Robinson stated that it was his 1940 card sketch that served as the character's concept, and Finger associated that image with Veidt in the film. Kane hired the 17-year-old Robinson as an assistant in 1939, after he saw Robinson in a white jacket decorated with his own illustrations. Beginning as a letterer and background inker, Robinson quickly became primary artist for the newly created Batman comic book series. In a 1975 interview in The Amazing World of DC Comics, Robinson said he wanted a supreme arch-villain who could test Batman, not a typical crime lord or gangster designed to be easily disposed of. He wanted an exotic, enduring character as an ongoing source of conflict for Batman, designing a diabolically sinister, but clownish, villain. Robinson was intrigued by villains; he believed that some characters are made up of contradictions, leading to the Joker's sense of humor. He said that the name came first, followed by an image of a playing card from a deck he often had at hand: "I wanted somebody visually exciting. I wanted somebody that would make an indelible impression, would be bizarre, would be memorable like the Hunchback of Notre Dame or any other villains that had unique physical characters." He told Finger about his concept by telephone, later providing sketches of the character and images of what would become his Joker playing-card design. Finger thought the concept was incomplete, providing the image of Veidt with a ghastly, permanent rictus grin.
Kane countered that Robinson's sketch was produced only after Finger had already shown the Gwynplaine image to Kane, and that it was only used as a card design belonging to the Joker in his early appearances. Finger said that he was also inspired by the Steeplechase Face, an image in Steeplechase Park at Coney Island that resembled a Joker's head, which he sketched and later shared with future editorial director Carmine Infantino. In a 1994 interview with journalist Frank Lovece, Kane stated his position:
Robinson credited himself, Finger, and Kane for the Joker's creation. He said he created the character as Batman's larger-than-life nemesis when extra stories were quickly needed for Batman #1, and he received credit for the story in a college course:
Although Kane adamantly refused to share credit for many of his characters, and refuted Robinson's claim for the rest of his life, many comic historians credit Robinson with the Joker's creation and Finger with the character's development. By 2011, Finger, Kane, and Robinson had died, leaving the story unresolved.
The character's regular appearances quickly defined him as the archenemy of Batman and Robin; he killed dozens of people, and even derailed a train. By issue #13, Kane's work on the syndicated Batman newspaper strip left him little time for the comic book; artist Dick Sprang assumed his duties, and editor Jack Schiff collaborated with Finger on stories. Around the same time, DC Comics found it easier to market its stories to children without the more mature pulp elements that had originated many superhero comics. During this period, the first changes in the Joker began to appear, portraying him as a wacky but harmless prankster; in one story, the Joker kidnaps Robin and Batman pays the ransom by check, meaning that the Joker cannot cash it without being arrested. Comic book writer Mark Waid suggests that the 1942 story "The Joker Walks the Last Mile" was the beginning point for the character's transformation into a more goofy incarnation, a period that Grant Morrison considered to have lasted the following 30 years.
The Joker was one of the few popular villains continuing to appear regularly in Batman comics from the Golden Age into the Silver Age, as the series continued during the rise in popularity of mystery and romance comics. In 1951, Finger wrote an origin story for the Joker in Detective Comics #168, which introduced the characteristic of him formerly being the criminal Red Hood, and his disfigurement the result of a fall into a chemical vat.
In 1973, after a four-year disappearance, the Joker was revived (and revised) by writer Dennis O'Neil and artist Neal Adams. Beginning with Batman #251's "The Joker's Five-Way Revenge", the character returns to his roots as a homicidal maniac who matches wits with Batman. This story began a trend in which the Joker was used, sparingly, as a central character. O'Neil said his idea was "simply to take it back to where it started. I went to the DC library and read some of the early stories. I tried to get a sense of what Kane and Finger were after." O'Neil's 1973 run introduced the idea of the Joker being legally insane, to explain why the character is sent to Arkham Asylum (introduced by O'Neil in 1974 as Arkham Hospital) instead of to prison. Adams modified the Joker's appearance, changing his more average figure by extending his jaw and making him taller and leaner.
