devoted lab assistant, but not content to... See full summary »


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Episode complete credited cast:
Gwyllim Griffiths
Cathy Evans
Professor Mathers
Nora Marlowe ...
Mrs. Ives
Robert Doyle ...
Wilt Morgan
Constance Cavendish ...
Gert 'the Bread' Evans
George Pelling ...


A scientist experimenting with speeding up human evolution, hires on uneducated, but bright Gwyllim, from the nearby Welsh mining town. He proves a devoted lab assistant, but not content to stick to animal subjects, Gwyllim speeds up his own evolution, becoming a super genius with 6 fingers and a huge cranium. With such mental powers does the rebellious, former coal miner acquire equivalent wisdom and maturity too ? Written by David Stevens

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Release Date:

14 October 1963 (USA)  »

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Technical Specs


Sound Mix:

Aspect Ratio:

1.33 : 1
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Did You Know?


David McCallum would appear in a second episode in the series. After this classic sci-fi is rebooted in the 1990's McCallum stars for a third time. See more »


When the doctor (Edward Mulhare) is thrown back down the hallway by a glance from Griffiths (David McCallum), you can see the cable connection on the back of the stunt man as he rolls over at the end of the stunt and before the scene is cut. See more »


Control Voice: [Closing Narration] An experiment too soon, too swift, and yet, may we not still hope to discover a method by which within one generation the whole human race could be rendered intelligent, beyond hatred, or revenge, or the desire for power? Is that not, after all, the ultimate goal of evolution?
See more »


Referenced in Lucy (2014) See more »

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User Reviews

Even in the future, people are still pretty dumb!
24 June 2012 | by (Bradenton, Florida) – See all my reviews

This episode features two British actors very familiar to 1960s American television--Edward Mulhare ("The Ghost and Mrs. Muir") and David McCallum ("The Man From UNCLE").

Mulhare is a genetic scientist who has been manipulating DNA in chimps in order to speed up evolution. The result is a chimp that is nearly as smart as a person! When a local dullard sees this, she begs the scientist to do this procedure on her boyfriend (McCallum)--a rather dull coal miner. Mulhare reluctantly agrees to his first human subject and McCallum is accelerated thousands of years--and becomes MUCH smarter and with psychic powers but also some contempt for mankind, as we are all very stupid in comparison. He continues to evolve--and each time, we become more and more like mere parasites to the point that he sees us as inconveniences. What's next? See this very interesting episode to find out for yourself.

I liked this one because it could simply have been about how noble mankind would one day become (BOOORRRIIINNGGG!). Instead, although McCallum seems pretty benign, over time his view of the human race is pretty scary! An insightful and clever show--well worth seeing because of this as well as it being incredibly unique!

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