The One Doctor (audio story)

 was the twenty-seventh monthly Doctor Who audio story produced by Big Finish Productions. It featured Colin Baker as the Sixth Doctor and Bonnie Langford as Melanie Bush. This audio was released in December 2001 and was considered Big Finish's "Christmas release". It has a notably comic slant to the story. It is the first of two Christmas releases in the main range, the second being AUDIO: Bang-Bang-a-Boom!. Both stories feature Mel.

Publisher's summary
When the evil Skelloids launch an attack upon the seventeen worlds of the Generios system, its peace-loving inhabitants face total destruction.

So it's lucky that the Doctor, that famous traveller in time and space, is in the area, and that he, along with his pretty young assistant, Sally-Anne, manages to defeat the deadly creatures and save the day.

But now it looks as though the Doctor's luck has run out.

Who is the mysterious, curly-haired stranger, intent on causing trouble? What role does the feisty redhead Melanie play in his scheme? And what have they to do with the sinister alien cylinder approaching Generios?

One thing is certain: for the Doctor and Sally-Anne, there's deadly danger ahead...

Plot
to be added

Cast

 * The Doctor - Colin Baker
 * Melanie Bush - Bonnie Langford
 * Citizen Sokkery - Nicholas Pegg
 * Councillor Potikol - Stephen Fewell
 * Banto Zame - Christopher Biggins
 * Sally-Anne Stubbins - Clare Buckfield
 * Guard - Mark Wright
 * Questioner - Jane Goddard
 * The Cylinder - Matt Lucas
 * Mentos - Nicholas Pegg
 * Assembler 1 - Adam Buxton
 * Assembler 2 - Stephen Fewell
 * Jelloid - Matt Lucas

The Doctor

 * The Doctor claims that he has become aware of occasions when he is in the presence of another incarnation of himself, claiming that his hair stands on end.
 * The Cylinder calls the Doctor Johann Schimdt, Doktor von Wer, Ka Faraq Gatri, Theta Sigma and Snail.

Individuals

 * The Questioner poses a question to Mentos about the Masterbakers of Barastabon.

Locations

 * In June 1975, the Doctor based himself in 35 Jefferson Road, Woking during an invasion by Cybermen. (This may have taken place during a specific late 20th century invasion of theirs. TV: The Invasion) The back ]bedroom had purple wall paper.
 * Mel as a girl lived in a large house in Pease Pottage, about seven miles from town.

Species

 * The Spraxis Jelloids are large, single-celled organisms who can live in excess of fifty million years.
 * The Sinister Sponges worship the Loofah of Life.
 * A Spaag from Vishtek 3 ate Sally-Anne's Aunty Sue.
 * The Quarks are mentioned by Banto.

Planets

 * Banto Zane is from the planet Osphogus, which was terraformed five thousand years before the time of the story.
 * The Jelloid is expecting a home entertainment system from the planet Bendalos. The depot for said entertainment system is on Sirrinus Traxia.
 * Abydos is located in the Rim Worlds; nothing much is out there.

Objects

 * The Stardis, Banto and Sally-Anne's mock TARDIS, is shaped like a portaloo.
 * Banto uses a psychic screwdriver, equivalent to the Doctor's sonic screwdriver, to seemingly defeat the Skelloids.
 * The Cylinder projects its transmission over Generios 1 with a Multi-Phase Corpolectic Sound Wave.
 * At the start of this adventure the Doctor is indulging in his megalomaniacal side by playing Monopoly.

Three Great Treasures of Generios

 * UNIT ZX419, also known as the Shelves of Infinity, are infinite and therefore impossible to put up.
 * Mentos; or rather the control box to Mentos.
 * The largest diamond in existence.

Continuity

 * Mentos asks the Doctor if he's going to use one of those "fox the computer conundrums...the last thing I said was false and all that". This alludes to a popular means of defeating misguided or evil computers in Star Trek but also references TV: The Green Death. The Eighth Doctor would experience a similar failure in using such questions on the Brain in PROSE: The Space Age, but simply muses that at least it shows people are building the computers properly.
 * The names that the Cylinder calls the Doctor hail from specific stories: Johann Schmidt (AUDIO: Colditz, Klein's Story, Storm Warning; PROSE: Timewyrm: Exodus, The Shadow in the Glass), Doktor von Wer (TV: The Highlanders), Ka Faraq Gatri (PROSE: Remembrance of the Daleks, PROSE: Timewyrm: Revelation) Theta Sigma (TV: The Armageddon Factor, TV: The Happiness Patrol) and Snail (PROSE: Lungbarrow).
 * The Doctor claims that he has very good eyesight in the dark due to drinking so much carrot juice. (Mel would have forced him to drin it.) (TV: Terror of the Vervoids, The Ultimate Foe)
 * Mel mentions the fact that she has "the memory of an elephant" is a running gag between herself and the Doctor. (TV: Terror of the Vervoids, Time and the Rani)
 * The Sixth Doctor's comment that his hair stands on end in the presence of another self is later mentioned in AUDIO: The Light at the End, when he arrives in a pocket dimension at the same time as the Seventh Doctor.