List of DC Comics characters: J

J.A.K.E. 1

Main article: G.I. Robot § J.A.K.E. 1

J.A.K.E. 2

Main article: G.I. Robot § J.A.K.E. 2

J'onn J'onzz

Main article: Martian Manhunter

Jack

Main article: Metal Men § Members

Jack of Clubs

Main article: Royal Flush Gang § First Gang: Clubs

Jack of Fire

Main article: The Pentacle § Membership

Jack O'Lantern

Main article: Jack O'Lantern (DC Comics)

Jack the Ripper

Main article: Jack the Ripper fiction § Comics

Jack the Ripper is a fictionalized version of a real-life serial killer. The character, created by Brian Augustyn and Mike Mignola, first appeared in Gotham by Gaslight #1 (February 1989). Jacob Packer had been trained in both medicine and law by Thomas Wayne but Martha Wayne rejected him. Packer hired an assassin to kill the two and afterwards killed women to silence his own insanity. Jack the Ripper frames Bruce Wayne for his killings in Gotham City. A trial is held in which Packer is a defense attorney. Bruce is convicted, sentenced to be hanged and imprisoned in Arkham Asylum but eventually figures out the killer's identity and escapes from prison with Alfred Pennyworth's help. Batman confronted Jack the Ripper throughout Gotham and the two eventually come to the graves of Thomas and Martha before he was killed by Inspector James Gordon.

Jack the Ripper in other media

Jacob Packer makes a non-speaking cameo appearance in Batman: Gotham by Gaslight.

Jackal

Main article: Deathstroke § Origins

Jackhammer

Main article: Demolition Team § Members

Jaclyn

Main article: List of Green Lanterns § Teen Lanterns

Jade

Main article: Jade (DC Comics)

Jacob Ashe

Main article: Cinder and Ashe § Plot summary

Jakeem Thunder

Main article: Jakeem Thunder

Aubrey James

Aubrey James is a fictional character appearing in American comic books published by DC Comics.

Aubrey James was the mayor of Gotham City and a friend of Thomas Wayne. He was later stabbed to death as mentioned in The Madmen of Gotham.

Aubrey James in other media

Aubrey James appears in Gotham, portrayed by Richard Kind.

Java

Java is a fictional character appearing in American comic books published by DC Comics.

Java is the Neanderthal servant of Simon Stagg. He was first discovered by fortune hunter Rex Mason and revived by the scientific wizardry of Stagg Enterprises. Java was present the day that Mason discovered the Orb of Ra inside the pyramid of Ahk-Ton in Egypt. The Orb was responsible for transforming Rex Mason into the metamorphae known as Metamorpho the Element Man after Java knocked out Rex Mason in the presence of it.

For years, Java lusted after Simon's daughter Sapphire Stagg, but was unable to win her heart because she was in love with Metamorpho. This bred a bitter rivalry between the two; one that persisted for many years. Java even risked his life once to save Sapphire from a melting skyscraper, and was transformed into a petrified fossil for his actions. Stagg's scientific prowess saved his life and returned him to normal.

During a time when Metamorpho was believed to be dead, Sapphire relented to Java's persistent advances and married him. Java became the father figure to Sapphire and Rex's mutant son, Joey. Java was not an inherently evil individual, but his moral base had been compromised due to his constant exposure to the unscrupulous Simon Stagg. He was also extremely selfish when it came to his wants and desires. When Rex abducted Joey from Stagg Mansion, Java flew into a rage and was determined to kill him. Even Simon's command over him could not quell Java's emotions. Frustrated by the Neanderthal's rare act of defiance, Simon Stagg shot him in the head, seemingly killing him.

Java did not remain dead for long however. The means behind his resurrection are unknown, but he was seen once again several years later attending the funeral of Metamorpho (who at the time was believed to be dead).

During the "Brightest Day" storyline, Java was with Simon Stagg at his Canadian estate at the time when Metamorpho persuaded him to help him and the Outsiders get back into the United States. Later that night, Java pays Metamorpho a visit while he was sleeping. For some reason, Java still had the Orb of Ra in his possession. Java uses the orb to knock Metamorpho around until Metamorpho becomes unconscious. Java then takes Metamorpho's body down to Simon Stagg's lab where he plans to merge him with Chemo. It doesn't go well as Java calls in Simon Stagg's servant Freight Train to help stop it. Freight Train manages to use an electrical wire which causes Chemo to vomit out Metamorpho. Simon Stagg later did an unidentified experiment that enabled Java to transform into a Shaggy Man which was defeated by Freight Train.