DC Comics was a hotbed of experimentation during the 1970s, and in 1975 the character became the first villain to feature as the title character in a comic book series, The Joker. The series followed the character's interactions with other supervillains, and the first issue was written by O'Neil. Stories balanced between emphasizing the Joker's criminality and making him a likable protagonist whom readers could support. Although he murdered thugs and civilians, he never fought Batman; this made The Joker a series in which the character's villainy prevailed over rival villains, instead of a struggle between good and evil. Because the Comics Code Authority mandated punishment for villains, each issue ended with the Joker being apprehended, limiting the scope of each story. The series never found an audience, and The Joker was canceled after nine issues (despite a "next issue" advertisement for an appearance by the Justice League). The complete series became difficult to obtain over time, often commanding high prices from collectors. In 2013, DC Comics reissued the series as a trade paperback.
The Joker has undergone many revisions since his 1940 debut. The most common interpretation of the character is that of a man who, while disguised as the criminal Red Hood, is pursued by Batman and falls into a vat of chemicals that bleaches his skin, colors his hair green and his lips red, and drives him insane. The reasons why the Joker was disguised as the Red Hood and his identity before his transformation have changed over time.
However, the Joker's unreliable memory has allowed writers to develop other origins for the character. "Case Study", a Paul Dini-Alex Ross story, describes the Joker as a sadistic gangster who creates the Red Hood identity because he misses the thrill of committing robberies. He has his fateful first meeting with Batman, which results in his disfigurement. It is suggested that the Joker is sane, and researches his crimes to look like the work of a sick mind in order to avoid the death penalty. In Batman Confidential #7–12, the character Jack is a career criminal who is bored with his work. He encounters (and becomes obsessed with) Batman during a heist, embarking on a crime spree to attract the Caped Crusader's attention. After Jack injures Batman's girlfriend, Batman scars Jack's face with a permanent grin and betrays him to a group of mobsters, who torture him in a chemical plant. Jack escapes but falls into an empty vat as gunfire punctures chemical tanks above him. The flood of chemicals (used in anti-psychotic medication) alters his appearance and completes his transformation. In The Brave and the Bold #31, the superhero Atom enters the Joker's mind and sees the criminal's former self - a violent sociopath who tortures animals, murders his own parents, and kills for fun while committing robberies. Snyder's "Zero Year" (2013) suggests that the pre-disfigured Joker was a criminal mastermind leading a gang of Red Hoods.
Renowned as Batman's greatest enemy, the Joker is known by a number of nicknames, including the Clown Prince of Crime, the Harlequin of Hate, the Ace of Knaves, and the Jester of Genocide. During the evolution of the DC Universe, interpretations and versions of the Joker have taken two main forms. The original, dominant image is that of a psychopath with genius-level intelligence and a warped, sadistic sense of humor. The other version, popular in comic books from the late 1940s to the 1960s and in the 1960s television series, is an eccentric, harmless prankster and thief. Like other long-lived characters, the Joker's character and cultural interpretations have changed with time; however, unlike other characters who may need to reconcile or ignore previous versions to make sense, more than any other comic book character, the Joker thrives on his mutable and irreconcilable identities. The Joker is typically seen in a purple suit with a long-tailed, padded-shoulder jacket, a string tie, gloves, striped pants and spats on pointed-toe shoes (sometimes with a wide-brimmed hat). This appearance is such a fundamental aspect of the character that when the 2004 animated series The Batman placed the Joker in a straitjacket, it quickly redesigned him in his familiar suit.
The Joker's main characteristic is his apparent insanity, although he is not described as having any particular psychological disorder. Like a psychopath, he lacks empathy, a conscience, and concern over right and wrong. In Arkham Asylum: A Serious House on Serious Earth, the Joker is described as capable of processing outside sensory information only by adapting to it. This enables him to create a new personality every day (depending on what would benefit him) and explains why, at different times, he is a mischievous clown or a psychopathic killer. In "The Clown at Midnight" (Batman #663 (April 2007)), the Joker enters a meditative state where he evaluates his previous selves to consciously create a new personality, effectively modifying himself for his needs.
