This British/Australian co-production comedy/adventure series spins off the character of the robotic dog K9 from the British television series Doctor Who. Because the programme is not a BBC production, it cannot make direct references to Doctor Who. Similarly, K9 was radically redesigned for this show, because although Bob Baker (creator of K9 and co-creator of the original character) owns the character rights to K9, the BBC owns the rights to the original character design.
The concept for K9 was developed by Australian writers Shane Krause and Shayne Armstrong, who also serve as primary writers for the programme. Other Australian writers involved in the show include Queensland-based writer Jim Noble and comedian Ian McFadyen.
The programme is filmed and produced in Brisbane, Australia, but set in near-future London.