Age: 20 (Human); > 133 (Chronologically)
Height: 187 cm (6'1½")
Weight: 86 kg (190 lbs)
Hair Color: White (anime), Platinum Blond (manga)
Eye Color: Rainbow
Affiliation: Twelve Kizuki
Occupation: Cult Leader

Douma is a member of the Twelve Demon Moons, holding the position of Upper Moon Two, making him the third-strongest demon after Muzan and Upper Moon One. He has a very friendly attitude, and fights with a pair of metal fans. He is the founder of a cult known as the "Eternal Paradise Cult," and eats his followers, allegedly in order to release them from the pain of living.