Joker

Jackson "Jack" Naiper (ジャクソン・“ジャック”・ネイピアー, Jakuson "Jakku" Neipiā), also known as "Joker" (ジョーカー, Jōkā), is fictional character and antagonist of the Marvelous DC's Justice Avengers series created by C. B. Cebulski and Jim Lee.

He is an insane super-villain of Gotham City and Batman's most widely known arch-nemesis, believing himself to be inextricably linked to Batman himself, and considered him to be his own favorite sparring partner and opponent.

He demonstrates his willingness to encourage the psychosis of others or even drive them insane. He is also a chronic resident of Arkham committing elaborate crimes when free. He views these as "jokes" at the expense of Batman, GCPD, or the city in general.

"All it takes is one, rotten day, to transform a normal man, into a monster... Well, in my case, a rotten day and a chemical bath."
 * —Joker on his origins.

Appearance & Biography

 * Voice Actor: Troy Baker (English), Not Known (Japanese), Not Known (Arabic), Not Known (Basque), Not Known (Brazilian), Not Known (Cantonese), Not Known (Catalan), Not Known (Chinese), Not Known (Croatian), Not Known (Danish), Not Known (Dutch), Aku Laitinen (Finnish), Not Known (Filipino), Not Known (French), Not Known (Galician), Not Known (German), Not Known (Greek), Not Known (Hebrew), Not Known (Hong Kong), Jozsef Kerekes (Hungarian), Not Known (Indonesian), Not Known (Italian), Not Known (Korean), Not Known (Mandarin), Not Known (Norwegian), Not Known (Polish), Not Known (Portuguese), Not Known (Romanian), Not Known (Russian), Not Known (Serbian), Not Known (Spanish), Not Known (Swedish), Not Known (Tagalog), Not Known (Thai), Not Known (Valencian), Not Known (Ukrainian), Not Known (Brazilian Portuguese), Not Known (Canadian French), Not Known (European Spanish), Not Known (European Portuguese), Not Known (Latin American Spanish), Not Known (Latin Spanish), Not Known (Spain-Spanish)

Biography
The arch nemesis of Batman, Joker is a maniacal harlequin whose bizarre appearance and unerring instinct for the absurd have earned him a reputation as "the most dangerous criminal in the annals of crime." For Joker, each transgression he commits is an elaborate joke in which he tries to leave his victims dying with laughter - literally. More than any other enemy, Joker becomes inextricably linked to Batman, as the crazed clown's plots begin to take increasingly more personal tolls on our crime fighter.

Wanting nothing more than to make people laugh while he was still sane, Joker was born when he fell into a vat of chemicals. Rising out of the vat, he was transformed into the crazy, laughing and white-skinned clown that's a constant thorn in Batman's side.

As Joker

 * Hair Color: Green and Light Green
 * Skin Color: White
 * Eye Color: Not Known
 * Height: Not Known
 * Weight: Not Known

Attributes:

 * Surprisingly strong hand-to-hand combatant.
 * His past is unknown; conflicting, unconfirmed reports state that he was a failed comedian, a petty thief, and a broken family man.

Friends/Allies

 * Jokerz
 * Jackal
 * Harleen Quinzel/Harley Quinn
 * Siobhan McDougal/Silver Banshee - Ally
 * Cyrus Gold/Solomon Grundy - Teammate
 * Jonathan Crane/Scarecrow - Teammate
 * Basil Karlo/Clayface - Teammate

Neutral

 * Ethan Bennett/Clayface
 * Poison Ivy
 * Gogo Shoto - Captive.

Enemies

 * Justice League
 * Superman
 * Bruce Wayne/Batman - Enemy
 * Oliver Queen/Green Arrow - Enemy
 * Teen Titans
 * Richard Grayson/Robin/Nightwing - Enemy
 * Timothy Drake/Red Robin - Enemy

Powers

 * Joker Venom Immunity:

Abilities

 * Gadgetry: Joker commits crimes with countless "comedic" weapons (such as razor-sharp playing cards, acid-spewing flowers, cyanide pies, and lethally electric joy buzzers) and Joker venom.
 * Genius-Level Intellect: Joker is also very skilled in the fields of chemistry, genetics, and nuclear engineering. He also seems capable of mastering whatever he puts his twisted mind to when he wants to.
 * Chemistry:
 * Martial Arts: Joker also moves and fights with a Monkey Kung Fu-like style using his feet as dexterously as his hands, and often hangs from the walls and ceilings (as the series progresses, these abilities do not appear as much).
 * Singing: Joker has shown adept skills in singing when he once sang Harley Quinn a love song.

Weaknesses

 * Insanity:

Equipment

 * Joker Venom:

Weapons

 * Joker's Joy Buzzer:

Notes & Trivia

 * Joker's line expressing how men are easily driven insane and how he became what he is after only "one rotten day" is based off a monologue about the entire world in comparison to the Joker in Batman: The Killing Joke.
 * Basil Karlo, shows that he has somewhat of a friendship with Joker. Ironically, the original Clayface has a gigantic grudge against the clown.