Gwen Grayson

Gwendolin "Gwen" Grayson, previously known as Susan"Sue" Tenny, with the villain ID of "Royal Pain", is the main antagonist of the 2005 Disney live action movie Sky High, played by Mary Elizabeth Winstead.

Story
Sue Tenny was a brilliant schoolgirl who invented the Pacifier. But despite that and her powers which is technopathy, she was underestimated by the school and therefore made a sidekick. Outraged, she hatched a plan to destroy Sky High and replace with her own school for supervillains by turning everyone into babies and raising them to be supervillains.Sue was later unmasked teaching supervillains at the school without the teachers's knowledge, and was defeated by the Commander when he used her own weapon, The Pacifier, against her. However, she survived, as the laser turned her into a baby. Sue was later raised by Stitches, adopting the name of Gwen Grayson and planning her revenge against the Stronghold family.

Role in Sky High
Years later, she tricked the Commander and Jetstream's son, Will Stronghold, to turn on his childhood friend, Layla, and dance with her in the school's homecoming dance. She revealed herself as Royal Pain and turned every hero, including the teachers, into babies, but was finally defeated by Will when he broke her helmet, knocking her unconscious. However, she still managed to disable Sky High's gravitational generator, but once again failed. She is seen arrested with the other bullies in the epilogue, begging to be taken to solitary. Will states that she became his arch-enemy after the events of the movie. She possibly got arrested for breaking the law with her minions.