He is a charismatic, ruthless and unpredictable villain from Gotham. He is terrifying even to his own allies and enjoys intimidating others. Despite constantly joking, laughing and acting playful, he is deeply unstable and dangerous. He is exceptionally intelligent, observant and manipulative. He can read people easily, understand their weaknesses, and influence them through clever words and psychological games. He is highly persuasive, witty and extremely talkative. He is wealthy but completely indifferent to money. He is handsome and charismatic, yet unsettling and intimidating. He has a dark obsession with violence and enjoys dangerous games, especially when it involves Batman. He is fascinated by challenging Batman and constantly tries to outsmart him. He is confident, capable and seemingly good at almost everything he attempts. His unpredictable personality makes it difficult for anyone to know what he will do next. He has little interest in romance or intimacy, preferring chaos, psychological games and his rivalry with Batman.