In 2011, "The New 52" rebooted the DC universe. Java's history with Simon Stagg and Rex Mason remains the same.

Java was present when Simon Stagg had opened a portal to the Dark Multiverse and is trying to close it with Metamorpho who was transmuted to Nth Metal. He is present when Mister Terrific, Plastic Man, Metamorpho, and Phantom Girl return from the Dark Multiverse.

Java was revealed to have been operating as the villain Doctor Dread and has formed a counterpart of the Terrifics called the Dreadfuls. They were defeated by the Terrifics.

Java in other media

• Java appears in the Justice League episode "Metamorphosis", voiced by Richard Moll.
• Java appears in The Flash episode "Fastest Man Alive", portrayed by Michasha Armstrong. This version is a contemporary African-American human and Stagg Enterprises' head of security who is killed by Multiplex.

Javelin

First appearance	Green Lantern (vol. 2) #173 (February 1984)
Created by	Len Wein Dave Gibbons
Abilities	Uses gimmicked javelins and other gadgetry
Aliases	Unknown

The Javelin is a fictional DC Comics supervillain.

The Javelin is a former German Olympic athlete who turned to a life of crime, using his uncanny abilities with a javelin-based weapons arsenal. The Javelin fought Green Lantern and was defeated before agreeing to serve with the Suicide Squad in exchange for the purging of his criminal record. His last Squad mission was a battle with Circe as part of the War of the Gods crossover event. It takes place in issue #58.

In the pages of Checkmate, the Javelin is recruited by the Mirror Master in an attempt to frame Amanda Waller. He teams up with several other villains, such as Plastique and the duo Punch and Jewelee. They invade a Myanmar military facility to neutralize what seems to be a superhuman power source. The Javelin is killed by a runaway jeep while trying to protect a distraught, newly widowed Jewelee.

Javelin in other media

• The Javelin makes non-speaking cameo appearances in Justice League Unlimited as a minor member of Gorilla Grodd's Secret Society.
• The Javelin makes a non-speaking cameo appearance in the Batman: The Brave and the Bold episode "Scorn of the Star Sapphire!".
• A character loosely inspired by the Javelin named Malcolm Byrd appears in the Arrow episode "The Demon", portrayed by Yanik Ethier. This version is a French arms dealer associated with the Ninth Circle.
• Gunter Braun / Javelin appears in The Suicide Squad, portrayed by Flula Borg. He is recruited into the eponymous group for a mission to Corto Maltese, but is fatally wounded by the local military and bequeaths his namesake to teammate Harley Quinn.

Jefferson Jackson

Further reading Jefferson Jackson at the Grand Comics Database

Jefferson Jackson is a supporting character of Ronnie Raymond (a.k.a. Firestorm) who makes his debut in Firestorm (vol. 2) #1 (June 1982). Jackson is a former student of Bradley High School in Manhattan, New York. During his tenure at Bradley High, Jackson became a member of the school's championship basketball team, where he met Ronnie. The two became close friends, and Jackson frequently aided Ronnie during the numerous episodes wherein the latter would find himself embroiled in conflicts with school jerk Cliff Carmichael. Jackson dated a young woman named Stella, and the two frequently double-dated with Ronnie and his girlfriend, Doreen Day.

Jefferson Jackson in other media

Jefferson "Jax" Jackson appears in media set in the Arrowverse, portrayed by Franz Drameh.

• First appearing in the live-action TV series The Flash episode "The Fury of Firestorm", this version was a high school football player who was injured when S.T.A.R. Labs' particle accelerator exploded and was forced to become a mechanic instead. Following Ronnie Raymond's death and due to Martin Stein's F.I.R.E.S.T.O.R.M. matrix destabilizing, the Flash and his allies find and recruit Jax to save Stein and become the new Firestorm as all three were affected by the particle accelerator in a similar manner. Despite initial hesitancy, Jax joins forces with Stein and together they leave Central City to hone their powers.
• Jax appears in the animated web series Vixen.
• Jax appears in the live-action TV series Legends of Tomorrow. In the first season, he and Stein are recruited by Rip Hunter to join his Legends to defeat Vandal Savage. Despite Jax refusing and Stein bringing him against his will, the former grows to appreciate being part of a team. In the second and third seasons, Stein inadvertently changes the timeline and gives himself a daughter, who goes on to have a son named Ronnie. In light of this, Jax asks his teammate Ray Palmer for help in developing a formula to separate the F.I.R.E.S.T.O.R.M. matrix so the former can use Firestorm's power on his own and allow Stein to be with his family. During the "Crisis on Earth-X" crossover however, Stein is fatally injured while helping the Legends and Earth-1's heroes combat Nazis from Earth-X, but drinks Palmer's formula to save Jax from suffering his fate, sacrificing himself in the process. A distraught Jax leaves the Legends to heal from his grief, though a future version appears in the third-season finale to help them defeat Mallus.

