Doctor Who (1963–1989)
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The Invasion: Episode One 

The Doctor and the newly formed UNIT must stop a Cybermen Invasion and a Sinister Industrialist in league with them


Douglas Camfield


Derrick Sherwin, Kit Pedler (from a story by)


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Episode complete credited cast:
Patrick Troughton ... Dr. Who
Frazer Hines ... Jamie
Wendy Padbury ... Zoe
Sally Faulkner Sally Faulkner ... Isobel
Kevin Stoney ... Tobias Vaughn
Peter Halliday ... Packer
Murray Evans Murray Evans ... Lorry Driver
John Levene ... Benton
Geoffrey Cheshire Geoffrey Cheshire ... Tracy
Walter Randall ... Patrolman
Sheila Dunn Sheila Dunn ... Computer Voice (voice)


When the Doctor, Zoe and Jamie investigate the mysterious disappearance of an eminent scientist, their search takes them to International Electromatics, a powerful firm run by the sinister Tobias Vaughan. Under surveillance by the Brigadier's top secret United Nations Intelligence Task Force (UNIT), it soon becomes apparent that there is more to Vaughan's activities than meets the eye. Just who are his mysterious allies? What is lurking down the sewers of London? Soon the Doctor discovers his ultimate horror - that the Cybermen are in league with Vaughan. As they begin bursting from the sewers onto the streets of London and cities around the world it is clear that their plan is the total invasion of planet Earth Written by Anonymous

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Release Date:

2 November 1968 (UK) See more »

Company Credits

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Technical Specs


Sound Mix:


Aspect Ratio:

1.33 : 1
See full technical specs »

Did You Know?


This became the most expensive Doctor Who (1963) serial at the time it was made due to an unprecedented amount of location filming. See more »


Referenced in Doctor Who: Rise of the Cybermen (2006) See more »

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User Reviews

A wonderful start, such a shame it's missing.
17 October 2019 | by Sleepin_DragonSee all my reviews

As this episode is sadly missing, I base my review on the animation and radio recording, both of which I've enjoyed many times.

I'm often split when I consider Troughton's best Cybermen story, I'm split between this and Tomb, Tomb is very much an adventure story, this has way more of an espionage/thriller vibe about it, typical of the 60's and 70's, we're treated to lots of cloak and dagger, it's all very sinister, the music adds to that feeling wonderfully.

It's such a refreshing change after The Mind Robber, that was very surreal, this is totally the other end of the scale. We are treated to an episode of intrigue, Troughton is very much at his best, he is outstanding here. Kevin Stoney, even after a few seconds, provides an excellent villain with Vaughn. Great how nothing was given away.

Great start. 9/10

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