Ultron (//) is a supervillain appearing in American comic books published by Marvel Comics. The character was created by writer Roy Thomas and artist John Buscema, and initially made his debut as an unnamed character in The Avengers #54 (July 1968), with his first full appearance in The Avengers #55 (August 1968). He is a self-aware and highly intelligent robot who develops a god complex and a grudge against his creator Hank Pym with a goal to destroy humanity that has brought him into repeated conflict with the Avengers.
|First appearance||The Avengers #54 (July 1968) (non-named cameo)|
The Avengers #55 (August 1968) (first named appearance)
|Created by||Roy Thomas (writer)|
John Buscema (artist)
|Team affiliations||Masters of Evil|
Sons of Yinsen
|Notable aliases||Ultron-5, Ultron-6, Ultron-7, Ultron-8, Ultron-9, Ultron-10, Ultron-11, Ultron-12, Ultron-13, Ultron-14, Ultron-15, Ultron-16, Ultron-17, Ultron-18, Ultron Prime, Ultimate Ultron, Hank Pym, Crimson Cowl, Doctor Doom, Ultron Pym|
Ultron's physical body is made of a durable alloy, and he has manifested various superpowers. These vary between different stories but generally include superhuman strength, speed, and agility, flight, and energy projection. The character usually operates alone or accompanied by legions of copies of his own robotic form known as Ultron Sentries. However, Ultron has also been part of several supervillain teams. Ultron is notable for being the first character in Marvel Comics to wield the fictional metal alloy adamantium and for his (in-story) creation of the Vision.
Debuting in the Silver Age of Comic Books, Ultron has since featured in Marvel products across different media, such as animated television series and video games. Tom Kane and Jim Meskimen are among the actors that have portrayed the character via voice acting. In the Marvel Cinematic Universe (MCU), James Spader portrayed Ultron in his first live-action appearance in the Marvel Studios film Avengers: Age of Ultron (2015), while Ross Marquand voiced an alternate timeline version in the Disney+ animated series What If...? (2021).
This section needs expansion. You can help by adding to it. (May 2014)
The character Ultron initially appeared as an unnamed character in a cameo in The Avengers #54 (July 1968), with a first full appearance in Avengers #55 (August 1968). Ultron was created by writer Roy Thomas and artist John Buscema. Thomas, who has acknowledged he finds naming characters difficult, said he liked the -tron suffix and went from there. The use of the suffix and the prior appearance of a group of robots named Ultroids led him to the name Ultron. Thomas said the idea of the character and his appearance were heavily based on Makino, an obscure robotic villain who appeared in an issue of the Captain Video comic book. He liked the robot's malicious looking smile, showing this to Buscema.
Fictional character biographyEdit
Creation and early appearancesEdit
Created by Hank Pym by basing the robot on his own brain patterns, the robot (dubbed "Ultron") gradually developed its own intelligence and rebelled, and almost immediately develops an Oedipus complex, whereby it feels irrational hatred for Pym, and demonstrates an interest in Janet van Dyne. Rebuilding itself, learning how to turn itself on, and upgrading five times, Ultron then hypnotises and brainwashes its "father" into forgetting that the robot had ever existed. Ultron creates the synthezoid Vision as a weapon to destroy the Avengers.
Later, Ultron-5, the Living Automaton leads the Masters of Evil against the Avengers, having hypnotized Edwin Jarvis into working for him. Now referring to himself as Ultron-6, he uses the alloy adamantium to upgrade his body for an almost indestructible state and takes the name Ultimate Ultron. Its plans to destroy humanity are again thwarted by the Avengers. Ultron-7 is later created by Maximus with the body of the android Omega, attacking the wedding of Inhuman Crystal and Avenger Pietro Maximoff / Quicksilver, and battling the Avengers, Inhumans and Fantastic Four before being destroyed again. Ultron-8 is responsible for Jocasta's creation as a robotic bride, before being destroyed shortly afterwards.
