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)
 * Underworld
 * The Sun Makers
 * 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)
 * Dimension in Time (possible; unknown model K-9; story not regarded as canonical)

Virgin New Adventures

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

Virgin Missing Adventures

 * The Shadow of Weng-Chiang

BBC Past Doctor Adventures

 * Tomb of Valdemar
 * Heart of TARDIS (cameo)

Doctor Who Magazine

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

Short Trips

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