K9 Mark I/Appearances

K9 Mark I. (TV: The Invisible Enemy)

The following is a list of appearances by K9 Mark I.

Title	Medium	Series	Author	Release date
The Invisible Enemy	TV	Doctor Who season 15	Bob Baker, Dave Martin	1 - 22 October 1977
Image of the Fendahl			Chris Boucher	29 October - 19 November 1977
The Sun Makers			Robert Holmes	26 November - 17 December 1977
Underworld			Bob Baker, Dave Martin	7 - 28 January 1978
The Invasion of Time			David Agnew	4 February - 11 March 1978
Regeneration		K9	Shayne Armstrong, S.P. Krause	31 October 2009
Curse of Anubis			Jim Noble	15 March 2010
Mind Snap			Bob Baker, Paul Tams	7 June 2010
Lost in Time	Video game	Doctor Who	N/A	27 June 2022
The Exxilons	Audio	The Fourth Doctor Adventures series 4	Nicholas Briggs	15 January 2015
Requiem for the Rocket Men			John Dorney	13 March 2015
Death Match			Matt Fitton	16 April 2015
The Fate of Krelos / Return to Telos			Nicholas Briggs	8 July - 11 August 2015
The Mind Runners / The Demon Rises		The Fourth Doctor Adventures series 7	John Dorney	18 January 2018
Shadow of the Sun		The Fourth Doctor Adventures series 9	Robert Valentine	12 May 2020
Weapon of Choice		Gallifrey series 1	Alan Barnes	March 2004
Square One			Stephen Cole	April 2004
The Inquiry			Justin Richards
A Blind Eye			Alan Barnes	May 2004
Lies		Gallifrey series 2	Gary Russell	April 2005
Pandora			Justin Richards	June 2005
Insurgency			Steve Lyons	July 2005
Imperiatrix			Stewart Sheargold	August 2005
The Time Vampire		The Companion Chronicles series 4	Nigel Fairs	31 May 2010
The Dalek Protocol		Dalek Universe	Nicholas Briggs	13 April 2021
Doctor Who and the Invisible Enemy	Novel	Target novelisation	Terrance Dicks	29 March 1979
Doctor Who and the Image of the Fendahl				26 July 1979
Doctor Who and the Underworld				24 January 1980
Doctor Who and the Invasion of Time				21 February 1980
Doctor Who and the Sunmakers				18 November 1982
Lungbarrow		Virgin New Adventures	Marc Platt	20 March 1997
The Gallifrey Chronicles		BBC Eighth Doctor Adventures	Lance Parkin	2 June 2005
K9 and the Time Trap		The Adventures of K9	Dave Martin	20 October 1980
K9 and the Beasts of Vega
K9 and the Zeta Rescue
K9 and the Missing Planet
The Roots of Evil	Short story	Puffin eshort	Philip Reeve	23 April 2013
Affirmative		Brief Encounter	Daniel Read	5 September 1991
Crimson Dawn		Decalog 2: Lost Property	Tim Robins	20 July 1995
Jealous, Possessive		Short Trips: Zodiac	Paul Magrs	6 March 2002
One Man and His Dog		The Essential Book of K9	Bob Baker	July 2015
A Rare Gem	Comic	Prisoners of Time	Scott & David Tipton	17 April 2013
The Choice				13 November 2013
Endgame				20 November 2013
Short Circuit		The Essential Book of K9	Paul M. Tams	July 2015
Firelight		Once Upon a Time Lord	Dan Slott	7 November 2023