Margie

Margie was the principal of St. Rita's Preparatory School, who attempts to turn all the boys on the planet into girls. The young Margie of present day was given the technology and instructions to do this by her future self, Madame Margaret. When Numbuh 4 was sent to her school, he was surprised to learn that it was an all-girls school before she and her minions, the Girl Squad, revealed their intentions. Wally narrowly escaped with his gender intact, and with his hand turned into a female's.