Poison Ivy is a fictional character appearing in comic books published by DC Comics, commonly in association with superhero Batman, created by Robert Kanigher and Sheldon Moldoff. The character made her debut in Batman #181 (June 1966). Her real name is Pamela Lillian Isley.

Poison Ivy has been portrayed as a love interest of Batman and is known for her infatuation with him. She has teamed up on occasion with fellow villains Catwoman and Harley Quinn, with Harley being her close friend, recurring ally and sometimes romantic interest. She is a Gotham City botanist who is obsessed with plants, ecological extinction, and environmentalism. Ivy typically wears a green one-piece outfit adorned with leaves and often has plant vines extending over her limbs. She uses plant toxins and mind-controlling pheromones for her criminal activities, which are usually aimed at protecting endangered species and the natural environment. She was originally characterized as a supervillain, but as of the New 52 and DC Rebirth, she has periodically been depicted as an antiheroine, often doing the wrong things for the right reasons.

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The Joker is a supervillain created by Bill Finger, Bob Kane, and Jerry Robinson who first appeared in the debut issue of the comic book Batman (April 25, 1940), published by DC Comics. Credit for the Joker's creation is disputed; Kane and Robinson claimed responsibility for the Joker's design while acknowledging Finger's writing contribution. Although the Joker was planned to be killed off during his initial appearance, he was spared by editorial intervention, allowing the character to endure as the archenemy of the superhero Batman.

In his comic book appearances, the Joker is portrayed as a criminal mastermind. Introduced as a psychopath with a warped, sadistic sense of humor, the character became a goofy prankster in the late 1950s in response to regulation by the Comics Code Authority, before returning to his darker roots during the early 1970s. As Batman's nemesis, the Joker has been part of the superhero's defining stories, including the murder of Jason Todd—the second Robin and Batman's ward—and the paralysis of one of Batman's allies, Barbara Gordon. The Joker has had various possible origin stories during his decades of appearances. The most common story involves him falling into a tank of chemical waste which bleaches his skin white and turns his hair green and lips bright red; the resulting disfigurement drives him insane. The antithesis of Batman in personality and appearance, the Joker is considered by critics to be his perfect adversary.

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Clayface is an alias used by several fictional supervillains appearing in American comic books published by DC Comics. Most incarnations of the character possess clay-like bodies and shape-shifting abilities, and all of them have been depicted as adversaries of the superhero Batman. In 2009, Clayface was ranked as IGN's 73rd Greatest Comic Book Villain of All Time.

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Born in Hawaii, Nanaue is a humanoid shark. His father is "The King of All Sharks"—also known as the Shark God. Originally there were some doubts surrounding his origins, as other characters, such as special agent Sam Makoa, dismissed his origins as superstition and referred to Nanaue as a "savage mutation" and it was also implied that he was one of the "Wild Men", evolved animals based on those in Kamandi: The Last Boy on Earth, but the now-ended Aquaman: Sword of Atlantis series put an end to the controversy by firmly establishing him as the Shark God's son.

King Shark was responsible for a number of missing persons several years before Superboy arrived in Hawaii. Sam Makoa was responsible for bringing him in and bore the scars to prove it. King Shark is freed by the Silicon Dragons who plan on hiring him.^[2] Nanaue is not interested and kills his liberators before heading to his mother's house. His mother allows him to bite her arm off to feed. Superboy managed to take him down with his heat vision. When Superboy and Makoa were assigned to the Suicide Squad to destroy the Silicon Dragons, King Shark was forced to help. An explosive belt was strapped to his waist, set to detonate if anything happened to Makoa. Other members of the Squad included Knockout and Squad veterans Deadshot and Captain Boomerang.

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Sy Borgman used to work for the U.S Government. He once stopped a Terrorist group run by the Russian Tolstakk brothers, though most of his body was permanently damaged by the feat. His body parts were replaced by the most state-of-the art bionics at the time, which gave him extra strength. At this time, he gained the nickname Sy-Borg.

Years later, he met with Harley Quinn when she was disguised as her psychiatric alter ego, helped her find the one who put the bounty on her. Afterwards, he became good friends with Harley and stayed with her at the apartment she owned.

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The Queen of Fables' was originally a sorceress from another dimension until she was exiled to Earth. She reigned until princess Snow White defied her and she was trapped in the Book of Fables. Snow White used the book to turn fact into fiction and undo all the Queen's terrible acts.

Countless generations later the Queen was unwittingly released from her prison. She transformed Manhattan into an enchanted forest full of fantastic creatures extracted from folk tales. Just after being released she attempted to locate Snow White, mistaking a television for a magic mirror, and ordered it to show her -"The Fairest In The Land." Coincidentally, the TV was currently showing the news, reporting the Justice League's latest battle, and at that moment showing Wonder Woman. Believing the Amazon Princess to be her daughter, she confronts her, forcing her into a deep sleep in an enchanted forest. Aquaman awakens Wonder Woman with his kiss (as he was once a Prince, and is now the King of Atlantis, it counts as a kiss from a Prince), and Batman discovers the book that the Queen had been trapped in. Eventually, the Justice League managed to stop her, by making her realize that she was no longer immortal and eternally beautiful in the real world, and lock her up once more (by trapping her within a book on the United States Tax Code, where she could find nothing imaginative to use as a weapon), undoing her spell again.

