Katie McVoy was a member of the Post-Flares Coalition and later WICKED and a friend of Chancellor John Michael, but is primarily the main instigator of VC321xb47 virus, also known as the Flare, that she initially describes as "perfect for their needs", that is to say limit the number of human beings on Earth to preserve resources after the Sun Flares. She only appears during an exchange of emails with John Michael, of whom would later be elected as the Founding Chancellor of WICKED. After the virus mutated and the PFC reformed into WICKED, she committed suicide as a result of both extreme guilt and infection by the disease whose release was recommended by her. However, she is seen in The Fever Code, confusing some readers.
Katie was the one who introduced Thomas to Teresa and who told them first they would be able to communicate inside each other's heads and help to build the Maze.
