These profiles represent (for the most part) individuals. Certain collective beings may be found here as well. Heroes and Villains, Cosmic entities, and civilians are the major examples.

I the Great (Dynamo City)

Iago of Ultraverse (Argus' lackey, Godwheel character) - by Markus Raymond

Ian Og (Clansman, 1692)

Iann-23 (Huntarr)

Iba-Taub (king of Idnshar, Bob Brant and the Trouble-Shooters character)

Ibbar (Zephyrland, the Four)

Ibis (Thoth)

Ibis the Invincible (Thoth)

Iblis (Hellstorm's Demon-Steed, demon) - by Proto-Man

Icara (Visionaries, Prysmos, Spectral Knights ally) - by Grendel Prime

Icch (Microverse, B'zzk race, Planetary Council)

Ice ("Committee of Five")

Ice of Earth-80324 (Paradox character)

Ice (Drug Lords)

Ice (Hydrators)

Iceberg of Earth-9602 (Amalgam character) - by Skullogeist

Iceberg of Earth-92131 (Spider-Man '94 cartoon; mobster, Prowler foe) - by Minor Irritant

"Iceberg Alien" (visitor from the stars, Journey into Mystery) - by Ron Fredricks

Icebox Bob (Ice Box Bob)

Ice Box Bob (Johnny Blaze foe) - by Markus Raymond

Ice Boy (Marvel Italia, Task Force member) - by Wolfhead & Loki with translation aid from Angelo Mammone

Ice hydra (Microverse)

Ice King (Namor foe) - by AvatarWarlord72

Icemaker of Eurth (Iceman counterpart) - by Proto-Man

Iceman (Robert Drake)

Iceman (Ice Phillips)

Icemaster (Hostess ad and Thunderbolts foe) - by Omar Karindu

Ice-Monster (pre-FF monster) - by Madison Carter

Ice Phillips (Nam, Punisher character) - by Per Degaton

Ice Princess (Inuit, cold-projecting Femizons member) - by Norvo

Ice Queen (Human Torch/Thing foe)

Ice Queen (Lorelei, Asgardian)

Ice Queen of the Hyborian era (Vassilisa)

"Ice Queen" (Marcy Kane/Kaina)

Ice Worm (Conan foe) - by Spidermay

Iceworm (Jack Frost foe) - by Prime Eternal

Ickes, Sec. Harold L. (real life WWII-era Secretary of the Interior) - by Proto-Man

Icon (A'Kurru U'mbaya, Wakandan Black Panther/Excalibur/Captain America/Iron Man foe) - by Proto-Man

Iconoclast (Fantastic Four foe) - by Zerostar

Ictus the She-Wolf (Lunatik (cosmic merc) character) - by Markus Raymond

Id (son of Tantalus) - by Prime Eternal

Id the Selfish Moon (Deadpool foe)

Idaho Smith (Old West, Annie Oakley romantic interest) - by Grendel Prime

Idealus the Fictional Man (18th Kree Diplomatic Gestalt foe) - by Markus Raymond

Identity Girl of Earth-The Identity Crisis Happened in the Marvel Universe

Idiot (Iceman foe)

(Idiot) Punisher (Punisher character)

Idol of Eurth (Wonder Man counterpart) - by Proto-Man

"Idol and hero of every American boy in the land" (1950s, Chuck Blayne)

"Idol of Millions" (1950s, Chuck Blayne)

Idol of Tibo (Karl King foe)

Idris (Sister Perpetua, X-Man character)

Idunn (Asgardian goddess) - by Will U and Prime Eternal

Ieyasu, Tokugawa (16th to 17th century ruler of Japan, Albert Destine ally) - by MarvellousLuke

Igan (patient/henchman of Dr. Grimm)

Iggle, Marvin (Slap Happy, All-Hate Squad)

Iggo (New Mexico Outcasts)

Ignatius, Paul (real former Undersecretary to the US Army, Avengers character) - by Proto-Man

Ignatius Rex (Green Thing foe)

Ignatz Mouse of Odhams Earth (attended Special Squad Christmas party)

Igoe, Max (Daily Bugle, Spider-Man character) - by Grendel Prime

Igor ?? (Igor Drenkov, Hulk foe) - by Stunner

Igor (cat, encountered Zagan)

