Jackson Napier

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 Batman's arch-nemesis, believing himself to be inextricably linked to Batman, and considered him to be his favorite sparring partner and opponent. He was born by falling into a vat of chemicals, which bleached his skin, dyed his hair and drove him to insanity.

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 Gotham 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
 * Age: Not Known
 * Birthday: Not Known
 * Height: Not Known
 * Weight: Not Known

Powers

 * Joker Venom Immunity:
 * Cheating Death:
 * Vampirism (Formerly):
 * Fangs:
 * Claws:
 * Enhanced Senses:
 * Enhanced Vision:
 * Enhanced Hearing:
 * Enhanced Sense of Smell:
 * Superhuman Strength:
 * Superhuman Stamina:
 * Adhesion:

Abilities

 * Hand-to-Hand Combat (Advanced):
 * 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.
 * 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:
 * Singing: Joker has shown adept skills in singing when he once sang Harley Quinn a love song.
 * Peak Human Condition:
 * Escapology:
 * Acrobatics:
 * Contortionism:
 * Throwing:
 * Weaponry':
 * Stealth:

Weaknesses

 * Insanity:
 * Vulnerability to Garlic (Formerly):
 * Vulnerability to Sunlight (Formerly):

Equipment

 * Joker Venom:

Weapons

 * Joker's Joy Buzzer:

Notes & Trivia

 * Joker first appeared in Batman #1 (Spring 1940)
 * Joker is immune to his own Joker toxin and many other side effects of harmful chemical exposure.
 * Despite having a comical personality, Joker has the stance of a flirty female character.
 * Joker is notorious in the hero community for his unpredictability and is largely left to the Batman to deal with.
 * Joker's inmate number of Arkham Asylum is 0801.