Snyder's "Death of the Family" describes the Joker as in love with Batman, although not in a traditionally romantic way. The Joker believes that Batman has not killed him because he makes Batman better and he loves the villain for that. Batman comic book writer Peter Tomasi concurred, stating that the Joker's main goal is to make Batman the best that he can be. The Joker and Batman represent opposites: the extroverted Joker wears colorful clothing and embraces chaos, while the introverted, monochromatic Batman represents order and discipline. The Joker is often depicted as defining his existence through his conflict with Batman. In 1994's "Going Sane", the villain tries to lead a normal life after Batman's (apparent) death, only to become his old self again when Batman reappears; in "Emperor Joker", an apparently omnipotent Joker cannot destroy Batman without undoing himself. Since the Joker is simply "the Joker", he believes that Batman is "Batman" (with or without the costume) and has no interest in what is behind Batman's mask, ignoring opportunities to learn Batman's secret identity. Given the opportunity to kill Batman, the villain demurs; he believes that without their game, winning is pointless. The character has no desire for typical criminal goals like money or power; his criminality is designed only to continue his game with Batman.
The Joker has no inherent superhuman abilities. He commits crimes with a variety of weaponized thematic props such as a deck of razor-tipped playing cards, rolling marbles, jack-in-the-boxes with unpleasant surprises and exploding cigars capable of leveling a building. The flower in his lapel sprays acid, and his hand often holds a lethal joy buzzer conducting a million volts of electricity, although both items were introduced in 1952 as harmless joke items. However, his chemical genius provides his most-notable weapon: "Joker venom", a liquid or gaseous toxin that sends its targets into fits of uncontrollable laughter; higher doses can lead to paralysis, coma or death, leaving its victim with a ghoulish, pained rictus grin. The Joker has used venom since his debut; only he knows the formula, and is shown to be gifted enough to manufacture the toxin from ordinary household chemicals. Another version of the venom (used in Joker: Last Laugh) makes its victims resemble the Joker, susceptible to his orders. The villain is immune to venom and most poisons; in Batman #663 (April 2007), Morrison writes that being "an avid consumer of his own chemical experiments, the Joker's immunity to poison concoctions that might kill another man in an instant has been developed over years of dedicated abuse."
The Joker's unpredictable, homicidal nature makes him one of the most feared supervillains in the DC Universe; the Trickster says in the 1995 miniseries Underworld Unleashed, "When super-villains want to scare each other, they tell Joker stories." Gotham's villains also feel threatened by the character; depending on the circumstances, he is as likely to fight with his rivals for control of the city as he is to join them for an entertaining outcome. The Joker interacts with other supervillains who oppose Batman, whether he is on the streets or in Arkham Asylum. He has collaborated with criminals like the Penguin, the Riddler, and Two-Face, although these partnerships rarely end well due to the Joker's desire for unbridled chaos, and he uses his stature to lead others (such as Killer Croc and the Scarecrow). The Joker's greatest rival is Lex Luthor, the smartest man in the world and Superman's archenemy. Although the villains have a friendly partnership in 1950's World's Finest Comics #88, later unions emphasized their mutual hostility and clashing egos.
Despite his tendency to kill subordinates on a whim, the Joker has no difficulty attracting henchmen with a seemingly infinite cash supply and intimidation; they are too afraid of their employer to refuse his demands that they wear red clown noses or laugh at his macabre jokes. Even with his unpredictability and lack of superhuman powers, the 2007 limited series Salvation Run sees hundreds of villains fall under his spell because they are more afraid of him than Lex Luthor. Batman #186 (1966) introduced the Joker's first sidekick: the one-shot character Gaggy Gagsworthy, who is short and dressed like a clown; the character was later resurrected as an enemy of his replacement, Harley Quinn. Introduced in the 1992 animated series, Quinn is the Joker's former Arkham psychiatrist who develops an obsessive infatuation with him and dons a red-and-black harlequin costume to join him as his sidekick and on-off girlfriend. They have a classic abusive relationship; even though the Joker constantly insults, hurts, and even tries to kill Harley, she always returns to him, convinced that he loves her. The Joker is sometimes shown to keep laughing hyenas as pets; this trait was introduced in the 1977 animated series The New Adventures of Batman. A 1976 issue of Batman Family introduced Duela Dent as the Joker's daughter, though her parentage claim was later proven to be false.
