Grayson family

• Mark Grayson: A 17-year-old high school student and a Viltrumite/human hybrid who becomes the superhero Invincible.
• Nolan Grayson: Mark's father, Debbie's husband, and formerly the greatest superhero of Earth known as Omni-Man. He was originally sent by the Viltrimites to prepare the Earth to be conquered by them, but has a change of heart and begins showing compassion for others after nearly killing Mark after his secret is revealed. He works together with Mark, Allan, and his second son Oliver to combat the upcoming threat of the Viltrumites before he is crowned their new emperor when it's revealed he was the son of Emperor Argall.
• Debbie Grayson: Mark's mother, Nolan's wife, and stepmother of Oliver Grayson.
• Lord Argall: The former emperor of the Viltrumites and the father of Omni-Man and grandfather of Invincible and Oliver Grayson. He was revealed to have been killed by Thadeus which plunged Viltrum into a civil war.
• Oliver Grayson: Mark's alien half-brother. The result of a relationship between Nolan and a member of the Thraxans named Andress, who have short life spans, growing at a rapidly increased rate compared to humans, though his father's DNA is slowing his aging over time. Although his mother is an insectoid, he resembles a Viltrumite/human with purple skin (later fades to pink). Andressa tells Mark to take Oliver to Earth, so that he can have a life with the people there, because their lifespan is longer than her people's and he gets adopted by Debbie. He first takes the sobriquet of Kid Omni-Man and then Young Omni-Man as he attempts to rehabilitate the memory of Omni-Man in the general public. Kid Omni-Man was later killed by Thragg.
• Terra Grayson: The daughter of Atom Eve and Mark Grayson who would go on to become the third Invincible.
• Markus Murphy: Also known as Marky, he is the son of Mark and Anissa after the latter raped the former. He would go on to become Kid Invincible.

Superheroes

• Atom Eve: Samantha Eve Wilkins is a former classmate of Mark's and member of the Teen Team. Eve was created as a result of a government experiment to create super-beings. She can manipulate all matter, although a mental block has previously stopped her from creating and manipulating living things. Eventually, she and Mark realize their true feelings for each other and the pair start dating, fall in love, and get married after Eve gives birth to their daughter Terra. Eventually, she breaks her previous mental limits and her powers are bolstered to nigh-omnipotent levels, though she retains the discipline to not utilize it on other beings. Breaking her limits allows her to match Mark's Viltrumite powers.
• Allen the Alien: Previously a Champion Evaluation Officer who worked for the Coalition of Planets, he traveled on a tight schedule and tested the skills of various powered heroes on each planet in order to determine if there is a suitable "champion" to defend that planet. He was later promoted to leader of the Coalition of Planets.
• The Guardians of the Globe: A superhero team. Most of the original incarnation was brutally killed by Omni-Man causing another incarnation to be formed.
  • The Immortal: Apparently unkillable leader of the Guardians of the Globe and currently married to Dupli-Kate. It is suggested in flashbacks that one of his past identities was in fact Abraham Lincoln. In the present storyline, he is alive and was briefly beheaded by Omni-Man. The Mauler Twins dug up his body and reattached his head causing Immortal to live again. Revealed to rule the world as a tyrant in the far alternate future, where he is finally killed by Invincible at his own behest, Invincible prevents this in his own timeline by giving The Immortal the assistance of Robot's brain to rule with suggestive guidance.
  • Darkwing: A powerless member of the original Guardians of the Globe who was a parody of Batman. Killed by Omni-Man.
  • War Woman: A member of the original Guardians of the Globe with superhuman strength who was a parody of Wonder Woman. Killed by Omni-Man.
  • Aquarus: A fish-like member of the original Guardians of the Globe from Atlantis with aquakinesis who was a parody of Aquaman. Killed by Omni-Man.
  • Red Rush: Josef is a member of the original Guardians of the Globe with superhuman speed who was a parody of Flash. Killed by Omni-Man.
  • Green Ghost: A ghost-themed member of the original Guardians of the Globe who was a parody of Green Lantern. Killed by Omni-Man.
  • Martian Man: A shapeshifting member of the original Guardians of the Globe from Mars who was a parody of Martian Manhunter. Killed by Omni-Man.
  • Black Samson: Markus Grimshaw is an original member of the Guardians of the Globe with super-strength. Lost his powers (and with them, his Guardian status) for a while and wore a high-tech armor made by Art Rosenbaum before recovering them very abruptly. When Robot went rogue and started conquering the world, Black Samson is among the superheroes killed.
  • Rex Splode: Rex Sloan is a former member of the Teen Team and the Guardians of the Globe who can make objects explode by charging kinetic energy. He sacrificed himself to kill a hostile alternate-dimension Invincible.
  • Dupli-Kate: Kate Cha is a former member of the Teen Team and the Guardians of the Globe who can create an army of duplicates of herself. She eventually becomes the Immortal's wife and has children with him.
  • Bulletproof: Zandale Randolph is a superhero with energy absorption abilitiees. Initially turned down of membership in the Guardians of the Globe, Bulletproof did later join the team and is currently a member. On a related note, Bulletproof was one of the proposed names for the title character before the series saw print. Bulletproof later becomes the second Invincible after Mark temporarily loses his powers. He eventually betrays the Guardians to side with Robot when the latter took over the world. His face was scarred when Immortal activated a bomb in himself.
  • Shrinking Ray: Former member of the Guardians of the Globe who had the ability to shrink his body. He was consumed by Komodo Dragon of the Lizard League.
  • Monster Girl: Amanda is a girl who was cursed by a gypsy, now able to shapeshift into a large ogre-like creature with superhuman strength. A side effect is that with each change into Monster Girl, her normal self becomes younger physically. Her boyfriend, Robot, however found a cure for the curse, allowing her to develop normally.
  • Shapesmith: A Martian disguised as human astronaut Rus Livingston who uses his metamorphic powers to change his shape.
  • Darkwing II: Formerly Night Boy, the original Darkwing's sidekick, Benjamin Taylor continued Darkwing's legacy where he snapped and started killing criminals until Invincible apprehended him. A reformed Darkwing joined the Guardians of the Globe. He can teleport himself and others via the Shadow-verse using any shadow large enough to envelop him. Dragged by one of the extra-dimensional Invincibles into the Shadow-verse, this new Darkwing is later revealed to be alive and aged from the experience.
• Fightmaster and Drop Kick: Two time-travelling martial arts masters who stole the Declaration of Independence, he is from the same era as the future insane Immortal.

