K9 or K-9 may refer to:
K-9 is the name of several fictional robotic canines (dogs, the name being a pun on the pronunciation of "canine") in the long-running British science fiction television series, Doctor Who, first appearing in 1977. K-9 has also been a central character in three of the series television spin-offs: the one-off K-9 and Company (1981), The Sarah Jane Adventures (2007–2011) and K-9 (2009–2010). Although not originally intended to be a recurring character in the series, K-9 was kept in the show following his first appearance because he was expected to be popular with younger audiences. There have been at least four separate K-9 units in the series, with the first two being companions of the Fourth Doctor. Voice actor John Leeson has provided the character's voice in most of his appearances, except during Season 17 of Doctor Who, in which David Brierley temporarily did so. The character was created by Bob Baker and Dave Martin, to whom rights to the character still belong; consequently, Baker's spin-off series K-9, which is not BBC-produced, cannot directly reference events or characters from Doctor Who, though it attempts to be a part of that continuity.
K-9 is a British-Australian comedy-adventure series focusing on the adventures of the robot dog K-9 from the television show Doctor Who, achieved by mixing computer animation and live action. It is aimed at an audience of 11- to 15-year-olds. A single series of the programme was made in Brisbane, Australia, with co-production funding from Australia and the United Kingdom. It aired in 2009 and 2010 on Network Ten in Australia, and on Disney XD in the UK, as well as being broadcast on other Disney XD channels in Europe.
K-9's co-creator, Bob Baker, had long sought to produce a television series starring the character. Indeed, in 1997 Doctor Who Magazine announced that Baker and producer Paul Tams were producing a four-part pilot series provisionally called The Adventures of K9. The magazine stated that the pilot would be filmed that year "on a 'seven-figure' budget", and that the BBC had expressed interest in purchasing the broadcast rights. However, funding proved elusive, and despite persistent rumours, the series remained in "development hell" for many years.
Under a fence I crawl, Dig up all your vegetables
Creep into your house at night
Wipe my feet on the rug that you like
I'm canine - and I am, I'm feeling fine
I'm animal - and it's payback time
I'm your alarm clock, and when it's still dark
I get you up, And the noises in the night
You hear that's me drinking all your beer
I'm canine - and I am, I'm feeling fine
I'm animal - and it's payback time
You know the reason your friends don't come round anymore
That's because I don't let them near the door
And you wonder why your boyfriend never comes
That's because I ate one of his thumbs
I'm canine - and I am, I'm feeling fine
I'm animal - and it's payback time
You know those phone calls
With the panting and the very low growls, That's for all the times that you
You locked me out of the house
I'm canine - and I am, I'm feeling fine
I'm animal - and it's payback time
You know that reocurring gift on the doorstep,
I hope that you really like it, It, took me such a long time to create it.
That's my excrement.
I'm canine - and I am, I'm feeling fine