From the official wiki itself
In the extended lore it is revealed that Mrs Kwan is not in fact Taiwanese but is instead a Russian spy looking to annihilate Whoville. This is explained in the limited run Dr. Seuss comic book series published by MARVEL. Later it was learned that she had ascended to the class of of celestial being shortly after she had killed Hitler and later Stalin. As of issue #6 she had been hired as a hitman to kill fascists and dictators around the Andromeda galaxy. Her heroism was final recognized in issue #19 after she had saved Larry Quinn from Thing Three in the Dark Sludge saga. In issue #27 after the Anti-Reflupper took over her brain, Mrs. Kwan gained the powers of teleportation. However, it corrupted her mind leading her to destroy Whoville for Russia, and hope was nearly lost until Karlos K. Krinklebine used the power of the Animatrotron to save Whoville. In issue #53 she murdered a young woman in her home named Caitlin Nicholson and used her corpse as a puppet, and was last seen boarding American airlines flight 93 before the plane tragically struck the north-west tower of The World Trade centre on September 11th 2001. Her fate is currently unknown.
