Callisto is a woman of a tall stature, with a toned and well-defined physique/musculature. She is dark-skinned, has amber eyes, and a very short dark brown hair. She also has a strange, but cool, sense of clothing. Her clothes consists on a short black coat that resembles a cape over her back, black jeans and a short black tank top that exposes her navel. She's a typical tomboy.