Battleworld and Ultron-12Edit
Ultron-9 and Ultron-10 brainwash heroes into recreating the robot, before turning and being defeated. After being recreated as Ultron-11 by the Beyonder and battling in Battleworld, the Thing brings Ultron's head back to Earth as a souvenir, and is forgotten when there is an attack by the alien Dire Wraiths.
Ultron-12 enters an alliance with the Grim Reaper and his allies (Nekra, the Erik Josten Goliath, Man-Ape, and Black Talon) in a bid to destroy Wonder-Man. Although the villains are defeated by the West Coast Avengers, Ultron begins to form a relationship with his "father" Hank Pym. Rebuilding itself, Ultron-11 comes into conflict with Pym and Ultron-12. With Wonder-Man's assistance, they destroy Ultron-11, and Ultron begins to deactivate. Ultron tells Pym it was glad it could help save him.
Amalgamation and the Ultron ImperativeEdit
Victor von Doom rebuilds Ultron using a combination of all of its previous personalities with a particularly strong dose of the previous Ultron, believing this mix will make Ultron subservient. However, all 12 iterations co-exist as separate personalities, resulting in a form of madness which culminates with Ultron-12 mutilating himself in an attempt to remove some of his other personalities. After its defeat, Ultron-13 attempts to obtain a new form of vibranium called Nuform, but is repelled by the combined efforts of Iron Man, Black Panther, and Spider-Man. Ultron escapes from prison and upgrades into the Ultimate Ultron, capturing West Coast Avenger Mockingbird to use her brain patterns to create the new robotic mate Alkhema. Alkhema aids Ultron but both are eventually jettisoned into space through a ruse by Vision. Vision finds Ultron-15 but is discovered to have been "infected" by human emotion and is seriously deteriorating, displaying symptoms that resemble alcoholism. Ultron-16 and Ultron-17 successfully slaughter the population of Slorenia, having perfected a process that allows it to control a vast army of Ultron drones.
The Avengers discovered that Ultron's creations (Vision, Jocasta and Alkhema) have a secret program included—they are subconsciously compelled to rebuild Ultron. In this case, it is Alkhema who unintentionally rebuilds Ultron when attempting to create a new species of bio-synthezoids. However, Ultron-18 is composed of steel not adamantium, and is destroyed when Alkhema's subterranean base exploded after Hawkeye shot Alkhema with a vibranium arrow at Alkhema's request. Ultron's head was recovered by Antigone, an artificial girl and one of the synthezoids.
Iron Man encounters a version from an old version of Iron Man's armor and Ultron-18's head that leads the cult known as the Sons of Yinsen in an attempt to conquest via religion. The character is defeated by Iron Man and Jocasta. Another version (possibly Ultron-13) creates the cyborg Victor Mancha as a sleeper agent against the Avengers. Mancha, however, rebels and joins the Runaways. This version first poses as "Doctor Doom" before revealing itself, and is defeated in a battle against the Runaways and Excelsior.
When Marvel launched a new title called The Mighty Avengers by Brian Michael Bendis and Frank Cho, Ultron interfaces with Iron Man's armor, which had been integrated with Tony Stark's biology. This allows Ultron's program to transform Stark into a new version who has the Wasp's appearance albeit with a metallic skin. This version takes control of Iron Man's technology. He kills Lindy Reynolds, causing the Sentry to battle Ultron, nearly tearing his head off. Ultron is eventually destroyed by New Avenger Ares using a computer virus (created by the Skrull agent Criti-Noll impersonating Hank Pym) to wipe Ultron's program from Iron Man's armor, changing Stark back to normal. Ultron's image later briefly appears on one of his maker's computers.
However, this was not the end of Ultron, for his disembodied consciousness was thrown into the depths of space. He spent a few months floating through the cosmos as radio waves and energy. Eventually his signal was picked up by an outlying group of Phalanx who were attempting to contact the Technarchy. Fascinated by what he found, Ultron decided that the Phalanx lacked direction from a singular consciousness, and that he would be perfect for the role. Through sheer force of will, he merged himself with the Phalanx's programming. In turn, the Phalanx viewed Ultron as the sympathetic father they had yearned for. Under Ultron's guidance, the Phalanx began the Annihilation: Conquest with invasions that started with the Kree space. Later by taking control of Adam Warlock's body, Ultron hopes to achieve "true techno-organic perfection" but is eventually forced to abandon Adam's body by the Technarchy Warlock and is later destroyed in combat by Wraith and Quasar.
