Meliodas「メリオダス」 is the Dragon’s Sin of Wrath and captain of the Seven Deadly Sins, formerly the owner of the renowned tavern Boar Hat, and is the main protagonist of the series. His Sacred Treasure is the Demon Sword Lostvayne and his inherent power is Full Counter. He was also the head of the Ten Commandments, as Meliodas the Love「慈愛のメリオダス Jiai no Meriodasu」and a former member of Stigma. He is the older brother of Zeldris and the eldest son of the Demon King.

Despite having the appearance of a child, Meliodas is much older, being more than three thousand years old. He is exceptionally short compared to other characters, with messy blond hair and a pair of emerald eyes. He also lacks facial hair, further accentuating his adolescent appearance. Regardless of his stature and youthful looks, he is relatively muscular, possessing an array of well-developed abdominal muscles. He often wears an ordinary, clean white button-front shirt and a black sleeveless vest on top with a loosely worn tie. His Broken Sword‘s scabbard is held on by a green leather belt with gold-colored buckles. Without any socks, he wears a pair of black boots. His most distinctive trait is his Dragon symbol carved at the top of his left bicep, just below his shoulder.