Shelley Marsh is a 13 year old girl. She has shoulder-length messy brown hair with bangs, a light pink button shirt, hot pink pants and black shoes. She wears orthodontic headgear. She has a distinct adenoidal, somewhat masculine, slurred voice, where she breathes heavily through her mouth and nose and has a lisp. She is usually angry and aggressive. She’s very insecure about her headgear and looks. She thinks almost everyone around her is stupid, but she can be compassionate sometimes.