
The Acanti are a race of fictional whale-like, extraterrestrial beings appearing in American comic books published by Marvel Comics. They have appeared in Uncanny X-Men within the Marvel Comics universe. They were created by writer Chris Claremont and artist Dave Cockrum. Many of them were enslaved by the Brood empire.

Bamf, originally Bampf, is an onomatopoeic term originating in comic books published by Marvel Comics, in particular those featuring the superhero Nightcrawler of the X-Men. The term is derived from the sound Nightcrawler makes when teleporting.

Black Cat is a fictional character appearing in American comic books published by Marvel Comics. Throughout her history, Black Cat has sometimes been an enemy, love interest, and ally of the superhero Spider-Man. Created by writer Marv Wolfman and artist Dave Cockrum, she first appeared in The Amazing Spider-Man #194.

The Brood are a fictional race of insectoid, parasitic, extraterrestrial beings appearing in American comic books published by Marvel Comics, especially Uncanny X-Men. Created by writer Chris Claremont and artist Dave Cockrum, they first appeared in Uncanny X-Men #155.

Caliban is a fictional character appearing in American comic books published by Marvel Comics. He first appeared in The Uncanny X-Men #148, by writer Chris Claremont and artist Dave Cockrum. A Mutant with the ability to sense other mutants, he was originally a member of the Morlocks. He was also a member of the X-Factor, X-Men, X-Force and The 198. He was chosen twice by Apocalypse as one of the Horsemen of Apocalypse, first as Death and the second time as Pestilence, and Apocalypse also enhanced his superpowers through genetic manipulation.

Black Tom Cassidy is a fictional supervillain appearing in American comic books published by Marvel Comics. The character is usually depicted as an enemy of the X-Men, and of his cousin, Banshee. In addition to fighting the X-Men, he has clashed with Deadpool a number of times.

Ch'od is a fictional character appearing in American comic books published by Marvel Comics. The character is usually seen in the X-Men series and various spin-offs.

Colossus is a fictional superhero appearing in American comic books published by Marvel Comics. Created by writer Len Wein and artist Dave Cockrum, he first appeared in Giant-Size X-Men #1.

Corsair is a fictional character appearing in American comic books published by Marvel Comics. The character is depicted as a star-faring hero who leads the Starjammers, and the father of X-Men superheroes Cyclops and Havok and the supervillain Vulcan. He first appeared in X-Men #104, and was created by Dave Cockrum.

Deathbird is a fictional character appearing in American comic books published by Marvel Comics. She is a supervillain, an adversary of the X-Men.

Gladiator is a fictional character appearing in American comic books published by Marvel Comics. He first appeared in X-Men #107 and was created by writer Chris Claremont and artist Dave Cockrum. Gladiator, whose given name is Kallark, is a Strontian, and like others of his race has the capacity for great strength and various superpowers, but can only use them when he is completely devoted to a purpose; his abilities increase and decrease in accordance with his level of confidence. He was born on Strontia, which is part of the Shi'ar Empire and he is the leader of their Imperial Guard. He was also a member of the Annihilators, Dark Guardians, and Guardians of the Galaxy.

Hepzibah is a fictional character appearing in American comic books published by Marvel Comics. She first appeared in X-Men #107 and was created by Dave Cockrum and Chris Claremont. She is a member of the intergalactic enforcers known as the Starjammers and currently a member of the Uncanny X-Men. The name of her species, Mephitisoid, is derived from the word Mephitidae, the scientific classification for skunks, which her species noticeably resembles.

The Imperial Guard is a fictional superhero team appearing in American comic books published by Marvel Comics. The Imperial Guard are a multi-ethnic group of alien beings who act as enforcers of the laws of the Shi'ar Empire; the Superguardians are the personal guard of the leader of the Empire.

Raza Longknife is a fictional character appearing in American comic books published by Marvel Comics. The character is usually seen in the X-Men series and various spin-offs. He is the last known surviving member of his unnamed alien race, and a member of the Starjammers.

Dr. Moira MacTaggert née Kinross, more recently known as Moira X, is a fictional character appearing in American comic books published by Marvel Comics. She first appeared in Uncanny X-Men #96 and was created by writer Chris Claremont and artist Dave Cockrum. She works as a geneticist and is an expert in mutant affairs. She is most commonly in association with the X-Men and has been a member of the Muir Island X-Men team and Excalibur.

Magik is a fictional superheroine appearing in American comic books published by Marvel Comics. The character is depicted most often in relation to the X-Men, and first appeared in the comic book Giant-Size X-Men #1.

Manphibian is a fictional character appearing in American comic books published by Marvel Comics. It has some resemblance to the "Gill Man" seen in Creature from the Black Lagoon.

Mystique is a fictional character appearing in American comic books published by Marvel Comics, commonly in association with the X-Men. Created by artist David Cockrum and writer Chris Claremont, she first appeared in the comic book Ms. Marvel #16.

Lilandra Neramani is a fictional character appearing in American comic books published by Marvel Comics, most commonly in association with the X-Men. She is the Empress, or Majestrix, of the Shi'ar Empire and shares a lifelong bond with the leader of the X-Men, Charles Xavier. She and Xavier were married, but their marriage was annulled after the Cassandra Nova incident.

Nightcrawler is a fictional superhero appearing in American comic books published by Marvel Comics, commonly in association with the X-Men. Created by writer Len Wein and artist Dave Cockrum, he debuted in the comic book Giant-Size X-Men #1.

Phoenix Force is a fictional entity appearing in American comic books published by Marvel Comics. The entity has bonded with other characters, and often used the alias Phoenix while bonded.

Mikhail Nikolaievitch Rasputin is a fictional supervillain appearing in American comic books published by Marvel Comics. The character is the older brother of Colossus of the X-Men and Magik of the New Mutants. He first appeared in Uncanny X-Men #284.

Amanda Sefton is a fictional character, a witch appearing in American comic books published by Marvel Comics. She is the foster sister and lover of Kurt Wagner, Nightcrawler of the X-Men.

Smasher is the name of multiple different fictional characters appearing in American comic books published by Marvel Comics.

Storm is a fictional superhero appearing in American comic books published by Marvel Comics. The character was created by writer Len Wein and artist Dave Cockrum, first appearing in Giant-Size X-Men #1. Descended from a long line of African witch-priestesses, Storm is a member of a fictional subspecies of humans born with superhuman abilities known as mutants. She is able to control the weather and atmosphere and is considered to be one of the most powerful mutants on the planet.

Thunderbird is a fictional superhero appearing in American comic books published by Marvel Comics. Created by writer Len Wein and artist Dave Cockrum, the character first appears in Giant-Size X-Men #1. Thunderbird was a short-lived member of the Second Genesis group of X-Men gathered together in this issue, as he died on their second mission.