Villain team from the 90's, the Rising Sons were Madripoor-based and clashed with Generation X

The River Rats are a group of pirates out of Hell's Kitchen in New York City. The River Rats primarily rob rich people on yachts.

Robot bear species from the Third Earth.

Victims of the Jokers crimes in an alternate universe. When Bruce Wayne became The Batman Who Laughs he turned these kids into his pets. They are now more feral animals than human beings.

Bloodthirsty robot savages who planned to use Jean Grey School for Higher Learning to power their invasion of Earth.

Alkhema's robotic army modelled after Avengers.

Robotic civiliztion in the 31st century.

They are special kind of robots/androids that possess very advance level of artificial intelligence as most of them posses unique a special weapon. They were created by Doctor Light, but later Doctor Wily corrupts nearly all against Mega Man.

Team of robots seeking supremacy over humans.

A mechanical construct capable of performing tasks by itself.

An evil group of robots created by Robot Doc Magnus.

Super powered suits that Dire Wraiths Created

The Rocket Reds are the Russian government's response to the growing number of superheroes. All members wear super strong armour, which is equipped with a solar powered propulsion system. It also contains super heated plasma blasters, automatic defenses, electrified nets and magnetic boots.

Enemy of the teen titans

Rock, Paper and Scissors are three members of the H.I.V.E. academy who attempted to kidnap Wildebeest from the mall, while he was in his child form; though they met up with him later on in the mall, the Titans showed up to aid him before they were able to take him.

These evil beasts are powerful and brutish enemies of the Asgardians. Their strength and size has been a huge asset to their species against their enemies.

The Rockville Riot Grrrls! are a group of roller derby girls. Members of the group are also witches.

A race of aliens from the planet Rodian in the Star Wars universe.

A super strong and super ferocious race of monster which serve as one of the few threats to the Viltrumite (or any) species.

The Rogues are a tight-knit group of blue collar criminals operating in Central and Keystone Cities, home of the Flash.

Elite squadron formed by the rebel X-Wing pilots who survived the destruction of the first Death Star. They have been led by Luke Skywalker, Wedge Antilles, Tycho Celchu and Gavin Darklighter.

A type of yokai with extremely long necks. A Nukekubi is a variant with detachable heads.

The Roman Deities were worshiped by the ancient Romans and it was created almost 1000 years after the fall of the Greek Pantheon, but the Romans adopted the ideas of Greek mythology and transformed those ideas as their own.

A stateless ethnic group often associated with Europe. They are colloquially known as Gypsies among several names in different languages. Often racially depicted as criminals, thieves, or magic users in comics.

The Mighty Roman Republic and Empire including it's citizens and soldiers.

Voodoo rap gang of Jim Crow.

R'ora are sentient aliens on planet Luprora.

On occasion the heroes of the old west in the 19th century would band together, as the Rough Bunch.

A group of masked vigilantes who use extreme methods to deal with crime in Gotham City

A band of historic figures brought together by Theodore Roosevelt to fight against invading forces in Cuba.

Also known as RTA featuring heros from bing bang comics (Earth A) formed by a request of President Kennedy. Based on the "Justice League" by DC Comics.

A big petroleum corporation headed by Dario Agger. They make profits with unethical methods and are often involved in criminal activity.

Otherwise known as the RAF. This is the air force of the United Kingdom.

a group of automotive mechanics in the Burnside neighborhood of Gotham

The national, and occasionally provincial and municipal, police force of Canada.

The Royal Family from the Land of Ev.

Ruling family of the planet Tamaran.

Superpowered Monarchy of Earth-48, an parallel universe also called War World. Traumatize by The Anti Monitor's Crisis on Infinite Earth, the Royal Family have interest in the affairs of the multiverse in order to protect their Earth from another crisis.

The Royal Flush Gang is a group of card-themed supervillains in the DC Universe.

Police force manufactured by Queen Industries.