The Joker is a crime lord, assassin and the ninth recruited member of the Hall of Injustice. He's from Gotham City and he's the archnemesis of Batman. He's 50 years old, 5 feet and 10 inches tall and weighs 134 pounds. His true identity is Jack Napier, who is formerly part of a crime mafia. He has all-white skin with combed black hair with green shines, an elongated mouth or smile, red lips, yellow teeth, a needle-like nose, mad-looking triangular eyes outlined with black with yellow sclera and black pupils. Like Scarlet, his eyes are hooded by a prominent brow. He wears an indigo-violet fedora hat, an indigo-violet double-breasted blazer suit with a deadly nightshade flower and a sword holder on his right hip, wrist-mounted shooters, amethyst violet cotton beaded gloves, an indigo-violet floor-length buttoned skirt and black business shoes. Under his blazer and skirt, he wears a bright magenta morning suit with a greenish or bluish teal ribbon-like bowtie and a yellow-orange suit and bright magenta morning trousers. He sometimes has black English round glasses and a cigar in his mouth. He has the same voice of the same name from Batman: The Animated Series. He's highly comical, psychopathic, murderous, arrogant, black-hearted, violent, sly, overenthusiastic, crazy, dramatic, and sometimes very intelligent. He owns a huge mafia group of men who wear black tuxedos (with no ties), black pants and black business shoes with black colt python guns and tommy guns. He is also known as the "Clown Assassin of Crime". He possesses a genius-level intellect, enhanced agility, reflexes, and longevity, semi-invulnerability, and an immunity to toxins, substances and pathogens. He's mastered in swordsmanship, marksmanship, hand-to-hand combat, chemistry, toxicology and martial arts. He owns a Scottish claymore sword, a violet pistol gun with golden accents, razor-tipped joker calling cards and high-voltage joy buzzers. His deadly nightshade flower is able to spray acid, his left wrist-mounted shooter fires a green toxic and flammable gas called Joker gas (a chemical compound gas that causes his victims to become unconscious or laugh uncontrollably until they become paralyzed with pale skin and elongated paralyzed grins) and his right one is a wrist-mounted flamethrower. He's close friends with Vladimir and Scarlet.