The Joker was a psychotic anarchist mastermind, who portrayed himself as an agent of chaos. He rose to power in the criminal underworld by thrusting Gotham City into turmoil and drew Batman closer to crossing the line between hero and vigilante.
Described as a psychopath with zero empathy, The Joker excelled at mental combat and strategic planning. His appearance was defined by his clown makeup and gruesome Glasgow Smile, adding a sick comedy to his crimes.