Although his chief obsession is Batman, the character has occasionally ventured outside Gotham City to fight Batman's superhero allies. In "To Laugh and Die in Metropolis" (1987) the character kidnaps Lois Lane, distracting Superman with a nuclear weapon. The story is notable for the Joker taking on a (relative) god and the ease with which Superman defeats him—it took only 17 pages. Asked why he came to Metropolis, the Joker replies simply: "Oh Superman, why not?" In 1995, the Joker fought his third major DC hero: Wonder Woman, who drew on the Greek god of trickery to temper the Joker's humor and shatter his confidence. The character has joined supervillain groups like the Injustice Gang and the Injustice League to take on superhero groups like the Justice League.
The Joker's controlling and abusive relationship with Harley Quinn has been analyzed as a means of the Joker reinforcing his own belief in his power in a world where he may be killed or neutralized by another villain or Batman. Joker mirrors his identity through Harley in her appearance, and even though he may ignore or act indifferent towards her, he continues to try to subject her to his control. When Harley successfully defeats Batman in Mad Love (1994), the Joker, emasculated by his own failure, severely injures her out of fear of what the other villains will think of him; however, while Harley recovers, the Joker sends her flowers, which she accepts, reasserting his control over her.
The Joker is considered one of the most recognizable and iconic fictional characters in popular culture, one of the best comic villains, and one of the greatest villains of all time. The character was well-liked following his debut, appearing in nine out of the first 12 Batman issues, and remained one of Batman's most popular foes throughout his publication. The character is considered one of the four top comic book characters, alongside Batman, Superman, and Spider-Man. Indeed, when DC Comics released the original series of Greatest Stories Ever Told (1987–1988) featuring collections of stories about heroes like Batman and Superman, the Joker was the only villain included alongside them. The character has been the focus of ethical discussion on the desirability of Batman (who adheres to an unbreakable code forbidding killing) saving lives by murdering the Joker (a relentless dealer of death). These debates weigh the positive (stopping the Joker permanently) against its effect on Batman's character and the possibility that he might begin killing all criminals.
The Joker's popularity (and his role as Batman's enemy) has involved the character in most Batman-related media, from television to video games. These adaptations of the character have been received positively on film, television, and in video games. As in the comics, the character's personality and appearance shift; he is campy, ferocious or unstable, depending on the author and the intended audience.
The phrase "We live in a society" is commonly associated with the Joker in memes, especially after the release of the trailers of the 2019 film Joker. The line garnered particular notoriety after a trailer for the film Zack Snyder's Justice League (2021) featured Joker saying the line.
The Joker has appeared in a variety of media, including television series, animated and live-action films. WorldCat (a catalog of libraries in 170 countries) records over 250 productions featuring the Joker as a subject, including films, books, and video games, and Batman films which feature the character are typically the most successful. The character's earliest on-screen adaptation was in the 1966 television series Batman and its film adaptation Batman, in which he was played as a cackling prankster by Cesar Romero (reflecting his contemporary comic counterpart). The Joker then appeared in the animated television series The Adventures of Batman (1968, voiced by Ted Knight), The New Adventures of Batman (1977, voiced by Lennie Weinrib) and The Super Powers Team: Galactic Guardians (1985, voiced by Frank Welker).
