Space: 1999: Season 1, Episode 18

The Infernal Machine (8 Jan. 1976)

TV Episode  -   -  Adventure | Drama | Sci-Fi
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Ratings: 7.2/10 from 51 users  
Reviews: 1 user

The Alphans encounter Delmer Plebus Powells Gwent, a huge spacecraft that defies aerodynamics and is an extension of Gwent's genius and ego.



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Title: The Infernal Machine (08 Jan 1976)

The Infernal Machine (08 Jan 1976) on IMDb 7.2/10

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Episode complete credited cast:
Barry Morse ...
Companion Gwent
Clifton Jones ...
Zienia Merton ...
Gary Waldhorn ...


The Alphans encounter Delmer Plebus Powells Gwent, a huge spacecraft that defies aerodynamics and is an extension of Gwent's genius and ego.

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Release Date:

8 January 1976 (UK)  »

Company Credits

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Technical Specs


Sound Mix:


Aspect Ratio:

1.33 : 1
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Did You Know?


Paul Morrow was in the original script for this story but Prentis Hancock had to go into hospital for an operation so his lines were given to a new character Winters. See more »

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User Reviews

Pretty good--and you get a healthy dose of Leo McKern!
8 May 2010 | by (Bradenton, Florida) – See all my reviews

The episode begins with Leo McKern's lovely voice announcing itself to Moonbase. However, Koenig and the rest assume this is the voice of the commander of a spaceship--little do they realize the voice IS the spaceship! When they enter the craft after being invited, they meet a man who is 'Companion'--not the commander but a humanoid who keeps the machine company. But, when this geriatric companion dies from old age, the machine begins behaving very nastily! Without its companion and conscience, the machine with feelings soon runs amok--behaving like a major jerk and bully. Can the humans hope to possibly defeat this hulking and very nasty spacecraft or escape its clutches? Tune in and see what happens next.

In addition to being the voice of the machine called 'Gwent', McKern also plays the short-lived part of the Companion. It's nice to see such a good actor in a sci-fi role. Some might love his bombastic and over the top performance as Gwent--some might be turned off, as he over-emotes considerably. I actually liked it and found the episode to be good because it is so different. A great episode, no...but a pretty good one.

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