September 2, 1978: K9 Mark II joins the Doctor

K9_in_the_TARDIS
K9

K9 was the designation given to a series of intelligent, dog-like robots who served as companions of Professor Marius, the Fourth Doctor, Leela, Romana, and Sarah Jane Smith.

K9 Mark I first appeared in the 1977 adventure The Invisible Enemy but left with Leela at the end of Season 15.  K9 Mark II made a brief appearance (boxed) at the end of The Invasion of Time but first appeared in the Season 16 opener The Ribos Operation.

He then left with Romana II at the end of Season 18 in Warrior’s Gate.

K9 Mark II

The Doctor obtained or constructed at least one backup model of K9. Immediately after leaving Mark I behind with Leela, he unpacked K9 Mark II. This version of K9 accompanied the Doctor and his new companion on their quest to locate the segments of the Key to Time.

This K9 exhibited the ability to sense and warn others of danger. He was also more mobile than his predecessor.

K9 travelled to E-Space with the Fourth Doctor and Romana II, where they met Adric. Damaged by the time winds, K9 Mark II could not cross back into N-Space with the Doctor. He decided to stay behind at the Gateway with Romana II to help her free the remaining Tharils from slavery.

Appearances

  • The Ribos Operation
  • The Pirate Planet
  • The Stones of Blood
  • The Androids of Tara
  • The Armageddon Factor
  • Destiny of the Daleks
  • The Creature from the Pit
  • Nightmare of Eden
  • The Horns of Nimon
  • The Leisure Hive
  • Meglos
  • Full Circle
  • State of Decay
  • Warriors’ Gate

Find out more*

Source of information, pictures etc is the TARDIS Data Core* unless stated otherwise.

*Prof Nostalgia & the20thcentury.today are not responsible for external links.

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