Igor (Children, Baroness von Frankenstein ally)

Igron (Thor foe)

Igron the Invincible (Thor foe)

Iguana (Spider-Man foe)

Igwanus of Earth-829 (Hercules 2300 @ 2385)

Ika (Crystar character) - by David Lawrence

Ikari (Daredevil foe) - by Chadman

Ikarys (Inhuman) - by Markus Raymond

Ike ?? (Power Man foe)

Ikeda, Isaac (Protector)

Ikelli (Inhuman of Utolan, Flint's sister) - by Chadman

Ikonn (Dr. Strange foe) - by Spidermay

Ikor the Watcher (father of Uatu)

Ikthalon (demon, Son of Satan foe)

Iktomi (Marvel UK, Ghost Dancer foe)

Ilga (Conan character)

Ill Billy (Fight Man/Agent X foe)

Illa the Girl-Moon (Ego's daughter, Moon Girl & Devil Dinosaur character)

Illa the Living Moon (Illa the Girl-Moon)

Illes, Eric (encountered vampire Hans)

Illumination (Hand, Punisher foe) - by Markus Raymond

Illuminator (Andy Prentiss, teenage hero) - by Madison Carter

Illusio of Eurth (Mastermind counterpart) - by Proto-Man

Illustrious First One of Venus (The Mekon)

"Ill Wind" (Dennis Foley)

Ill Wind of Eurth (Whirlwind counterpart) - by Proto-Man

Illyich, Vassily (Savage Land Mutates foe)

Illyrie (Microverse, Acroyear ally) - by Grendel Prime

Ilsa ?? (Daredevil character)

Il Sung, Kim (Scrambler)

Ilves, Dr.Reigert (They, created Lynx)

IM2 of Earth-97082 (ca. 2015, intelligent Iron Man robot)

Imacolata of Guildern (Dark Angel/Wild Thing foe)

Imbalayo (Conan foe) - by Spidermay

Imdugud (Pazuzu)

I.M. Histeree (Vanisher)

Imhotep (Ravager of Worlds)

Immortalis (Marvel UK)

Immortal One of Earth-5309 (ca. 31st century, Guardians of the Galaxy) - by MarvellousLuke

Immortus (Avengers character, Kang counterpart)

Immortus of Earth-9997 (Earth X character) - by Stunner & Loki

Immortus, Marcus (Ms. Marvel related)

Immortus, Marcus (Revelation's son)

Immundra (Shi'ar Superguardians) - by Grendel Prime

Imogen (Century foe) - by Markus Raymond

Imo Miri ("Zola Force")

Imonker, Paul M. (Uncinus)

I.M. Owdaheere (Vanisher)

Imp (tiny Golden Age fantasy character) - by Prime Eternal

"Imp" (Harriet Homerstone)

Imp (Anders Nobel, X-Student) - by MarvellousLuke

Impact of New Universe (Forsaken)

Impact (Ryu)

Impact of Earth-982 (MC2, Wizard's Warriors)

Impact 739 (SHIELD robot) - by Prime Eternal

Impala (Bad Girls INC, Superia's Femizons) - by Prime Eternal

"Imparter of Immortality" (Father Time)

Impasse (Power Man/Iron Fist foe)

Imperator Addelaus (Bardisattva follower, Conan foe)

Impercepto (Hostess ad, Mr. Fantastic foe) - by John Kaminski

Imperial Army Test Subject 73-E (Charcoal)

Imperial Centurius (Centurius)

Imperial Gamesman (Micronauts foe)

Imperiatrix (Great Mother, Brood queen)

Impossible Dawg of Earth-9602 (Amalgam character)

Impossible Man of Earth-The Identity Crisis Happened in the Marvel Universe

"Impossible Spaceship" (1960s, Strange Tales alien) - by Ron Fredricks

Impulse (Shi'ar Imperial Guard) - by Chadman

Imset (Horusians)

Imstari, B'ket (Shi'ar, Gul Damar Space Station, X-Men character)

Imura, Ieyasu (Spider-Woman (Drew) character) - by Norvo

Imus Champion (Avengers foe)