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Phillips, Daniel (January 18, 2008). "Rogue's Gallery: The Joker". IGN. p. 2. Archived from the original on April 21, 2014. Retrieved November 18, 2013. [T]he Joker decides to brand every fish product in Gotham with his trademark grin, going so far as to blackmail and murder copyright officials until he's compensated for his hideous innovation. https://ign.com/articles/2008/02/01/rogues-gallery-the-joker?page=2
Patrick, Seb (July 15, 2008). "10 Essential Joker Stories". Den of Geek. London, England: Dennis Publishing. Archived from the original on October 14, 2013. Retrieved October 12, 2013. https://denofgeek.com/books-comics/batman/11301/10-essential-joker-stories
Pearson, Roberta E.; Uricchio, William (1991). "Notes from the Batcave: An Interview with Dennis O'Neil.". The Many Lives of the Batman: Critical Approaches to a Superhero and His Media. Abingdon, England: Routledge. p. 18. ISBN 978-0-85170-276-6. 978-0-85170-276-6
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Phillips, Daniel (December 8, 2008). "Why So Serious?: The Many Looks of Joker (Page 2)". IGN. Los Angeles, California: j2 Global. Archived from the original on October 11, 2014. Retrieved October 12, 2013. https://uk.ign.com/articles/2008/12/08/why-so-serious-the-many-looks-of-joker?page=2
Manning 2011, p. 176. - Manning, Matthew K. (2011). The Joker: A Visual History of the Clown Prince of Crime. Bloomington, Indiana: Universe Publishing. ISBN 978-0-7893-2247-0.
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Manning 2011, p. 177. - Manning, Matthew K. (2011). The Joker: A Visual History of the Clown Prince of Crime. Bloomington, Indiana: Universe Publishing. ISBN 978-0-7893-2247-0.
Sims, Chris (September 12, 2013). "Bizarro Back Issues: The Joker's Solo Series (1975)". ComicsAlliance. Archived from the original on October 14, 2013. Retrieved October 12, 2013. https://web.archive.org/web/20131014125131/http://comicsalliance.com/bizarro-back-issues-the-jokers-solo-series-1975/
Manning 2011, p. 177. - Manning, Matthew K. (2011). The Joker: A Visual History of the Clown Prince of Crime. Bloomington, Indiana: Universe Publishing. ISBN 978-0-7893-2247-0.
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Weiner & Peaslee 2015, p. XVI. - Weiner, Robert G.; Peaslee, Robert Moses (2015). The Joker: A Serious Study of the Clown Prince of Crime. Jackson, Mississippi: University Press of Mississippi. ISBN 978-1-62846-238-8.
Manning 2011, p. 177. - Manning, Matthew K. (2011). The Joker: A Visual History of the Clown Prince of Crime. Bloomington, Indiana: Universe Publishing. ISBN 978-0-7893-2247-0.
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Phillips, Daniel (January 18, 2008). "Rogue's Gallery: The Joker". IGN. p. 2. Archived from the original on April 21, 2014. Retrieved November 18, 2013. [T]he Joker decides to brand every fish product in Gotham with his trademark grin, going so far as to blackmail and murder copyright officials until he's compensated for his hideous innovation. https://ign.com/articles/2008/02/01/rogues-gallery-the-joker?page=2
"Joker Panel Interview: Steve Englehart on The Laughing Fish". The Ongoing Adventures of Rocket Llama. August 9, 2009. Archived from the original on October 19, 2013. Retrieved October 18, 2013. https://web.archive.org/web/20131019084439/http://www.rocketllama.com/blog-it/2009/08/09/joker-steve-englehart-the-laughing-fish/
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Greenberger and Manning, p. 163: "In this fondly remembered tale that was later adapted into an episode of the 1990s cartoon Batman: The Animated Series, the Joker poisoned the harbors of Gotham so that the fish would all bear his signature grin, a look the Joker then tried to trademark in order to collect royalties."
