The dreams of the mad, the psychotic and the criminally deranged. Nightwalkers need to be kept out of the way of everybody else (dreaming).

Group of monsters living in the Homelands.

A task forced founded by President John Fitzgerald Kennedy after the debut of the Atom.

Best known as legendary heroes from Krypton and the "Batman and Robin of the bottled city of Kandor". Most seen in the Silver age, the mantles of the Nightwing and Flamebird duo has been used by several individuals throughout history.

Bludhaven police officers taking the law into their own hands in Nightwings absence.

The Nihilistic Order wanted to destroy Captain America.

God-King Arisen Tyrk's being was split into many fragments three of which landed on Tunnelworld joined forces with Ytitnedion and rode upon the Nilffim which were giant birds.

Team from earth-41, they protect their people and their planet from threats that are almost as varied as they are.

Nine little piglets that are pets of the Wizard of Oz and used in his magic tricks.

Ninth Circle is an international criminal organization and bank. The group was founded by Green Arrow's ancestor, Robin Queen.

Nite Owl and Rorschach were a crime-fighting detective duo in New York City, until the Keene Act and Rorschach's mounting instability ended their partnership.

A group of villains with rejected super powers, banded together for survival.

Water spirits from Germanic and Scandinavian folklore.

Non Lethal Alternative Studies is a research facility funded by the Secretary of Military Preparedness.

The N-Men were formed out of the mercenary group Technet after Gatecrasher was defeated.

A down-on-their-luck crime family that was transformed by the Terrigen Mists.

The Nocturnals are a horror/superhero group created by Dan Brereton.

Immortal creatures who live under the earth's surface, where they guard the precious metals and jewel stones that lie buried in rock and ore. They are ruled by the Nome King.

The spirits of all the men and women who ever took up the role of ShadowHawk are all brought together to reincarnate the Chosen One.

Faceless ghosts from Japanese mythology.

A group within the Pantheon comprising Urdr, Verdandi and Skuld.

The Norns, Urd, Skuld and Verdandi are the foretellers of the future in norse mythology.

The fascist political party that runs England under the control of Adam Susan

A combined organization of the United States and Canada providing aerospace protection.

The North Atlantic Treaty Organization or NATO is an European intergovernmental military alliance.

The North Force are an Canadian superhero team.

A demon crew formerly led by Etrigan.

The Nosferati, or Nosferatu Sect are a group of vampires.

Shelled alien species on planet Peridea.

An intergalactic peacekeeping force.

Liberal Magazine that is critical of costumed heroes.

Russian paramilitary organization which fights with capitalism.

A shadowy organization which has a mysterious interest in young super heroes, and has a wide array of unpredictable plans, and are responsible for creating Superboy. They are also enemies of the Teen Titans.

"To gain a world energy monopoly by eradicating any effective private or governmental competition." The Nth Command pursued that purpose through the creation and use of Nth Projectors.

A group of Robots that are programmed to look and act like Dr. Shanner's family. They are the enemies of the Outsiders. The Nuclear Family was destroyed in an explosion.

The main enforcers of The King of Las Vegas

The Nuclear Legion were a group of nuclear-powered supervillains who were formed by The Society to be their agents in Blüdhaven during the Battle for Blüdhaven.

Post atomic syntetic humans from Earth-AD