He is the eldest son of the Pro Hero Endeavor, driven insane due to his neglectful and selfish actions, and becoming a villain to enact revenge. Dabi is a reasonably tall, pale young man of slim shape but somewhat muscular build, described as in his early twenties. He has white hair with a few red flecks at its crown that spikes upward around his head, hanging low over his eyes, which are thin, turquoise, and heavily lidded. Dabi's hair was dyed black before revealing his true identity.