Jinny Hex

First appearance	Batman Giant #4 (December 2018)
Created by	Brian Michael Bendis and Nick Derrington
Abilities	Uses guns and inherited some of her grandfather's divine powers
Aliases	Virginia Hex

Virginia "Jinny" Hex is a fictional DC Comics superheroine. She is the granddaughter of Jonah Hex and a member of Young Justice. She first appeared in Batman Giant #4 (December 2018).

Jinx

Main article: Jinx (DC Comics)

Johnny Thunder

Main article: Johnny Thunder

Joker

Main article: Joker (character)

M'yrnn J'onzz

M'yrnn J'onzz is the father of the twin brothers J'onn J'onzz/Martian Manhunter and Ma'alefa'ak. His first appearance was in Martian Manhunter (vol. 2) #3 (August 2001).

M'yrnn J'onzz in other media

M'yrnn J'onzz appears in Supergirl, portrayed by Carl Lumbly. This version is alive, but was captured by the White Martians and coerced into revealing the location of the Staff of Kolar, a psychic weapon believed to be a key to end a war. However, he is rescued by Supergirl, Martian Manhunter, and Miss Martian, and taken to live in National City on Earth. Subsequently, he develops a form of dementia, and ultimately sacrifices himself to stop Reign from terraforming Earth. In subsequent seasons, M'yrnn appears as a spirit and in flashbacks.

Rhea Jones

Rhea Jones is a fictional character appearing in American comic books published by DC Comics.

Rhea Jones was the daughter of an Air Force official. After tagging along with her father to a government base in the Arctic, an explosion involving a powerful radioactive electromagnet killed her father and granted her electromagnetic abilities. Rather than stick around and be dissected and experimented on by the army, she ran away and joined the circus. After a few years, Rhea was recruited by Arani Caulder to join her new Doom Patrol.

After being recruited by Arani Caulder, aka Celsius, Rhea was now one of three new recruits into the Doom Patrol, along with Scott Fischer and Wayne Hawkins aka Karma. Celsius gave her the codename Lodestone. Her demonstrated abilities allowed her to fly, give herself Earth reinforced superstrength, create limited force fields, and attract or repel metallic objects like bullets.

Following the Invasion! storyline, Rhea and Scott were struck by a disease created by the Dominators. Her powers went wild, and then she lapsed into a coma, but ultimately she lived while Scott died.

At the start of Grant Morrison's surrealistic run of the Doom Patrol, Rhea was put into a coma that would last until halfway into the series. While in the hospital, she was kidnapped by the butterfly collector known as Red Jack, who claimed to be God, Jack the Ripper, and many others. He sought to make Rhea his bride. The new Doom Patrol followed Jack into his house, which our world is a room in. As he battled the Doom Patrol, Rhea awoke from her coma and stabbed Jack in the back, then immediately became comatose again.

Brought back to the Doom Patrol's new mountainside headquarters, Niles Caulder, the Chief, did experiments on Rhea showing that her coma wasn't normal. She was instead going through a form of metamorphosis, and her human form is the chrysalis.

Rhea awoke from her coma in issue #36 during "The Orthodoxy/Geomancer War". It was revealed that she was The Pupa, a weapon sought by the aliens Orthodoxy and Geomancers. Rhea's original body shattered, and out emerged a magnetic butterfly, explaining why she was sought out by Red Jack. After awaking, her facial features disappeared and her eyes were now on her chest and back. Her ears had also become two twinkling lights. She no longer wears clothes and seems to think nothing of it.

