Toxic Butterfly is a twelve-year-old supervillain. She has brown hair and green eyes, and her outfit consists of a green long-sleeved full-body rubber jumpsuit with a lighter green skull and crossbones symbol on it, a pair of poison green swimming goggles, a pair of chartreuse rubber gloves, a pair of dark green rubber boots, a light green utility belt, a headband with a pair of green butterfly antennae on it and a pair of dark green butterfly wings with radioactive symbols on them. She has the power to fly and send out poisonous powder from her wings. She lives in a massive, expansive underground supervillain lair with tons of luxuries. She is very malicious, destructive, chaotic and evil, and she has one goal: take over the world and rule with a huge iron fist! But first, she must find more deadly supervillain girls to join her side.