•Real Name: Percival Edmund Chang

•Height: 5'3"

•Weight: 250 lbs.

•Age: Teens

•Family: Absolom (brother), Stewart Philip Chang (father)

•Place of Birth: Hong Kong

•Profile: Team 7's Chang, fearing IO's sinister plans, sent his son into hiding while he was still an infant. Raised in Seattle, Percival Edmund soon became known as "Grunge," an all-American slacker who knew little about his father. Invited to take part in IO's Project Genesis program, Grunge soon found out he was in a prison-like breeding ground for Gen-Actives. Manifesting his powers, he escaped with his new teammates, the Gen13. Grunge is a skate/surf rat and enjoys spending his afternoons sleeping in. Although he lives in a beach house with three beautiful superwomen, only Freefall appreciates him for who he really is, a slovenly, cold-pizza eating party animal with a photographic memory.

•Powers/Abilities: A Gen-Active, Grunge has the power to mimic the molecular structure of any material he touches. This means all or any part of his body can transform into stone, metal, or even gelatin. He has also demonstrated a limited ability to transform other people as well. He is naturally fit and has brown belts in Aikido, Kempo Karate, Jujitsu, Tae Kwon Do, and Kung Fu.