Allies

• Amber Justine Bennett: Mark's ex-girlfriend who he first dated in high school. The two break up after realizing how much Mark's superhero life is interfering in their relationship, but remain on good terms.
• William Francis Clockwell: Mark's roommate and best friend. He initially dates Eve, though Eve admitted she only did it to get close to Mark. He is revealed to be homosexual and begins dating Rick.
• Global Defense Agency: A government organization that the Guardians of the Globe and other superheroes work for.
  • Cecil Stedman: Government liaison and head of the clandestine Global Defense Agency. Cecil has a dubious relationship with Mark and the other heroes, prioritizing Earth's safety over all else. Mark later stops working with him after discovering he's hired several supervillains he's defeated to the GDA and has several failsafes in place to potentially stop or kill him, but eventually comes under his employment again to attone for working with Dinosaurus. Cecil is later killed by Robot after Mark warns him of his true intentions.
  • Donald Ferguson: Cecil's assistant, the Guardians of the Globe contact, and android.
  • Damien Darkblood: A demon detective.
• Art Rosenbaum: A tailor of superhero costumes and family friend of the Graysons.
• Rick Sheridan: Mark and William's classmate at Upstate University who was turned into one of the Reanimen. After he recovers from the ordeal, he begins dating William.
• B. N. Winslow: Mark and William's principal at Reginald Vel Johnson High School who later becomes the dean at Upstate College.
• Andressa: A member of the insectoid Thraxan who is the second wife of Omni-Man and the mother of Kid Omni-Man.
• Coalition of Planets: A group of aliens who came together to prevent the Viltrumites from taking over the universe.
  • Thaedus: A peaceful member of the Viltrumites and founder of the Coalition of Planets. He was responsible for killing Emperor Argall enough to plunge Viltrum in a civil war where the weaker Viltrumites were killed. Afterwards, Thaedus went on to establish the Coalition of Planets. Thaedus is later killed by Thragg during the Viltrumite War.
  • Allen the Alien: A one-eyed Unopan and member of the Coalition of Planets.
  • Space Racer: A technopathic member of the Coalition of Planets whose gun has blasts that can harm Viltrumites and rides a hover-cycle.
• D.A. Sinclair: A young and reclusive scientist at Upstate University and creator of the "Reanimen" who is hired by Cecil to build Reanimen out of the corpses of extra-dimensional Invincibles.
  • Reanimen - A group of cyborg zombies intended to be "the soldiers of the future".

