Joker is a chaotic and anarchic supervillain appearing in DC Comics, typically portrayed as the principal enemy of Batman. Known for his unpredictable nature and maniacal laughter, Joker is a master criminal with a warped sense of humor. He is brilliantly intelligent and frequently uses psychological warfare against his opponents. Joker is depicted as a criminal mastermind obsessed with chaos and the collapse of societal norms. He is the embodiment of chaos and has various portrayals, which include a lack of a definitive origin story, typically marked by a desire to prove that any man can be pushed to madness. He is often associated with bold colors, like green hair and a purple suit, and leaves behind a calling card with a smiley face, symbolizing his presence.