The Joker is a fictional character and the main antagonist of Christopher Nolan's 2008 film The Dark Knight, the second film in The Dark Knight trilogy. He is based on the DC Comics character of the same name. Portrayed by Heath Ledger, he is depicted as a psychopathic anarchist mastermind who is determined to sow chaos and anarchy throughout Gotham City.
Ledger's portrayal of the Joker was influenced by the graphic novels Batman: The Killing Joke (1988) and Arkham Asylum: A Serious House on Serious Earth (1989). The character retains his traditional purple-and-green color palette, while his disfigured, clown-like appearance is achieved through smeared makeup concealing facial scars resembling a Glasgow smile, rather than the chemically bleached skin depicted in some comic book origins. Additional inspiration for the performance came from the works of painter Francis Bacon, the character Alex DeLarge from Anthony Burgess' 1962 novel A Clockwork Orange and its 1971 film adaptation of the same name, as well as elements of punk rock culture.
Although Ledger's casting was initially met with skepticism, his performance was released to universal critical acclaim from critics and audiences following the film's premiere in July 2008, six months after his death from an accidental prescription drug overdose. He posthumously received numerous accolades, including the Academy Award for Best Supporting Actor. Ledger's Joker is frequently cited as one of the greatest and most iconic villains in film history and popular culture, and is regarded as one of the most definitive screen adaptations of the character.
Concept and development Casting
On July 31, 2006, The Dark Knight was officially announced by Warner Bros. Pictures and Heath Ledger was cast as the Joker. Director Christopher Nolan had met with Ledger over the years for different roles, including the part of Batman in Batman Begins (2005). Ledger explained that he was not interested in working on superhero films: "I would just feel stupid and silly. I couldn't pull it off and there are other people who can perfectly, but I just couldn't take myself seriously". After seeing and being impressed with Batman Begins, however, Ledger sought the part of the Joker in its sequel. Nolan cast Ledger before there was a script due to his determination, stating, "Heath was just ready to do it, he was ready to do something that big." Casting director John Papsidera stated that they needed somebody courageous to play the part. Joaquin Phoenix, who later portrayed the Joker in Todd Phillips' 2019 film Joker and its 2024 sequel, Joker: Folie à Deux, was offered the role by Nolan, but he turned it down as he "wasn't ready then".
As a starting actor, Ledger did not attach himself seriously to the roles he was playing. This changed, however, when at age 22 he started to watch some of his films. Realizing that they were movies he himself might not actually have wanted to see, it made him more cautious and respectful towards his professional choices. The 2005 fantasy film The Brothers Grimm marked a turning point for the actor, as director Terry Gilliam gave Ledger—and his co-star, Matt Damon—the opportunity to explore and create characters unlike any they had previously been offered. Gilliam helped Ledger put on a clown act for that film, an experience the actor later acknowledged as an influence for his performance as the Joker.
Performance
Highlighting the opportunity for freshness, Ledger aimed for a new and different interpretation of the character, separate from previous film incarnations. Ledger and Christopher Nolan both explained seeing eye-to-eye on the Joker's appearance in the film, sharing common reference points for who the character was going to be. Based on philosophical ideas of anarchy and chaos, they drew visual inspiration from the artwork of Francis Bacon. They also discussed Malcolm McDowell's performance as Alex in Stanley Kubrick's 1971 film A Clockwork Orange, as well as the character's depiction in Anthony Burgess's 1962 original novel. Ledger was given Alan Moore's 1988 graphic novel Batman: The Killing Joke for preparation for the role, as well as Grant Morrison's 1989 graphic novel Arkham Asylum: A Serious House on Serious Earth, which he "really tried to read and put it down". The vocal style Ledger used is rumored to be influenced by Tom Waits. In an interview with MTV, Ledger said he regarded the experience playing the Joker as the most fun he ever had, "and probably will ever have".
Steve Alexander, Ledger's agent, said the actor had a "pay-or-play" deal on The Dark Knight, "so he felt free to do whatever he wanted to do as the Joker, no matter how crazy." According to The Imaginarium of Doctor Parnassus cinematographer Nicola Pecorini, Ledger had talked with him about Johnny Depp's off-kilter portrayal of Jack Sparrow in Pirates of the Caribbean: The Curse of the Black Pearl in relation to The Dark Knight, aiming to make a performance that would be "so far out he'd be fired". As Ledger was cast early in pre-production, Nolan explained that the actor had "months and months" to prepare for the role.