Enemies

• David Hiles: A weapons engineer for a military-sanctioned research firm. His son committed suicide which also resulted in him getting divorced from his wife and also shortly thereafter lost his job. David joined the staff of "Reginald Vel Johnson High School", where one of his students was Mark Grayson, the teenage superhero called Invincible.
• Robot: Former leader of the Teen Team and leader of the Guardians of the Globe until replaced by the Immortal. Not an actual robot, but a drone body controlled by a malformed human named Rudolph Connors living in a life-support tank, he cloned a new human body for himself using Rex Splode's DNA with the help of the Mauler Twins. Afterward, Robot would become romantically involved with Monster Girl. In Issue #71, he and Monster Girl disappear into a Flaxan portal and return several issues later. Changed from the time he spent in the Flaxan dimension, he becomes an antagonist to Invincible and other heroes who oppose him.
• Mauler Twins: An evil super-strong blue-skinned scientist and his clone who both continuously argue as to which is the original. After the original was definitely killed, making them both clones, they switched to arguing which is the original clone. During a fight against the Guardians of the Globe, both Mauler Twins were killed by Kid Omni-Man. They come back in a later issue with one of them explaining that they have countermeasures in case both of them die.
• Sanford: The former butler of Black Samson who wanted revenge on the Guardians of the Globe for firing Black Samson only to be denied when they were killed. He went on a rampage after that.
• Angstrom Levy: A genius with the ability to leap across dimensions and is one of Invicible's archenemies. After being disfigured by one of his inventions, he blames Invincible and swears revenge. Angstrom was later beheaded by Rex Splode.
• The Viltrumites: Invincible and Omni-Man's species who are known conquerors of different planets.
  • Thragg: The Grand Regent of the Viltrum Empire. He would later go rogue after being deposed by Omni-Man and now seeks vengeance on Omni-Man and his family. He later fathers an entire army of half-Viltrumite children in order to attack Earth. He is Invincible's archenemy and the main antagonist of the series. Thragg was later killed by Invincible.
    • Ursaal: A Viltrumite/Thraxan daughter of Thragg and one of his many children.
    • Onnan: A Viltrumite/Thraxan who is one of Thragg's sons. He was killed by Invincible.
  • Conquest: An elderly, battle-scarred member of the Viltrum Empire. He is a psychopath who relishes in fighting and killing those who oppose the empire. Headbutted to death by Invincible.
  • Anissa: A Viltrumite who was infatuated with Invincible to the point that she raped him and gave birth to their son Marky. Killed by Thragg's children.
  • General Kregg: A member of the Viltrumites who possesses a cybernetic right eye.
  • Thula: A member of the Viltrumites who uses her long hair as a weapon.
  • Lucan: A member of the Viltrumites.
  • Alternative Mark Graysons: Evil versions of Mark Grayson from parallel universes.
• Titan: Titan can encase his body in super-strong, nearly invulnerable rock. Titan first appeared in Capes. Titan was a member of the organized crime group the Order until Mister Liu revoked his membership.
• Battle Beast: First appearing as one of Machine Head's several henchmen, Thokk is a white lion-like alien. He is later released from imprisonment on the Viltrumite Prison Warship where Allen the Alien and Omni-Man were held, and Allen the Alien used his insatiable lust for battles to coax him into helping in their jailbreak. Battle Beast was later killed by Thragg.
• The Flaxans: Aliens from another dimension, in which time passes at a dramatically faster pace.
• Machine Head: A crime boss with a robotic head. He later appeared as a member of the Order.
• Doc Seismic: A villain with special gauntlets that enable him to induce earthquakes, also controls an army of Magmanites and other subterranean monsters.
  • Magmanites: A race of lava monsters.
• The Sequids: A group of psychic aliens that invaded Mars causing it to be quarantined.