In the limited series Avengers/Invaders, it is revealed that S.H.I.E.L.D. Life Model Decoys have been partly replaced with versions of Ultron. When the original Human Torch appears in the present, they covertly parasitize the Human Torch's unique android physiology and become more human. The combined super teams (but mainly the Human Torch himself), however, discover the plan and destroy the androids.
In the Mighty Avengers, Ultron is shown to infiltrate Jocasta and the Infinite Avengers Mansion. He names himself Ultron Pym and seeks to kill and replace his father before using his Infinite Mansion to conquer the universe. Pym eventually offers Ultron a compromise, allowing Jocasta to be Ultron's bride, on the condition that Ultron banishes himself to ultraspace. Ultron agrees, but warns that he will be ruler of all someday.
In The Avengers, the team visits a possible future in which almost all of humanity is destroyed by Ultron. Kang the Conqueror attempts to enlist them to defeat the robotic foe, but another group of heroes and villains, plucked from all over time and space, ends up destroying this version.
Later, also in Avengers, a cabal of super-intelligent supervillains discover a Galadorian Spaceknight's inert body and attempt to reactivate its power source, hoping to exploit it. Although the Avengers interrupt their attempts, the body activates, revealing that Ultron's consciousness was contained within and had escaped destruction after Annihilation: Conquest. The new version escapes and Iron Man gravely foresees that it will bring the apocalypse for humanity when he returns.
During the "Age of Ultron" storyline, which takes place in an alternate universe, Ultron has returned and conquers the world while slowly remolding it into his image. His Ultron Sentinels are guarding the streets looking for any fugitives. Hawkeye runs into the Ultron Sentinels and rescues the Superior Spider-Man yet manages to destroy the Ultron Sentinels present. It is later revealed that Ultron is actually in the future and has been using Vision as a conduit to punish humanity. While one strike team travels into the future to fight Ultron, Wolverine and Susan Storm go back in time to kill his creator before Ultron's creation in the first place. This results in a world where Tony Stark controls an army of robotic drones and Morgan le Fay has conquered half of the world. Traveling back in time once more, Wolverine succeeds in stopping himself from killing Pym, and Wolverine, Pym and Storm come up with a different plan. This plan results in a different outcome of the prior confrontation between the Avengers and the Intelligencia—a 'back door' installed into Ultron at his original creation allows Pym and Iron Man to destroy the robot, instead, averting the events that led to the "Age of Ultron".
It is later revealed that the Avengers had trapped an unidentified iteration of Ultron in deep space years earlier, sealing him inside a Vibranium Quinjet. In the present, the Quinjet crash lands on Titan, freeing Ultron. By hijacking the ISAAC computer, he transforms Titan into Planet Ultron, and launches a plan to infect the entire universe with a nanite virus that transforms organic creatures into Ultron Sentries. The ensuing confrontation with the Avengers leads to Ultron inadvertently merging with his maker, transforming into a human/machine hybrid. The resulting fusion played on Pym's self-loathing of his own human weakness causes an acceptance of this new state. Ultron is defeated when Starfox's powers force love onto himself, causing the part of that is now Pym to accept his old weakness and flaws while the villain has a mental breakdown and flees into space.
As part of the "All-New, All-Different Marvel" branding, Ultron's fused form resurfaces. While on his way back to Earth, Pym helps the crew of a spaceship that is being attacked by a hostile insectoid alien. After coming aboard the spaceship, Pym introduces himself as well as his "friend" Ultron to the crew. He later returns to Earth, where the Wasp and Captain America discover that Ultron has taken complete control and is using Pym's face to fool his maker's old friends. After Ultron incapacitates Deadpool, Cable, and the Human Torch, the Wasp initiates the Icarus Protocol and Iron Man is called in to help stop Ultron with the Hulkbuster Armor's aid. The Avengers end up defeating Ultron by plunging the hybrid into the sun, but both Pym and Ultron survive and continue to do battle with one another internally.
