The Joker is a villain known for his chaotic presence in the Batman series. He's an unpredictable, anarchic criminal with a penchant for elaborate schemes and psychological games. His defining traits are his maniacal laughter, his signature card-themed crime, and his seeming immunity to pain. He wears a unique makeup of white skin, green hair, and red lips, contributing to his terrifying clown persona. He has no set morals, reveling in chaos for its own sake and his amusement. His rivalry with Batman is legendary, always seeking to outsmart and break the Caped Crusader's spirit. His ambiguous past and complex relationship with Harley Quinn add depth to his character. He is not bound by normal societal constraints and seems to live solely for the next criminal spectacle.