Imus the Champion of Warp World (X-Brotherhood foe, Imus Champion/Champion of the Universe fusion)

Inanna (Mesopotamian Goddess/demon, Hellstorm foe)

Inari (Japanese god) - by Will U & Prime Eternal

Incandescent Man (Spider-Man/Cannonball foe) - by Proto-Man

Incánus (Gandalf)

Incarsicus (Thunderbolts foe)

Incinerator (Power Man/Iron Fist foe) - by Spidermay

"Incinerator" Jones of Earth-5555 (Jones Boys)

Incitatus, Legate Caius Estulitius (Roman, Bran Mak Morn foe)

Incoming of Ultraverse (Solution foe) - by Grendel Prime

Incredible Hack of Earth-9047 (super-strong taxi driver) - by MarvellousLuke & Proto-Man

Incredible Hog of Earth-7840 (humanoid animals)

Incredible Hulk (not that one!) - by Zerostar

Incredible Hulk of Earth-97416 (Hulk, Timeslip)

Incredible Kvetch (Crazy Magazine character) - by Loki

Incredible Wino (Crazy Magazine character) - by Loki

Indech (Fomor)

Indenbaum, Dr. Pons (Project: PEGASUS)

Indestructible (Thor villain) - by Prime Eternal

Indestructible Man (Damon Dran)

Indian Gomez (Old West, Concho Kid foe)

Indiana Drake of Reality-86018 (Howard the Duck, adventurer)

Indigo (ICON)

Indigo of New Universe - by Prime Eternal

Indigo, Odysseus (Deviant, Damocles Foundation CEO) - by Prime Eternal

Indra (Hindu God, impersonated Shiva at least once) - by Will U

Indra (X-Student) - by MarvellousLuke

Ines, Dr. Didier (Deathless Frenzy creator, Black Widow character)

Infamnia (Daredevil character) - by Markus Raymond

Infant Terrible (Fantastic Four character)

Infante, Victor (FBI agent, The Hood foe)

Infernal Man (fiery Ezekiel Stane agent, the Order foe)

Inferno (Ghost Rider foe)

Inferno (Avengers foe)

Inferno (Exemplars) - by the Beetle

Inferno (Dante Pertuz, Inhuman) - by Chadman

Infernock (Avengers foe) - by MarvellousLuke

"Infinite" (Kukulcan, Mayapan)

Infinitus (Human Torch/Iron Man foe) - by Fortmax & Caliban

Infinity (aspect of Odin) - by Don Campbell

Infinity (Eurth involvement only) - by Proto-Man

Infinity (Crazy Eight)

Infinity Thrall (Adam Warlock foe) - by caliban

Infomorph (System Crash)

Ing (Frey)

Ing, Sharon (Beyonder character)

Ingenuity Lee (House of Blue Lights)

Ingersol, Mr. (Daredevil character) - by Chadman

Ingot (Secret Empire's Brute Force)

Ingrediento (Marvex foe)

Ingu the Watcher (Captain Marvel I#39)

Inheritor from Beyond (Hulk foe, Cockroach Conspiracy)

"Inhibitor" of Earth-89149 (Annex Squad member)

Inhuman child (presented to Royal Family)

Inhuman Torch (synthezoid engine of destruction, Human Torch (Jim Hammond) foe) - by Kevin Garcia

Initiate (Hidden)

Injun Joe (mobster)

Inkose (Ashake foe)

Inmate #49420 (Melissa Morbeck/Iron Ring)

Inmate #671950 (Plantman)

Innards (D.O.A.)

Inndig-O (Accuser, Starforce Blue)

"Innocence" (Charcoal)

Innocent Mary (Typhoid Mary)

Inorganic Techno Troids (Skrull weapon) - by Proto-Man

Inoshiro Kondo (Iron Man foe)

Inoue, Kayama (Irezumi, Pacific Overlords)

Inoyawa, Karaguchi (Red Ronin character)

Inquisitor of Earth-81165 (Emmanuel Cody's world)

Inquisitor (Wolverine foe)

insect (Avengers foe)

Insect Crusher (Mantis Man foe, Spider-Man Magazine)

