Originally a former Italian Facist group, it quietly grew over decades under the command of the technocrat and mastermind, Lord Recluse.

The Arashikage Clan is a group of Ninjas from the G.I. Joe Universe. This clan produced Ninjas such Storm Shadow and Snake-Eyes, among several others.

Arc-7 is a British covet ops Intelligence Agency formed during the Second World War.

A secret society that predates even the Freemasons. They have been manipulating America History from its inception.

A group who are organized like a deck of playing cards: Diamonds are in charge of finance, Clubs in politics, the Hearts manipulate emotions, and the Spades use violence when.

Arc Angles are described as "conscious hypergeometries", godlike beings which transcends space-time which seeks to destroy the concept of time itself in order to keep existence stagnant.

The Wanderers were the first civilization to be destroyed by Galactus. They have spent ages searching for their revenge on the devourer.

Archie and friends become superheroes and battle bizarre supervillains in a series of adventures.

The Arctic Blue are a population of Blue that live in the freezing cold water of the north. They have the ability to control ice like the Blue control water.

ARC Troopers are Clone Troopers who were personally trained by Jango Fett. They all have developed unique personalities and are among the most elite soldiers the clone army.

A humanoid alien race from the planet Arcturus IV. The Arcturans are divided between Mutants and Reavers.

A division of Task Force X.

An alien race from the 30th century.

A.R.G.U.S. is an off shot of Homeland Security that deals primarily with superhuman threats. A.R.G.U.S. was originally founded by Steve Trevor after Darkseid Invasion.

The Ariguan Confederacy is a reptilian race of conquerors and enslavers

Peaceful alien race. They were encountered by the Starjammers.

At some point several million years ago Arishem the Judge formed a Coup D'etat that planned to harvest the true power of Earth as part of their plan to overthrow One Above All and conquer the universe. It was the Coup who framed the Dreaming Celestial and had him imprisoned.

The inmates of Arkham are deemed too insane and dangerous for regular prisons. Although usually at each other's throats, the inmates will occasionally band together to take on their greatest foe - Batman.

The Arkham Staff are the medical and security staff that work at Arkham, to help the inmates and keep them secure and safe.

A group of reformed villains, led by Arkham Knight, against the Magistrate.

Protection Racket

Alternate Reality Monitoring and Operational Response

The Armorines are a team of soldiers from the U.S.M.C. equipped with highly advanced prototypes of power armors based on alien technology.

Genetically enhanced soldier ants.

A group of trained assassins created by Baron Heinrich Zemo assigned to defeat Captain America.

An army of robotic brides created by Ultron.

The several past lives of Hawkman, reunited in the present to fight an ancient menace.

Army of Insects created by Alistair Smythe.

Army of four hundred girls led by General Jinjur.

The army of demons, the Damned, and many other inhabitants of Hell that was gathered by Christopher Rudd with a single goal in mind...to take their fight to Heaven.

Team of B-List villains gathered by General Immortus.

Neo-tribalist prosthetic fetishists who will take any kind of dirty job to keep themselves in juice and spare parts, but they cost big.

A Nazi super-villain team that believes in the ideals of the Third Reich. They have faced many different incarnations of the Justice League and the Freedom Fighters over their history.

A growing cyber-terrorist organization.

The deities of Norse mythology.