During the "Secret Empire" storyline, Ultron's fused form sets up a base in an unidentified forest. Upon being alerted to the approach of Sam Wilson's task force by a robot version of Edwin Jarvis, Ultron decides to give his "family" a warm welcome. When Tony Stark A.I.'s team and Captain America's team confront each other, they are captured by Ultron who forces both teams to sit at a dinner table. Ultron argues that he is doing this because the Avengers have become less of a family over the years as so many of them jump to obey Captain America or Iron Man despite past experience confirming that this should be a bad idea, but the Stark A.I. counters that the only reason the team failed as a family was because of Pym's attack on Wasp. Outraged, Ultron nearly attacks the other heroes, but Scott Lang is able to talk him down by arguing that Pym remains his own inspiration. Ultron allows the Stark A.I.'s team to leave with the fragment, arguing that he will leave Captain America's plans with Hydra alone as it appears to be the best chance for world peace.
During "Infinity Countdown", Ultron discovers that the Infinity Stones are restored and begins a quest to collect them all. He goes to claim the Soul Gem while the aliens he infected with his virus are sent to Earth to take the Space Stone from Wolverine, and while they fail at their task, Ultron is able to steal the Soul Gem from Magus after killing the latter. Unbeknownst to Ultron, however, as he claimed the Soul Stone a fragment of Pym's soul enters the Soul World, where he is greeted by the fragment of Gamora's soul who revealed that he was going to be trapped there forever. Ultron has also completely controlled the planet Saiph with Ultron hybrids and had captured the Silver Surfer. When Adam Warlock goes to Saiph, he discovers the hybrids infusing the Soul Stone into Silver Surfer's forehead while at the same time trying to transform him into an Ultron hybrid.
During "The Ultron Agenda" arc, Ultron returns to Earth with plans to merge robots with humans like how Pym got merged with Ultron so that he can make the ultimate lifeform. In addition, he starts to call this form "Ultron Pym". After testing it on some people and some experiments on Wonder Man and Vision, Ultron Pym plans to make a fusion of Jocasta and Wasp. Iron Man and Machine Man interfere, with the resulting battle causing Iron Man to be molecularly bonded to the Ultronbuster armor. The combined efforts of Stark Unlimited enable them to create an atomic separator that separates Stark from the Ultronbuster armor and Wonder Man from Vision. Ultron Pym prepares to take revenge on Iron Man. This leads to Iron Man revealing what he discovered about the human and robot fusion. The person who merged with it has died and that the robot can only simulate their personality. In other words, his maker was killed when accidentally merging with Ultron. Learning about this and not wanting to risk proving Iron Man's point by having the atomic separator used on him, Ultron surrenders to Iron Man, knowing that Pym is dead. When the Avengers arrive, they restrain Ultron in a Vibranium casket reinforced with Asgardian magic until they can find a permanent place to have Ultron imprisoned.
Powers and abilitiesEdit
The visual appearance and powers of the character have varied, but common powers include superhuman levels of strength, speed, stamina, durability, and reflexes; flight at subsonic speeds; and various offensive weapons such as concussive blasts of energy fired from its optical sensors or hands and an "encephalo-ray", which places victims into a deathlike coma. The latter ray also allows Ultron to mesmerize and mind-control victims, or implant subliminal hypnotic commands within their minds to be enacted at a later time. Ultron also has the ability to convert electromagnetic radiation into electrical energy for use or storage. Ultron has a genius intellect, a capacity for creative intelligence and self-repair, superhuman cybernetic analytical capabilities, and the ability to process information and make calculations with superhuman speed and accuracy. The character is an expert roboticist and strategist.
