The Invisible Enemy: Part One 

"Contact has been made!" A relief crew en route to Titan in 5000 AD unwarily pick up hitchhikers that change them. Shortly thereafter the Doctor, passing through the same point in space, is... See full summary »

Director:

Derrick Goodwin

Writers:

Bob Baker (by), Dave Martin (by)

Stars:

Tom Baker, Louise Jameson, Michael Sheard

Cast

Episode complete credited cast:
Tom Baker	...	Doctor Who
Louise Jameson	...	Leela
Michael Sheard	...	Lowe
Brian Grellis	...	Safran
Edmund Pegge	...	Meeker
Jay Neill	...	Silvey
Anthony Rowlands	...	Crewman
John Leeson	...	Nucleus (voice)

Storyline

"Contact has been made!" A relief crew en route to Titan in 5000 AD unwarily pick up hitchhikers that change them. Shortly thereafter the Doctor, passing through the same point in space, is hitchhiked as well, but not Leela - a reject who must die.

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Plot Keywords:

relief | reject | year 5000 | doctor who | fourth doctor | 

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Genres:

Adventure | Drama | Family | Sci-Fi

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Details

Country:

UK

Language:

English

Release Date:

1 October 1977 (UK)

Company Credits

Technical Specs

Runtime:

23 min

Sound Mix:

Mono

Color:

Color

Aspect Ratio:

1.33 : 1

Did You Know?

Trivia

The debut of K9.

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Quotes

Leela: We've never been in here before.
Doctor Who: [correcting] *You've* never been in here before.
Leela: What is it?
Doctor Who: Number two control room, been closed for redecoration. I don't like the colour.
Leela: White isn't a colour.
Doctor Who: That's the trouble with computers, always think in black and white. No aquamarines, no blues
[the Doctor leans in close to the console]
Doctor Who: no imagination!
[the TARDIS's time rotor switches off]

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Connections

Referenced in Doctor Who: School Reunion (2006)

User Reviews

Pretty good.

Ignoring the cheap sets, this is one of the better episodes of Doctor Who. Its clever and original. The story is weird but fun. The actors are all great. I'd recommend this episode - especially if you're a fan of the show.