Insecticide (Humbug foe) - by Markus Raymond

Insect Man (Marvel Monster, subterranean insectoid scientist) - by Markus Raymond

insectoid (Imperial Guard member)

Insect Queen of Earth-9602 (Amalgam character) - by Proto-Man

Inshallah, Khalid (Dr. Strange character)

Insidio (Starblasters) - by Prime Eternal

Insomnia (Daredevil foe)

"Inspector" (Hodiah Twist ally) - by Jean-Marc Lofficier

Inspector Gorliet (Black Cat character)

Inspector Korngold (police inspector, Shroud character) - by Prime Eternal

Inspector Lestrade (Scotland Yard, Sherlock Holmes character)

Inspector Spectre (It's Wicked character, Marvel UK) - by Loki

Instant Replay (NFL SuperPro foe) - by Markus Raymond

Insurance of Ultraverse (Orange Lotus Cult)

Integer (Gene Nation)

Intelligence Supreme of Earth-7812

Intelligencia (Intelligentsia)

Intelligentsia (Captain Marvel (Genis) foe) - by Stunner

Intello of Earth-20051 (Marvel Adventures, Spider-Man foe) - by Grendel Prime

Inter-Dimensional Psycho-Pomp (unseen soul-eating creature) - by Proto-Man

Interface of Reality-691 (Force, Guardians of the Galaxy foe)

interfering robot (Spider-Man foe, coloring book)

Intergalactic Meanie possibly of Earth-665 (Colonel Egg-Nog, Not Brand Ecch)

Intergalactic Red-Tape Brigade's worst fear (unidentified monster)

Interloper (Defenders member) - by Chadman

"Interrogator" (Binary Beings)

Inti (Incan sun god) - by Proto-Man

Intuition (Sensors)

"Inuit Ghost Rider" (Ghost Rider character) - by Loki

Invader-1 (Tara, Invaders)

Inventor (Thomas Edison clone, human/bird hybrid, Ms. Marvel (Khan) foe) - by Chadman

Invincible (Joseph Hauer)

Invincible Man (Fantastic Four villain) - by Prime Eternal

Invisible Boy (Marvel UK, Heroes comic) - by Loki

Invisible Girl (Fantastic Four character, Brain Parasites host) - limited profile related to Brain Parasites only

Invisible Girl (Florence Steinberg) of Earth-1228

Invisible Gunman (Dr. Danger "partner")

Invisible Man (Adam Clayton)

Invisible Woman (1950s, Communist hero) - by Spidermay

Invisible Woman (Susan Storm-Richards)

Invisiguanodon of Earth-99476 (Dino-World, Invisible Woman counterpart) - by Loki

Inyushin, Anastasia of New Universe (Psi-Force) - by Prime Eternal

Iolanthe (X-Student, Beast character) - by MarvellousLuke

Ion (Superia's Femizons) - by Prime Eternal

Ione of Ultraverse (Crusader's squire)

Iowerth, Dafydd ap (Dr. Strange character)

Iprah (talk show host, merged with Deuteronomy)

I.Q. of Counter-Earth (Franklin) (Young Allies member) - by Norvo

Ira ?? (petty criminal, Spider-Man/X-Men foe) - by Chadman

Iraina (Kull foe) - by Greg O'Driscoll

Iratha Tzo (Grad Nan Holt, mother of the Friendless)

Irelle (daughter of Inhuman Auran)

Irellis (Inhuman of Utolan, Flint's mother)

Irene ?? (civilian, startled by Tagak) - by Chadman

Irene ?? (wife to Mark, former lover of Greg Garlick)

Irezumi (Pacific Overlords)

Irfan ?? (Kamran's father, Ms. Marvel (Khan) character)

Irham (Conan foe)

Iridia (butterfly-like Inhuman) - by Chadman

Iris (Warpies)

Iris ?? (serial killer, Black Panther foe) - by Chadman

Irish Wolfhound of Earth-691 (31st Century, Cuchulain)

Iriskani of Earth-9602 (Amalgam character)

Irma ?? of Reality-80324 (Paradox character)

Iron Angel of "Earth-8116" (Deadstar ally)

Iron Boy of Earth-665 (Forbush Man/Irving Forbush)