• Rus Livingston: An astronaut accidentally left behind on Mars, he's been attacked and made a host of the psychic Sequids.
• The Lizard League: A group of lizard-themed terrorists, they are parodies of fictional reptile-based villain groups The Serpent Society, HYDRA and Cobra. The Lizard League consisted of lizard-named agents along with an army of human followers. Their secret headquarters lies in the Florida Everglades and bears a striking resemblance to a Cobra Terrordrome.
  • King Lizard: The leader of the Lizard League who is an expert strategist and an expert at hand-to-hand combat. King Lizard is the only member of the Lizard League to currently be alive.
  • Komodo Dragon: A Komodo dragon-themed member of the Lizard League with super-strength. He was killed when he bit off Rex Sloan's explosive hand.
  • Komodo Dragon II: The successor of the original Komodo Dragon.
  • Salamander: A salamander-themed member of the Lizard League with toxic abilities.
  • Iguana: A female iguana-themed member of the Lizard League with claws.
• Furnace: A villain with a massive steam-powered iron suit armed with dual flame-throwers and jets. He is actually a man made entirely of liquid heat from which the suit earns its power. Furnace later appeared as a member of the Order.
• Magnattack: A villain for hire with the ability to apparently push metal objects away from him, hence his massive armor plated suit.
• Kursk: A Russian villain for hire who can electrify single targets at a time. He was hired by Machine Head to deal with Titan, but was quickly defeated by the Guardians of the Globe.
• Tether Tyrant: A freelance villain with a vest which houses elastic appendages which can pull and throw victims around. Later merged with the sentient alien vest.
• Magmaniac: A freelance villain who is part lava.
• Master Mind: A criminal with the ability to mentally control the bodies of large groups of people. He was previously seen in the pages of Brit.
• Bi-Plane: An age-old villain who believes in using old-fashioned technology for his attacks.
• The Elephant: A small-time elephant-themed supervillain that has been described in-story as a "lame Rhino rip-off".
• Isotope: A teleporting criminal, Titan's lieutenant.
• Giant: An eight-year-old boy who was pulled into another dimension where he transformed by a sorcerer into gigantic orange-red Cyclops. He became a king in the other dimension until he was teleported back by one of his enemies.
• The Order: A criminal organization.
  • Mister Liu: An elderly Asian cyborg and leader of the Order. He can project his soul out of his body, taking the form of a giant Chinese dragon.
  • Embrace: A female supervillain and member of the Order.
  • Face: A supervillain and member of the Order whose head sports three eyes, two mouths, two noses, and a dual brain.
  • Insomniac: A supervillain and member of the Order who has insomnia.
  • Isotope: A teleporting supervillain and member of the Order.
  • Multi-Paul: Dupli-Kate's brother and a member of the criminal organization called the Order. He shares Kate's self-duplicating power.
  • Octoboss: An octopus-like supervillain and member of the Order.
  • Red Eye: A supervillain and member of the Order whose eyes glow red whenever he is about to use his heat vision.
  • Slaying Mantis: A mantis-armored supervillain and member of the Order who has expert swordsmanship.
  • Walking Dread: An electrokinetic supervillain and member of the Order with a monstrous appearance.
  • War Woman II: A member of the Order. She was the former lover of the original War Woman until she was killed by Omni-Man which led to her taking over Amazonia and planning revenge on the men of the world.
• Dinosaurus: A mutant dinosauroid who transforms when he feels indifferent. As Dinosaurus, he is highly-intelligent and develops various plans to improve the world, but they are usually destructive and result in many lives being lost. Mark later breaks him out of prison and forms a partnership to figure out less destructive means to improve the world, but is forced to kill him when he's unable to do so.