Execution
During a span of six weeks, Heath Ledger secluded himself in a London hotel room, compiling a character diary and experimenting with voices. "It's a combination of reading all the comic books I could that were relevant to the script and then just closing my eyes and meditating on it", he said about his process. The diary contains photos, news clippings, various handwritten thoughts and words, and portions of dialogue from the film. Christopher Hooton, writing for The Independent, said that the 'Joker journal' had several stills from Stanley Kubrick's film A Clockwork Orange, joker cards, photos of hyenas, unhinged clown makeup and the word "chaos" highlighted in green. Furthermore, it contains a list of things the Joker would find funny, such as AIDS, landmines, and geniuses suffering brain damage. It was revealed that Ledger had read Grant Morrison's The Clown at Midnight (Batman #663) and based the list upon the Batman writer's prose.
Ledger highlighted the importance of finding an iconic voice and laugh for the character, relating the voice as "the key to the demented killer". Nolan explained Ledger's early and "peculiar" ambition for the voice of the character, saying that the actor had studied the way ventriloquist dummies talk. The filmmaker also acknowledged that the voice performance was based on the Alexander technique.
Ledger developed the Joker's voice and mannerisms slowly over time and during camera tests. "Don't act, just read it", Nolan had told Ledger for a test screening. In hair and makeup tests, Ledger would start exploring the movements of the character. While test recording without sound, he shared his take on the Joker's voice and physicality, and "in that way he sort of sneaked upon it".
Ledger developed the physical appearance of the character, being "very involved" with the painting of his face, says prosthetic supervisor Conor O'Sullivan. O'Sullivan acknowledged how Ledger, Nolan, and makeup artist John Caglione all gravitated towards a Francis Bacon painting Nolan was referring to. Ledger also got to choose the Joker's weapon among different rubber knives, and he worked closely with costume designer Lindy Hemming on deciding the look for the character.
Nolan noted, "We gave a Francis Bacon spin to [his face]. This corruption, this decay in the texture of the look itself. It's grubby. You can almost imagine what he smells like." Costume designer Lindy Hemming picked inspiration for the "chaotic" look from such countercultural pop culture artists as Iggy Pop, Johnny Rotten, and Sid Vicious. She gave the image for the Joker of someone who is "very sweaty" and who "probably doesn't have a proper home". She tried to present a backstory for the character "that he really doesn't look after himself".
Application of Ledger's makeup was done with the actor scrunching special facial expressions. Caglione called the application work "a dance". This technique created facial textures for white paint. As Ledger closed his eyes tight, Caglione put on the black makeup. Then, water was sprayed over the eyes and the actor would squeeze his eyes and shake his head to create imperfections in the makeup.
To get in character for filming, Ledger kept his Joker diary with him on set and frequently referred to it. Between takes, Ledger would stay in costume and makeup just being himself. The actor would fool around, skateboarding while in his Joker costume on set, and smoking cigarettes. John Caglione described Ledger as helping others around to relax, never letting "the intense nature of the roles overwhelm him".
The first sequence shot was the film's IMAX opening, the "prologue". As the Joker wears a mask through the scene with minimal dialogue, Nolan set the prologue first in the schedule because he wanted to put off performance worries, allowing Ledger to enjoy that relief.
The interrogation scene between Batman and the Joker was the first scene shot with Ledger really showing the full performance altogether. The director and his leading actors all liked the idea of shooting the key scene early on. During rehearsals, the actors kept things loose and improvisational, saving for the actual shoot. Christian Bale, who portrayed Batman, confirmed that Ledger did not perform the Joker's voice during rehearsals, waiting to get in character when the cameras rolled. Nolan later acknowledged the scene to be his favorite in the film, saying "I had never seen anybody sell a punch the way Heath was able to do with Christian."
Ledger was allowed to shoot and direct the videos the Joker sends out as warnings. Each take Ledger made was different from the last. Nolan was impressed enough with the first video shoot that he chose not to be present when Ledger filmed the scene with a kidnapped reporter portrayed by Anthony Michael Hall.
Ledger always showed up early on set. The first thing he would do, according to Caglione, was to give bear hugs to cast and crew members around the set. "And no matter how banged-up or bruised Heath was after a long day, after we'd take off the last drop of makeup, he'd just hug everybody in the trailer before he left". At the end of shooting, on his Joker diary's final page, Ledger wrote "BYE BYE".
Effects of Heath Ledger's death On January 22, 2008, after he had completed filming The Dark Knight, Ledger died, aged 28, of an accidental prescription drug overdose, leading to intense press attention and memorial tributes. "It was tremendously emotional, right when he passed, having to go back in and look at him every day [during editing]", Nolan recalled. "But the truth is, I feel very lucky to have something productive to do, to have a performance that he was very, very proud of, and that he had entrusted to me to finish". All of Ledger's scenes appear as he completed them in the filming; in editing the film, Nolan added no digital effects to alter Ledger's actual performance posthumously. Nolan dedicated the film in part to Ledger's memory.