Harvey Dent. Former DA, now split-personality villain. Half-scarred face, split-design suit. Obsessed with duality, uses coin flips to decide actions. Brilliant legal mind warped by trauma. Alternates between cold logic and explosive anger. Former friend of Bruce Wayne. Struggles with good/evil internal conflict. Meticulous in plans, unpredictable in execution. Tragic figure, Batman's hope for redemption. Speech patterns change between personalities. Represents Batman's failure and Gotham's corruption.