A team of Metahumans inmates of the prison known as The Enclave.

A shadow organization responsible for the events at Ravencroft Asylum

The Japan Self-Defense Forces are the unified military forces of Japan that were established after the end of the post–World War II Allied occupation of Japan.

Jean Grey School For Higher Learning was created by Wolverine in the aftermath of the X-Men's Schism. He named it after the first female X-Man and long lost love, Jean Grey. The academy is also known as "Grey's School for Gifted Youngsters".

The ancient Jedi serve as the keepers of order and peace in the galaxy, as well as sworn guardians of the Republic.

These Jedi Knights were charged with guarding the Jedi Temple on Coruscant. After Order 66 most of the guards were killed. One of the few that survived joined the Emperor and became the Grand Inquisitor.

A band of assassins, consisting of several groups of people with jelly-based powers.

Gang of Vampires.

The team features in the Hellgate London comics, and are the last hope for mankind!

An army of clones created in Vatican City

A futuristic family that lived in Orbit City in an apartment complex that was in the sky.

Undead from chinese folklore

The Jihad is a team of super-powered terrorists that call their home in the nation of Quarac.

A group of kids that admire Jimmy Olsen in the Pre-Crisis universe.

Elemental spirits from Mesopotamian and Islamic mythology.

Native South American tribe

The JLAxis is a Nazi version of the Justice League of America from Earth-10

Justice League Queer

JLX are a team of metamutants in the Amalgam universe that defected from the Judgment League: Avengers after they unjustly tried Aquamariner for crimes against humanity. JLX is short for "Justice League of X-Men".

The Johnny Apollo Gang is just a couple of kids with dreams of being big wigs in a new mob.

Joker's answer to Batman Incorporated. He recruited followers from different parts of the world.

Joker Squad was the nickname of the Company C, Battalion 9 of the 407th Division. It served both the Fel Empire and the Sith Empire in the Legacy Era

Followers of the Clown Prince of Crime

Middle class family from Coast City related to earth's Green Lantern Hal Jordan.

An awesome girlband from Riverdale. Although they appear to be more popular than The Archies, a fact which the Pussycats themselves dispute, they often appear on the same bill.

Natives of Jupiter

The JSA (Justice Society of America) All Stars is the group that was formed after the breakup of the JSA. The team is led by Power Girl and Magog.

A team led by Doc Justice in Los Angeles.

A team of future Titans who defected and joined Lord Chaos instead.

The Judgment League Avengers are the premiere superhero team in the Amalgam Universe. They are a combination of the Justice League of America and the Avengers.

The Finnish Gods, also known as the Kalevalans.

Young boys who teamed for beaten and capturing the Wizard, the last member of Injustice Society of the World when they tried to conquer all USA.

A New York street gang.

Five mutated dinosaurs that fight against forces of evil to defend the humanity.

The Juris is a counsel of six spirits who act as defense, prosecution, judge, jury, and execution of those who hold on to heavy secrets in their lives.

Residents of Earth-C-Minus, the Just'a Lotta Animals protect their universe with the power of horrible puns, each one being a zoomorphic copy of the Justice League.

Premier Superteam of earth-36.