Doctor, back in 20th-Century London, calls at the home of his friend Professor
Travers, but finds that he has let it to a computer scientist, Professor
Watkins, and his niece Isobel. Watkins has disappeared - last heard
of at International Electromatics, the major supplier of the world's computers.
The Doctor visits the firm and distrusts the managing director, Tobias
Vaughan. So does Brigadier Lethbridge-Stewart of the newly formed
UNIT (United Nations Intelligence Taskforce). Zoe
and Isobel are captured by Vaughan, who is forcing Watkins to develop
the Ceberation Mentor, the purpose of which is to generate emotional impulses.
The Doctor discovers Vaughan is in the employ of the
Cybermen - but to late. The Cybermen manages to paralyze Earth's
population and launch an invasion through the sewers, in which their troops
had been previously hidden by Vaughan's men. With Zoe's assistance,
British missiles destroy the Cyberman invasion fleet. The Cybermen
then turn on Vaughan and announce their intention of wiping out life on
Earth with a megatron bomb. With the help of the Ceberation Mentor,
which induces madness in the Cybermen, a now reformed Vaughan helps the
Doctor and UNIT destroy the radio beacon guiding the Cybership, but is
killed in the process. The ship is finally destroyed by a Russian
The Doctor: Patrick Troughton
Jamie McCrimmon: Frazer
Zoe Heriot: Wendy
Brig. Lethbridge-Stewart: Nicholas
Lorry Driver: Murray Evans
Patrol Man: Walter Randell
Isobel Watkins: Sally
Tobias Vaughan: Kevin
Professor Watkins: Edward
Sergeant Walters: James
Captain Turner: Robert
Gorman, Ralph Carrigan, Charles Finch, Richard King, John
Spradbury, Peter Thornton
Cyber Dir. Voice: Peter
Script Editor: Terrence
Sherwin (From a story by Kit Pedler).
Make up: Sylvia James.
Visual Effects: Bill
King and 'Trading Post'
Music : Don
Baker provided the muzak playing in Vaughn's offices; other musical strings
provided by Brian Hodgson).
as "Doctor Who - The Invasion" by
Ian Marter (0 426 120169 8) first published by W.H. Allen
(now Virgin Publishing Ltd.) in 1985 with cover by Andrew Skilleter.
New edition in 1993 with cover by Alister Pearson. Target library
on Video as "The Invasion" (BBCV 4472) first released
in June 1993 with cover by Andrew Skilleter. Also released in Australia/New
Zealand (BBC catalog #4974) as a two-tape set; and in US/Canada 
(CBS/FOX catalog #8251) as a single tape. The tape includes six episodes
along with a linking narration provided by Nicholas Courtney for the two
the first UNIT story, and the last Cybermen story until "Revenge
of The Cybermen (4D)"
in 1975. Wendy Padbury was on holiday during
the filming of part four and does not appear; Frazer Hines was also on
vacation during episode eight's taping, but appears on a pre-taped segment.
one and four are missing. All six other episodes exist as 16mm telerecordings,
though episode six is slightly edited, missing only some material with
Vaughn and Watkins.
filming Studio Stage unknown.(13 September 1968)
Studio recording in Lime Grove D. (20, 27 September;
4, 11, 18, 25 October; 1, 8 September 1968)
Model filming in unknown location. (31
RAF Fairford, Fairford, Gloucestershire. (3 September
Williamstrip Farm, Coln St. Aldwyns, Gloucestershire.
(3 September 1968)
Hatherop Road, Colnb St. Aldwyn, Gloucestershire. (4
Kingston Minerals, Kempsford Road, Kempsford, Gloucestershire.
(5 September 1968)
Associated British Maltsters, Wallingford, Oxfordshire. (6
18 St. James' Gardens, Kensington, London, NW11. (11
Knightrider Street, London, EC4. (8 September 1968)
Moor Lane, London, EC2. (8 September 1968)
Distaff Lane, London, EC4. (8 September 1968)
St. Nicholas Cole Abby, Queen Victoria Street, London, EC4. (8
Queen Victoria Street, London, EC4. (8 September
Fore Street, London, EC2. (8 September 1968)
TCC Condensors, Wales Farm Road, Ealing, London, W3.
(9, 10 12 September 1968)
Princedale Road, Notting Hill, London, NW11. (11
Heathfield Street, Notting Hill, London, NW11. (11
Walmer Road, Notting Hill, London, NW11. (11 September
Millbank Tower, Millbank, London, SW1. (7 September
Guinness Brewery, Park Royal, Acton, London, NW10.
(11 September 1968)
Maida Hill Tunnel, Regent's Canal, Lisson Grove, London, NW8. (13
Cumberland Terrace, Regent's Park, London, NW1. (8
St. Paul's Churchyard, London, EC4. (8 September
Australia House, Strand, London, WC2. (8 September
Denham Aerodrome, Tilehouse Lane, Denham Green, Buckinghamshire. (date
3 - In one scene, Zoe mispronounces 'integer'
-- using a hard 'G' instead of a soft 'J'.
Episode 3 -
When Packer is sent to see Professor Watkins, he gets into the lift and
pushes the button for the 3rd floor. Later, the Doctor and Jamie escape
while being led to the professor, and flee into the lift. When the Doctor
tries to sabotage it, Jamie complains "but we're 6 floors up!",
and Packer confirms a few minutes later that they are indeed on the 6th
floor, so obviously that's where the professor is.
Episode 3 -
When Jamie and the Doctor are climbing up the lift shaft to escape from
the I.E. henchmen, look at the cables behind them. Considering they're
supposed to be holding up a lift, the cables look worryingly loose.
Episode 5 -
After Vaughan has consulted with the Cyber Controller, he sits down and
talks to Packer. Look behind Vaughan at this point and you'll notice that
the panel concealing the Cyber Controller has an awful lot of trouble
Episode 7, 8
- Why exactly do Cybermen need lace-up shoes? (You can see them in close-up
while they're marching through the streets of London.)
Episode 8 -
The Cyberman falling from the roof is plainly just an empty costume.
Episode ? -
When the Cyberman comes out of the box (when they try to use the Professor's
machine on him), part of the fabric gets stuck to him. The camera switches
to a view of his back, and you can see the fabric being pulled away.