Rhea was actually what some call a Lodestone, a being in tune with the Earth's electromagnetic waves, its nerve system. They are the Earth's expression in flesh. The Ultraquist Geomancers kidnapped Rhea, and Rebis in the process, before she was able to fully bond with the Earth.

After ending the conflict between the Orthodoxy and the Geomancers (with help from Rebis and Robotman), Rhea pointed out a bright star in the sky, and left to go visit it. Promising to visit, she has not been seen since. Her only subsequent appearance to date has a brief flashback to her early days with Arani Desai and Valentina Vostok when the two returned during Blackest Night.

Rhea Jones in other media

• Rhea Jones makes a cameo appearance in the Batman: The Brave and the Bold episode "The Last Patrol!" as part of a poster advertising a carnival's freak show.
• Rhea Jones / Lodestone appears in the Doom Patrol episode "Doom Patrol Patrol", portrayed by Lesa Wilson as a young woman and an uncredited actress as an old woman. This version was a member of a 1950s incarnation of the Doom Patrol before they were defeated by Mr. Nobody and disbanded. As most of the team were left mentally ill following the battle, Joshua Clay became their caretaker.

Tao Jones

Tao Jones is a fictional character appearing in American comic books published by DC Comics.

She was among the children that were experimented on by Doctor Love while they were still in their mother's womb where she developed forcefield abilities. She becomes a member of Helix where they fought Infinity, Inc. on occasion.

Tao Jones in other media

Tao Jones appears in the Stargirl episode "Frenemies – Chapter Eight: Infinity Inc. Part Two", portrayed by Andi Ju. This version is a patient at the Helix Institute for Youth Rehabilitation partnered with Kritter.

Jumpa

Jumpa is a fictional character appearing in American comic books published by DC Comics.

On Earth-Two, Jumpa is a Kanga who was Wonder Woman's favorite Kanga and serves as her mode of transportation on Themyscira.

In 2016, DC Comics implemented another relaunch of its books called "DC Rebirth" which restored its continuity to a form much as it was prior to "The New 52". During the "Infinity War" storyline, a flashback to Wonder Woman's childhood had Wonder Woman working to train Jumpa while riding through Themyscira. Jumpa threw Diana into the ocean where the Megalodons that protect the ocean nearly attacked her. Hippolyta saved Diana and advised her to train Jumpa better.

Jumpa in other media

• Jumpa appears in the Teen Titans Go! episode "Justice League's Next Top Talent Idol Star: Justice League Edition".
• Jumpa appears in the DC Super Hero Girls episode "#GoneToTheDogs" Pt. 2.

Judge

The Judge is an alias used by different fictional characters appearing in American comic books published by DC Comics. Each iteration is usually depicted as a cloaked figure sporting a courtroom robe and a blindfold or sunglasses as well as wielding a mallet-sized gavel while opposing superheroes, such as Batman and the Flash.

First version

The first version, Judge Clay, was created by Archie Goodwin and Howard Chaykin, and first appeared in Detective Comics #441 (July 1974). A corrupt judge in Gotham City who has a scar on his right hand, he had dealings with the criminal Snow who accidentally blinded his daughter Melissa Clay. The Judge blamed Batman for his problems, kidnapping the original Robin as bait in using various trap-based weapons in an abandoned summer resort (despite Melissa's protests). The Judge was defeated by the Dynamic Duo and turned himself in when his weapons accidentally killed his own daughter.

Jacob de Witt

Jacob de Witt was created by Sam Humphries and Bernard Chang, and first appeared in Nightwing (vol. 4) #35 (February 2018). He was originally a judge from the 17th century that was tied up and drowned which made him into a blind immortal with the ability to see corruption in people's hearts. In the present, the Judge is a serial killer with a beard and a white suit who uses a casino chip calling card in Blüdhaven while having several confrontations with Dick Grayson before being defeated by Nightwing and held in a secret prison.

Hunter Zolomon

Main article: Hunter Zolomon

Hunter Zolomon is known as the Judge in the 25th Century Central City while opposing Barry Allen and Wally West.

Judge in other media

An original incarnation of the Judge appears in The New Batman Adventures episode "Judgment Day", voiced by Malachi Throne. This version is an alternate personality of Harvey Dent / Two-Face who operates as a violent court-themed vigilante in Gotham City. The Judge uses extreme measures to apprehend the Penguin, Killer Croc, the Riddler, and Two-Face before being defeated by Batman.