Joaquin Phoenix

Arthur Fleck, a failed comedian and party clown, descends into madness and becomes the infamous criminal mastermind known as the Joker. The film explores themes of mental illness, societal neglect, and the consequences of isolation. Growing up in Gotham's underbelly, he often performed at children's parties and was betrayed by his closest ally, leading to a deep-seated resentment. With no clear political affiliation, he is manic, impulsive, and cunning. He enjoyed dark humor and despised authority figures, with a small habit of always wearing mismatched socks.