K9 Mark I/Appearances

A list of Appearances by K-9 Mark I.

Season 15

 * The Invisible Enemy (First Appearances, Joins)
 * Image of the Fendahl (Brief Cameo)
 * The Sun Makers
 * Underworld
 * The Invasion of Time (Leaves)

Season 21

 * Resurrection of the Daleks (Flashback, Archival Material)

Doctor Who Mini-episodes

 * Search Out Space (Possible, unknown model K-9)
 * Dimensions in Time (Possible; unknown model K-9, story not regarded as canonical)

K-9
For the Appearances of the Regenerated K-9 Mark I see K9 Mark 2 - List of Appearances
 * Regeneration (Regenerates)
 * The Curse of Anubis (Drawings)

Big Finish Audio Dramas

 * Zagreus
 * Weapon of Choice
 * Square One
 * The Inquiry
 * A Blind Eye
 * Lies
 * Spirit
 * Pandora
 * Insurgency
 * Imperiatrix
 * Fractures
 * Warfare
 * Appropriation
 * Mindbomb
 * Panacea

The Companion Chronicles

 * The Time Vampire

Target Novelisations

 * All televised stories adapted

Virgin New Adventures

 * Lungbarrow (guest; with K-9 Mark II)

Doctor Who Magazine

 * Affirmative
 * Tautology (K-9 Mark I origin story; does not technically appear)

Decalog 2: Lost Property

 * Crimson Dawn

Short Trips

 * Jealous, Possessive (with K-9 Mark II)

The Adventures of K9 children's books

 * K-9 and the Time Trap
 * K-9 and the the Beasts of Vega
 * K-9 and the Zeta Rescue
 * K-9 and the Missing Planet