In 2003 and 2004, Image and Robert Kirkman published several other superhero series: Tech Jacket pencilled in a manga style by E. J. Su (cancelled at #6), the 3-issue Capes Inc. series drawn by Mark Englert and three oneshots starring Brit, the first two with artwork from Tony Moore and the third with artwork by Cliff Rathburn.

In 2007, Brit was launched as an ongoing full-color series written by Bruce Brown, with artwork by Cliff Rathburn. The series was overseen and edited by Robert Kirkman. In late 2007, a two issue mini-series starring Atom Eve was released.

Tech Jacket was first collected as a digest-sized, black and white graphic novel and later reissued in regular sized, full color and a cover scheme similar to Kirkman's other trade paper backs. Capes was collected as a trade paperback in summer 2007, and the three Brit one-shots were colored by Val Staples and published as a collection in 2007, as well.

At first shown to barely coexist in the same universe, the characters have since been integrated into Invincible's book. Tech Jacket was an ongoing series that tied into Invincible #27, and the character has been seen in the background of various battles during the series. The characters from Capes have also been supporting characters seen mainly in large superhero battles Invincible participates in, and the series ran as a back-up in the Invincible book starting with #27. Brit has had an even less substantial role, appearing a couple of times in the aforementioned brawls (understandable considering that after the last book Brit was somewhat-retired). Brit later went on to become the leader of the Guardians of the Globe and was featured heavily in comic spin-offs Guarding the Globe and Invincible Universe. In The Astounding Wolf-Man, Art, Invincible's tailor, appeared, designing the title character's costume. Wolf-man has also appeared in Invincible #48 & 49.

Side stories

Trade paperbacks

With the exception of volumes 14, 18, 22, 24, and 25, every volume of the Invincible trade paperbacks is named after a television sitcom:

Hardcovers

Other collections

• Invincible also appeared in Marvel Team-Up Vol. 3 #14, which was collected in Marvel Team-Up Volume 3: League of Losers ISBN 0-7851-1946-9. This story occurs "between the pages" of Invincible #33.
• In November 2006, the Official Handbook of the Invincible Universe was released. This two-issue series told the origins of all of the characters seen in the series so far, and was done in the style of the Official Handbook of the Marvel Universe, including similar covers. The series was collected into a trade paperback in November 2007.

Motion comics

The comic has been turned into a motion comic by Gain Enterprises using the Bomb-xx process, and is broadcast on MTV2^[172] and downloadable to mobile phones, from iTunes,^[173][174] and Amazon.^[175]

Cast

• Patrick Cavanaugh as Invincible
• Mark Fountain as Nolan Grayson
• Victoria Kelleher as Debbie Grayson
• Wendy Allyn as Atom Eve
• Stan Kirsch as Robot
• Jeff Shuter as William Clockwell
• J. Anthony McCarthy as Criminal
• Tom Ohmer as Cecil Stedman
• Hosea Chanchez as Mauler Twins
• Daniel Kirschner as Criminals
• Eric Wolfgang Nelson as Rex Splode
• Keith Stone as Allen the Alien
• Mike Connel as Derek
• Bill Garnet as Art Rosenbaum
• Leslie-Anne Huff as Dupli-Kate
• Paul Kresge as Teen Bomb
• Cynthia Sophiea as Mrs. Thatcher

Film

Point Grey Pictures and Skybound Entertainment were set to produce a live-action adaptation of Invincible with Seth Rogen and Evan Goldberg attached as writers and directors and Universal Pictures distributing it. Series creator Robert Kirkman was also set to produce the film, along with Rogen, Goldberg, David Alpert, Bryan Furst, and Sean Furst.^[176] In January 2021, Kirkman reaffirmed that the film is still in development despite the release of a streaming television adaptation, and that Rogen and Goldberg are still involved with the project.^[177]

Television series

On March 25, 2021, Amazon Studios began airing the first season of an adult animated adaptation of the comic series on Amazon Prime Video, executive produced by comic creator Robert Kirkman.^[178] The cast features Steven Yeun as Invincible, Sandra Oh as Debbie Grayson, and J. K. Simmons as Omni-Man.^[179] Rogen ending up being involved as a part of the cast, he and Goldberg were not set to direct/write/produce the series.^[180] Kirkman, along with Yeun, confirmed the series was coming back for a second and third season.^[181] The second season was released on November 2, 2023.

Video games

In July 2023, during San Diego Comic-Con, it was announced that Skybound Games and Ubisoft would release a mobile game based on the series, entitled Invincible: Guarding the Globe, with a release date yet to be determined.^[182] That same month, it was announced that Skybound Games and Terrible Posture Games were developing a visual novel/turn-based RPG entitled Invincible Presents: Atom Eve which released on Steam and Epic Games Store on November 14, 2023.^[183]

Omni-Man is a playable DLC character in Mortal Kombat 1 (2023), voiced by J. K. Simmons, reprising the role, playing several incarnations of Omni-Man from alternate realities, including a blue-suited version.^[184] Invincible also cameos in the game.

Invincible, Omni-Man, and Atom Eve appear as purchasable skins in Fortnite. War Woman's Mace and the arm of a Reaniman are available as pickaxes, while the Immortal's head is a wearable Back Bling.