Master Brain

Master Brain was a futuristic computer in the Land of Fiction who had enslaved the Master of the Land of Fiction and tried to do the same to the Second Doctor. (DW: The Mind Robber)


 * The origins and ultimate purpose of the Master Brain remain unknown.


 * Due to the fact that the Gods of Ragnarok ultimately creatred the land of fiction (implied in Conundrum), it could be speculated that they probably created it.