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Alexander Joseph "Lex" Luthor is a fictional supervillain appearing in publications by the publisher DC Comics. The character was created by Jerry Siegel and Joe Shuster. Lex Luthor is said to have first appeared in both / either Action Comics #23 (April 1940) and Superman #4 (Spring 1940) and has since endured as the archenemy of Superman.

Originally introduced as a mad scientist whose schemes Superman would routinely foil, Lex's portrayal has evolved over the years and his characterisation has deepened. In contemporary stories, Lex is portrayed as a wealthy, power-mad American business magnate, ingenious engineer, philanthropist to the city of Metropolis, and one of the most intelligent people in the world. A well-known public figure, he is the owner of a conglomerate called LexCorp. He is intent on ridding the world of the alien Superman, whom Lex Luthor views as an obstacle to his plans and as a threat to the very existence of humanity. Given his high status as a supervillain, however, he has often come into conflict with Batman and other superheroes in the DC Universe.

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The Riddler (Edward Nigma or Nygma) is a supervillain appearing in comic books published by DC Comics, created by Bill Finger and Dick Sprang. He first appeared in Detective Comics #140 (October 1948). The character is commonly depicted as a criminal mastermind in Gotham City who takes delight in incorporating riddles and puzzles into his schemes, leaving them as clues for the authorities to solve. The Riddler is one of the most enduring enemies of superhero Batman and belongs to the collective of adversaries that make up his rogues gallery.

In 2009, The Riddler was ranked as IGN's 59th Greatest Comic Book Villain of All Time.The character has been substantially adapted from the comics into various forms of media, including feature films, television series, and video games. The Riddler has been voiced by John Glover in the DC animated universe, Robert Englund in The Batman, and Wally Wingert in the Batman: Arkham video game series. He has been portrayed in live-action by Frank Gorshin and John Astin in the 1960s Batman television series, Jim Carrey in the 1995 film Batman Forever, and Cory Michael Smith in the FOX television show Gotham.

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Batman is a fictional superhero appearing in American comic books published by DC Comics. The character was created by artist Bob Kane and writer Bill Finger, and first appeared in Detective Comics #27 in 1939. Originally named the "Bat-Man," the character is also referred to by such epithets as the Caped Crusader, the Dark Knight, and the World's Greatest Detective.

Batman's secret identity is Bruce Wayne, a wealthy American playboy, philanthropist, and owner of Wayne Enterprises. After witnessing the murder of his parents Dr. Thomas Wayne and Martha Wayne as a child, he swore vengeance against criminals, an oath tempered by a sense of justice. Bruce Wayne trains himself physically and intellectually and crafts a bat-inspired persona to fight crime.

Batman operates in the fictional Gotham City with assistance from various supporting characters, including his butler Alfred, police commissioner Jim Gordon, and vigilante allies such as Robin. Unlike most superheroes, Batman does not possess any inhuman superpowers. He does, however, possess a genius-level intellect, is a peerless martial artist, and his vast wealth affords him an extraordinary arsenal of weaponry and equipment. A large assortment of villains make up Batman's rogues gallery, including his archenemy, the Joker.

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Doctor Psycho is a fictional character appearing in DC Comics publications and related media. Traditionally presented as an adversary of Wonder Woman, he was first introduced to comics readers in the 1940s by Wonder Woman creator William Moulton Marston. He has since undergone several minor updates over the years as comics continuities have shifted and evolved. In his original appearances, Doctor Psycho demonstrated a command over the occult and was able to harness supernatural energies. Since 1987, he has been presented as a powerful telepath. Despite these changes, Doctor Psycho has consistently been portrayed as suffering from mental illness (ranging from mild obsessiveness to full-blown insanity), possessing a diminutive stature, and harboring a misogynistic hatred of women.

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James W. Gordon is a fictional character appearing in American comic books published by DC Comics, most commonly in association with the superhero Batman. The character debuted in the first panel of Detective Comics #27 (May 1939), Batman's first appearance, where he is referred to simply as Commissioner Gordon. The character was created by Bill Finger and Bob Kane. Commissioner Gordon made his debut as an ally of Batman, making him the first Batman supporting character ever to be introduced.

As the police commissioner of Gotham City, Gordon shares Batman's deep commitment to ridding the city of crime. The character is typically portrayed as having full trust in Batman and is even somewhat dependent on him. In many modern stories, he is somewhat skeptical of Batman's vigilante methods, but nevertheless believes that Gotham needs him. The two have a mutual respect and tacit friendship. Gordon is the father or adoptive father (depending on the continuity) of Barbara Gordon, the first modern Batgirl and the information broker Oracle.

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