"Joker Panel Interview: Steve Englehart on The Laughing Fish". The Ongoing Adventures of Rocket Llama. August 9, 2009. Archived from the original on October 19, 2013. Retrieved October 18, 2013. https://web.archive.org/web/20131019084439/http://www.rocketllama.com/blog-it/2009/08/09/joker-steve-englehart-the-laughing-fish/
"Batman Artist Rogers is Dead". Sci Fi. March 28, 2007. Archived from the original on April 11, 2008. Retrieved May 2, 2008. Even though their Batman run was only six issues, the three laid the foundation for later Batman comics. Their stories include the classic 'Laughing Fish' (in which the Joker's face appeared on fish); they were adapted for Batman: The Animated Series in the 1990s. Earlier drafts of the 1989 Batman film with Michael Keaton as the Dark Knight were based heavily on their work https://web.archive.org/web/20080411230610/http://www.scifi.com/scifiwire/index.php?category=5&id=40748
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Cohen, Alex (July 16, 2008). "The Joker: Torn Between Goof And Evil". NPR. Archived from the original on April 8, 2014. Retrieved October 12, 2013. https://www.npr.org/templates/story/story.php?storyId=92572470
Manning 2011, p. 182. - Manning, Matthew K. (2011). The Joker: A Visual History of the Clown Prince of Crime. Bloomington, Indiana: Universe Publishing. ISBN 978-0-7893-2247-0.
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Manning 2011, p. 183 DC birthed the Dark Age with the twelve-part Crisis on Infinite Earths. Not only did the series kill off Silver Age icons the Flash and Supergirl, it cleared out decades of continuity bramble... - Manning, Matthew K. (2011). The Joker: A Visual History of the Clown Prince of Crime. Bloomington, Indiana: Universe Publishing. ISBN 978-0-7893-2247-0.
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Manning 2011, p. 183. - Manning, Matthew K. (2011). The Joker: A Visual History of the Clown Prince of Crime. Bloomington, Indiana: Universe Publishing. ISBN 978-0-7893-2247-0.
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Manning 2011, p. 108. - Manning, Matthew K. (2011). The Joker: A Visual History of the Clown Prince of Crime. Bloomington, Indiana: Universe Publishing. ISBN 978-0-7893-2247-0.
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Greenberger and Manning, p. 38: "Offering keen insight into both the minds of the Joker and Batman, this special is considered by most Batman fans to be the definitive Joker story of all time."
Manning 2011, p. 188. - Manning, Matthew K. (2011). The Joker: A Visual History of the Clown Prince of Crime. Bloomington, Indiana: Universe Publishing. ISBN 978-0-7893-2247-0.
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Sanderson, Peter (May 13, 2005). "Comics in Context #84: Dark Definitive". IGN. Los Angeles, California: j2 Global. Archived from the original on April 22, 2014. Retrieved April 22, 2014. https://uk.ign.com/articles/2005/05/13/comics-in-context-84-dark-definitive?page=6
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Phillips, Daniel (January 18, 2008). "Rogue's Gallery: The Joker". IGN. p. 2. Archived from the original on April 21, 2014. Retrieved November 18, 2013. [T]he Joker decides to brand every fish product in Gotham with his trademark grin, going so far as to blackmail and murder copyright officials until he's compensated for his hideous innovation. https://ign.com/articles/2008/02/01/rogues-gallery-the-joker?page=2
"The Origins Of! The Joker". Cracked. Archived from the original on October 14, 2013. Retrieved October 12, 2013. http://www.cracked.com/funny-5775-the-origins-of21-joker/
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Manning 2011, p. 188. - Manning, Matthew K. (2011). The Joker: A Visual History of the Clown Prince of Crime. Bloomington, Indiana: Universe Publishing. ISBN 978-0-7893-2247-0.
Goldstein, Hilary (June 9, 2005). "Batman: A Death in the Family Review". IGN. Archived from the original on May 14, 2014. Retrieved October 12, 2013. https://uk.ign.com/articles/2005/06/09/batman-a-death-in-the-family-review
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Kelly, Stuart (April 30, 2015). "Has DC killed Batman and the Joker?". The Guardian. Archived from the original on May 29, 2015. Retrieved April 30, 2015. https://www.theguardian.com/books/2015/apr/30/has-dc-killed-batman-and-joker-endgame-scott-snyder
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