The Joker debuted in Batman #1 (April 1940) as the eponymous character's first villain, about a year after Batman's debut in Detective Comics #27 (May 1939).
In Issue #5 of Flashpoint Beyond, a sequel to Flashpoint, the universe's version of the Joker, Martha Wayne, and the Batman of the universe, Thomas Wayne, are seen discusing the villain's true identity.
The Joker was created in 1940 by illustrator Bob Kane and writer Bill Finger. Their collaborator Jerry Robinson also claimed credit for the character's inspiration.
The psychopathology Arthur exhibits is unclear, preventing diagnosis of psychotic disorder or schizophrenia; the unusual combination of symptoms suggests a complex mix of features of certain personality traits, namely psychopathy and narcissism (he meets DSM-5 criteria for narcissistic personality disorder).
Presumably when Joker learned Batman's identity when he unmasked Tim Drake since Harley was his accomplice, it is possible she learned his identity and kept it out of respect after the Joker's death.
The Joker has had various possible origin stories during his decades of appearances. The most common story involves his falling into a tank of chemical waste that bleaches his skin white and turns his hair green and lips bright red; the resulting disfigurement drives him insane.
was a Cuban American film and television actor, who played The Joker in the 1960s television series Batman. In 1966, the show was transferred to movie theaters, and Romero became the first actor to portray the Joker in a motion picture.
The comics series The Joker: The Man Who Stopped Laughing features Batman's nemesis get pregnant after a curse is placed on him, Daily Mail reported. Eventually, the Joker "vomits a sort of brown goo" that transforms first into a baby boy and then into a mini version of himself.
Created by Bill Finger and Bob Kane, the character first appeared in Detective Comics #33 (November 1939). Batman: Three Jokers #1 (August 2020). In Batman's origin story, Joe Chill is the mugger who murders young Bruce Wayne's parents, Dr. Thomas Wayne and Martha Wayne.
After this, the DC heroes do what, apparently, nobody has ever thought of doing before, and simply ask Joker if he has a daughter, to which he responds that he doesn't.
She is shown to be neglectful as she didn't save Arthur as a child from his abuse. It is currently unknown why she let this happen, but it's presumed she was abused by him as well, causing her mental problems. While she cares about her son, she has shown to lie to him multiple occasions which leads to her death .
Ledger, who played the Joker in Christopher Nolan's The Dark Knight, died on 22 January 2008 following a prescription drug overdose in his New York apartment. He was 28 years old. Stephen Gaghan, a director and writer, recently divulged that Ledger had died with the script for his film in bed.
Mad Love introduces Harley Quinn as a former psychologist named Harleen Quinzel who fell in love with the Joker during her internship at Gotham City's Arkham Asylum and details her transformation into the Joker's villainous accomplice Harley Quinn, as well as the Joker's lack of respect for Harley.
It is then revealed that the Joker's real name is "Jack Oswald White." Martha then shares that she visited the Flashpoint universe's version of Jack Oswald White, discovering him to be a struggling family man supporting his wife and a child as a janitor at Wayne Casino.
Superman figures it out when he hears Bruce's earpiece during the party. Batman most likely figured out Superman's identity during his research on him.
As it stands, Joker's knowledge of Batman's true identity remains a closely guarded secret, one the clown is willing to keep until the very end. Without the mystery of the man behind the mask, Batman would cease to exist.
Personality Disorder, specifically, Histrionic Personality Disorder plays a key part in Harley Quinn's life. People with Histrionic Personality Disorder are “pervasive and excessive emotionally and display attention-seeking behavior” (Bornstein 1998).
Later, Arthur goes to Arkham State Hospital and steals his mother's records, and finds out that he was in fact adopted, and that Thomas Wayne is not his father and that Penny is not his true mother.
The Joker (or Arthur) appears to have a complex mix of diagnoses, including pseudobulbar affect – a rare condition consisting of uncontrollable laugher or crying, and possibly a psychotic illness, evidenced by his apparent hallucinations about the subject of his affections (played by Zazie Beetz).
