The Circus of Crime is a traveling band of circus performers who use their abilities to rob their audience.

Maggot-like creatures that need human hosts to turn into Sheeda spine-riders

A cult of death worshippers, wearing animal masks, operating out of New Orleans.

It is a fascist empire in the Vega system, ruled by Lord Damyn.

Inhabitants of Citadel Homeworld and members of Citadel Empire.

Government sponsored team that fakes their battles.

Group of talking apes Jack meets in the Homelands.

The Clan are all descendants of Apocalypse. The Clan have served Apocalypse throughout the centuries.

The Askani were formed by Rachel Summers when she arrived in the future with the aim of overthrowing Apocalypse.

Led by Cable in the fight against the New Canaanites, Stryfe, and the lingering armies of Apocalypse, the Clan Chosen was founded after the battle at the Askani sanctuary Ebonshire.

ClanDestine are the children of an invulnerable immortal knight Adam Destine and a female genie.

Clan Rebellion was a group in the Askani timeline that wanted to end the rule of Apocalypse. They formed after the destruction of the Askani. Time-lost Jean Grey and Cyclops were members.

A group that admires Clark Kent in the Pre-Crisis universe.

Consortium for Law-Enforcement Action for the Security of Humanity.

Mighty Mouse's greatest enemies. They are really only a bunch of cats!

The Claw Sect are a group of vampires and one of the strongest sects.

The Clay Soldiers are enemies of the Agents of Atlas. They are small clay soldiers created by Yellow Claw and given life as life-size soldiers to follow his orders.

White blood cell like creatures that attack the Green Lanterns when they are stranded in a new universe

Cleveland Indians is a major league baseball team with notable player Bob Feller.

A social media company that provides sponsorship to X-Factor and is a pastiche of TikTok

Team of female robots created by Professor Rumpus.

A team of two misunderstood runaways who first became friends and, later, heroes.

Led by Clock King, Clockwatchers is a short-lived super-villain team that battled the Teen Titans.

Precursor to the Snow Stormtroopers

Clones specially trained to pilot starfighters such as V-Wings, ARC Fighters, and Republic Gunships.

An army of clones created from the DNA of Jango Fett. Some have formed individual personalities, but all are ultimately obedient to Emperor Palpatine. They were known as "The Grand Army of the Republic" and served both the Old Republic and Empire.

Enfys Nest's pirate gang.

Arch-enemies of Vulcan

The Coalition of Planets is an alliance between several alien races in the Invincible universe. The Coalition was formed to find a way to stop the Viltrumites.

A clandestine military organization charge with eliminating the worst threats imaginable.

Cobra is the nemesis of the G.I. Joe team. Along with battling G.I. Joe, the members of Cobra are dealing with numerous internal power struggles.

Cobra-La is an ancient civilization that ruled Earth with organic technology, but exiled themselves to the Himalayas.

Vipers constitute the main fighting force of the global terrorist organization known as Cobra, trained in advanced weapons and tactics. Vipers are entry level and soldiers can move on to other groups such as Alley Vipers.