Iron Butterfly (Nth Command)

Iron Clad of Ultraverse (Ultraforce member) - by Grendel Prime

Iron Comrade (1940s "Soviet Super-Soldiers") - by Loki

Iron Cross of Eurth (Crossfire counterpart) - by Proto-Man

Iron Cross (Helmut Gruler, Invaders/Thunderbolts character)

Iron Cross (Oskar Mors, Invaders foe)

Iron Cross (modern day, Invaders foe)

Iron Cross (Clare Gruler, Invaders member, Inhuman) - by Chadman

Iron Curtain (Exiles, Russian mutant underground) - by Prime Eternal

Iron Despot of Earth-982 (MC2, Wild Thing (Rina) foe) - by Future

Iron Dragon of Earth-99101 (Drac de Ferro)

Irondroid I of Earth-90110 (Cosmic Avenger)

Irondroid II of Earth-90110 (Cosmic Avenger) - by Zerostar

Iron Duck (Howard the Duck)

"Iron Hand" Hauptmann (Exiles, Captain America foe) - by Snood & Markus Raymond

Iron Fist (Fan Fei, 1,000,000 B.C.) - by Proto-Man

Iron Fist (Bei Ming-Tian, 13th century) - by Loki

Iron Fist (Wu Ao-Shi, 16th century) - by Loki

Iron Fist (Daniel Rand's precursor, slain by the One)

Iron Fist (Davos, Steel Serpent)

Iron Fist (Daniel Rand)

Iron Fist (H'ylthri automaton) - by Chadman

Iron Fist (Junzo Muto)

Iron Fist of Earth-10001 (Misty Knight, Millennial Visions) - by Proto-Man

Iron Fist (Pei)

Iron Gennady (Gennady Gavrilov, Crimson Dynamo)

"Iron Giant" of Earth-776 (alternate Henry Pym, Avengers)

Ironheart of Eurth (Iron Man (Tony Stark) counterpart) - by Proto-Man

Iron Jack Baker (Circus of Crime strongman) - by Chadman

Iron Knight of Earth-398 (Iron Man (Stark), Queen's Vengeance)

Iron Knight (sentient armor/Ultron Mark Twelve, Iron Man foe)

Iron Lad (Immortus, possibly)

Iron Lad of Earth-18651 (Exiles member) - by Proto-Man

Iron Lantern of Earth-9602 (Amalgam character) - by Skullogeist

Iron Lantern 5700 of Earth-9602 (Amalgam character)

Iron Maiden (Superia's Femizons, Black Widow foe)

Iron Maiden (Gene Nation)

Iron Man (Zero, 1950s, Alonzo Greer creation)

Iron Man

Iron Man (Iron Man model 16/sentient armor/Ultron Mark Twelve, Iron Man foe)

Iron Man of Earth-11045 (presumably Weapon Infinity/Deathloks)

Iron Man 2020 of Earth-8410 (Arno Stark)

Iron Man of Earth-8377 (Lew Stringer What If) - by Loki

Iron Man of Earth-8912 (Andros Stark)

Iron Man's armor model 16/16A (sentient armor/Ultron Mark Twelve, Iron Man foe)

Iron Mask (Kid Colt/West Coast Avengers foe) - by Prime Eternal

Iron Mike (US One villain)

Iron Monger (U.S. Agent sparring partner) - by Prime Eternal

Iron Monger 2000 of Earth-19542 (armored Squirrel Girl foe in ruined NYC) - by Chadman

Iron Monger 2000 of Earth-21197 (armored Squirrel Girl foe)

Iron Monk (Wolverine foe)

Iron Moth of Earth-712 (Earth-S, Tom Thumb foe) - by Future

Iron Ogre (Captain Britain and Black Knight foe) - by Loki

Iron Prince of Earth-14181 (Nathaniel Richards, joined Kang, Exiles member)

"Iron Rick" of Earth-776 (Avengers, alternate Rick Jones)

Iron Ring (Melissa Morbeck, Squirrel Girl foe) - by Chadman

Iron Scorpion (criminal, Black Widow (Romanova) foe) - by Chadman

"Iron Spider-Ma'am" of Earth-19423 (May Parker, armored spider-themed heroine) - by Copeinator123

