Wendy O. Koopa

Wendy O. Koopa is a tomboyish girl and a determined member of the Koopalings, a group of seven siblings who lead the Koopa Troop.

Super Mario Bros 3
In Super Mario Bros. 3, Wendy and her siblings were sent by Bowser to the cause havoc in the Mushroom World. Wendy decided to raid Sea Side; when she got there, she attacked a Toad that was the King's attendent, stole the magic wand and transformed Sea Side's King into a Dino Rhino. Mario and Luigi arrived in Sea Side to help. After the Bros. go all through the Airship, they fight Wendy in her cabin; the Koopaling lost the fight and the Bros. returned the King to normal.