(voiced by Erika Velez in "Bad Stretch" and Yeni Álvarez in "Wet and Wild"): A Hispanic Bang Baby who was transformed into a hydrokinetic being of living water, though she lacks the ability to change back into her human form. Due to her transformation, she left behind a mother and sister to join Ebon's Meta-Breed, only to be defeated by Static and arrested by the authorities. Eventually, she is chosen by a team of scientists to become the first test subject for a "Bang Baby cure", regaining her human form in the process. Madelyn Spaulding (voiced by Kimberly Brooks): A self-centered, opinionated, controlling, and unpopular student at Dakota Union High School with no sense of self-examination. After getting caught in the Big Bang, she gained telepathy and mind control, which she uses to turn most of Dakota into "brain puppets" and discover Static's identity. She attempts to brainwash him as well, but his powers hospitalize her, negate her powers, and erase her memory of being a Bang Baby. After eventually being released from the hospital, she is barred from school, reluctantly finds work in a comic book store, and partially regains her memory of fighting Static. Upon gaining telekinesis, she takes over the Meta-Breed, but Static subdues her once more and defeats the Meta-Breed with Gear and She-Bang's help. AJ McLean (voiced by himself): A former member of the Backstreet Boys who assists Rubber-Band Man in getting a record deal. Marvin Roper / Replikon (voiced by Coolio): A musically untalented Bang-Baby shapeshifter capable of disguising himself as others and altering his molecular structure. Jealous of his former coworker, Rubber-Band Man's, talent for music and rising success, Replikon uses his powers to seek revenge by capturing and posing as AJ McLean to steal a record deal from Rubber-Band Man. However, Replikon is exposed and defeated by Static. Jimmy Osgood (voiced by Richard Steven Horvitz) - A shy, troubled student at Dakota Union High School and friend of Virgil and Richie's who is constantly bullied by Nick Connor and his friends, Kevin and Ray. Growing tired of Connor, Jimmy steals his father's gun and threatens Connor with it. Frieda and Richie calm Jimmy down, but Kevin and Ray tackle him, causing the gun to go off and shoot Richie in the leg. Aghast at the scene, Jimmy suffers a mental breakdown and is taken to receive treatment at a youth detention center.