Cynthia Aurora "Cindy" Vortex is a blonde-haired girl with green eyes, wears a fading-green shirt with stripes and wears her hair in a ponytail with her trademark bangs. In her debut, she wore a salmon-pink shirt with black pants and salmon-pink shoes and wore her hair in pigtails. She is very good at tai-chi. Her close friend is Libby. She has a dog named Humphrey, who is seen in many episodes, usually accompanying her.