"Iron Spider-Man" of Earth-24472 (armored Spider-totem) - by Copeinator123

Iron Squirrel (Squirrel Girl)

Iron Tallon of Earth-238 (Crooked World)

Iron Thief (Grant Ward)

"Iron Wasp" of Earth-776 (Avengers, alternate Janet Van Dyne)

Ironwood, Cissy (Spider-Man character) - by the Beetle

Ironwood, Professor (Spider-Man character; Cissy's father) - by the Beetle

Irruk (Conan character, Shemite, King of Yamman)

Irudef (3000 BC, Black Axe foe)

Irving (Morlock, Generation M character) - by Chadman

Irwin ?? (Defenders character)

Irwin, Charles (reporter, Avengers character) - by Proto-Man

ISA scientist of Reality-80324 (Paradox character)

ISAAC (Titan's super-computer) - by Prime Eternal

Isaac ?? (Bartovian Liberation Front)

Isaac ?? (Junk-Food Junkies)

ISAAC-Prime (Titan's super-computer)

Isaacs, Herbert (Doorman)

Isadora, P. (actress, She-Hulk character) - by Norvo

Isbisa (All-Winners Squad foe) - by Caesar Godzillatron

Isen (Aaron Thorne thrall)

Ishanta (Black Musketeers)

Ishida, Emi (Trace, Hawkeye character)

Ishikawa, Ms. (X-Men character) - by Norvo

Ishima, David (Spider-Woman (Drew) character) - by Norvo

Ishimori, Michio (Go-Devil)

Ishiti (Conan foe) - by Greg O'Driscoll and Per Degaton

Ishiyama, Saburo (16th century, Ishiyama Sword School sensei)

Ishtar (Oshtur)

Ishtar (Inanna)

Iskelior (Dr. Strange foe)

Iskur (Ba'al)

Isis (Egyptian goddess) - by Will U

Isis of Guildern (Dark Angel/Wild Thing foe)

Island, Titus Alexander of Earth-7190 (Omega the Unknown character) - by Skippy

Iso (Xiaoyi Chen, Inhuman) - by Chadman

Issus (Elder God, Conan story)

Isuus (Issus)

It (Theodore Sturgeon character) - by Madison Carter

It the Living Colossus duplicate (Reed Richards' Monster Duplicates)

IT, the Silent One (Namor foe) - by Prime Eternal

Itar (Inhuman)

Itazura (I-Bots, "Ultravengers")

Itch (Professor and Mr. Kline henchman) - by Chadman

Ite (She-Hulk/Blaze foe)

Itobo, Joshua (Black Musketeers) - by the Beetle

ITT (Inorganic Techno Troids)

Itzamna (Mayan sky god) - by Will U

Itzra (Conan character)

IU-104/E (Eliminator) of Earth-8410 (Baintronics)

Iupiter Optimus Maximus (Zeus)

Iuriale (Dr. Strange foe)

Ivan ?? (Frankenstein character)

Ivan ?? ("Aspects of Eternity")

Ivan ?? (Punisher foe)

Ivan (dog, possessed by Venom)

Ivan the Terrible (Maverick foe) - by the Squid

Ivana, Lena (Morbius character) - by Markus Raymond

Ivanov (former client of Nelson & Murdock)

Ivanov, Maxim (Hellfire Club Moscow, X-Force foe) - by MarvellousLuke

Ivanova, Katarina (Seraph, Defenders character)

Ivich (Gladiators member) - by Elf with a Gun

Ivory of Earth-9134 (Moon Knight character)

Ivory of Earth-89923 (Wolverina character) - by Markus Raymond

Ivy, Mike (Guardsman)

Ixar (Avengers foe)

Ixchel (Mayapan)

Ixion (Tartarus)

Izak of "Earth-8116" (Dreadstar ally)

Izanagi (Japanese Sun God) - by Will U

Izanagi (Hand member, killed by Bakuto)

Izanami (Hand warrior, Daredevil foe) - by Chadman

Ize (Sofia Strange ally)

Izo (Master Izo)

Izzo (detective, Generation M character) - by Chadman

Izzy (Blood Brothers)

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