Charles Grover

Sir Charles Grover was a strongly pro-environmentalist politician and the author of Last Chance for Man. He was made the Minister with Special Powers when dinosaurs began appearing in London. He was secretly the head of Operation Golden Age, and sabotaged the Third Doctor's and UNIT's efforts to resolve the crisis. When he was exposed, he activated Professor Whitaker's time machine, but the machine instead sent himself and Whitaker to an unknown point in the past due to the Doctor having reprogrammed the device. (DW: Invasion of the Dinosaurs)