Who portrayed the Joker in Nolan's The Dark Knight?

Heath Ledger portrayed the Joker in Christopher Nolan's The Dark Knight. Ledger's performance became one of the most celebrated comic-book film portrayals, presenting the villain as an unpredictable criminal strategist devoted to chaos rather than wealth or conventional power.

The Dark Knight, released in 2008, was the second film in Nolan's Batman trilogy. Ledger was cast before the screenplay was finished, and he reportedly spent months developing the character's voice, mannerisms, and physical presence. The film deliberately gives the Joker no definitive origin story, preserving the character's mystery.

Ledger's Joker challenges Batman's belief that Gotham's criminals can be understood through ordinary motives. His plots target the city's moral order, especially through his manipulation of Harvey Dent. The performance earned Ledger a posthumous Academy Award for Best Supporting Actor.

The wrong options refer to other Joker portrayals or unrelated roles: Jack Nicholson played the character in Batman, Jared Leto played him in Suicide Squad, and Joaquin Phoenix played a different interpretation in Joker. None portrayed Nolan's Joker in The Dark Knight.