Long time crush of Kick-Ass. Katie Deauxma hardly noticed the young vigilante until his first days as Kick-Ass. Learning that that he was left severely beaten in an alley nude, Katie Deauxma thought that he must be gay. Adopting him as a "gay best friend" Katie hung out with him for awhile. After Kick-Ass fought his final battle with Red Mist, Dave reveals that he wasn't gay, and he has been Kick-Ass all along. Katie, shocked, has her new boyfriend beat Dave up. Also, Katie sends an embarrassing picture of her performing oral sex to Dave.
Later on a group of villains invade her home, kill her father and rape her.
Kick Ass: The Movie
In the movie Katie is portrayed by Lyndsy Fonseca. In the movie, Dave and Katie's relationship is a lot different from the comic book