The Infinite Quest is the stunning animated Doctor Who adventure series created for the BBC childrens show Totally Doctor Who. It aired in 13 episodes during the Spring 2007 and featured David Tennant and Freema Agyeman. Anthony Head guest starred as a new character Balthazar Scourge of the Galaxy.

Featuring spectacular cutting-edge animation technology, The Infinite Quest was written by Alan Barnes and directed by Gary Russell, and is set during the action of the third series of Doctor Who.

The Doctor And Martha follow a trail of clues across wild and wonderful alien worlds, to find the location of the legendary lost spaceship, the Infinite.

Hosted by Barney Harwood and Blue Peter's Liz Barker, the Totally Doctor Who BBC 1 children's programme gives younger viewers an idea of what's going on in the main series.