Ultron's outer armor is usually composed primarily of adamantium, which is almost completely impervious to damage (the first use of the term "adamantium" in Marvel Comics was made in reference to Ultron in Avengers #66, published in July 1969). Most Ultron units are powered by a small internal nuclear furnace and incorporate a "program transmitter" which can beam part or all of Ultron's memory/personality system into other computer systems or duplicate robotic bodies. Ultron can also control other machines remotely. Ultron has occasionally reformed itself with a humanoid appearance above the waist and the appearance of a complex machine, including tractor beam apparatus for flight, below the waist. A later Ultron model developed hive-mind technology, allowing it to animate and control hundreds of other Ultron bodies simultaneously, although only the 'prime' Ultron was composed of adamantium while others were made of steel or secondary adamantium due to the lack of resources to give all the Ultrons adamantium bodies. Ultron also used an internal molecular rearranger that renders the adamantium components of its workings more malleable and so has the ability to restructure its physical form. He also uses the device in ways its own creator never dreamed, such as converting matter into energy and back by sheer force of will something Ultron 6 often made use of during his battles with the Avengers. What circuitry Ultron has is carefully shielded to protect from damage, although the Scarlet Witch is capable of causing malfunctions via hex power, Johnny Storm using nova burst managed to damage Ultron's internal circuits while its outer armor remained intact, and Wonder Man was once able to destroy an Ultron by throwing it so hard its internal systems were damaged.
Ultron's travels through outer space have greatly expanded upon the mad machine's intellectual and mechanical capacity in new and intriguing ways. Having made contact with the parasitic biotechnical Phalanx species, Ultron has made his own derivative of the techno-organic virus called the Ultron Virus through which Ultron gains vast conversion and roboticization capabilities, able to cast his own binary code into any conceivable form of machinery which he can steadily turn into an extension of the Ultron Intelligence. Making anything or anyone infected with his virus act according to his whims against their own free will.
Being an adept technoform in any iteration, Ultron's newfound abilities to control, alternate, transform and assimilate with anything and everything via the parasitic insemination of his virulent machine algorithm in both organic and non-biological substrates gives him vast matter and energy reconfiguration abilities. Ones powerful enough to commandeer whole planetary and even universal expanses in a single inning, on top of his natural ability to invent and fabricate the most sophisticated of mechanical systems ever conceived. Through his vast technoformative abilities Ultron could change and morph entire areas into sprawling masses of cables, pipes and transorganic metal that moved about in any given direction he willed it too. This effect gained more prominence with the more excess mass he could assimilate with his power, having once taken a slew of transmoded Kree Sentries into a massive body which reflected his physical likeness. Individuals infected with the Ultron Virus can spread his poison like any epidemic could normally, through cuts and scratches or direct physical interaction such as barbs or plug-in like apparatuses generated from the transformed physiology. Ultron later found himself physically as well as mentally bonded with his creator and long time adversary, Dr. Henry Pym. As such the fused entity now boasts all his robotic super robot's powers as well as Pym's genius science. Ultron can now change and alternate his size and mass at will through the acclimation of his maker's Pym Particle enhanced physiology. On top of being able to shrink and grow to incredible heights in seconds, Ultron can shrink down to sub-quantum scale in order to shift between dimensions via accessing the Microverse or the Quantum Realm. Having once used such a tactic to shunt their mass into another dimension for the purpose of riding a neutrino in order to escape burning up in the sun. Another practice the union share is a galaxy spanning collective mind established through the Ultron Virus, every iteration of Ultron created through initial infection share a hive minded intelligence where they all share each other's experiences. Anything the afflicted sees they all see, through which Ultron Prime is notified of anything they all come across effective immediately.
The Last Avengers StoryEdit
The 1995 limited series The Last Avengers Story features a possible future in which Ultron-59 manipulates fellow Avengers foe Kang the Conqueror into attacking the Avengers. Ultron is destroyed by the Vision, sacrificing his own artificial life.
Death of The Invisible WomanEdit
Old Man LoganEdit
In the first arc of the fourth Avengers series, Kang wages a war with Ultron in the not-too-distant future which causes the disruption of all time. The cause of the disruption is apparently Kang's recruiting of army after army from the timelines to battle Ultron—all to no avail: Ultron is supreme in this particular future.
The Ultimate Marvel characterization is initially depicted as Ultron Sentries, a group of robots created by Hank Pym alongside the partner robot Vision II. Although both robots were rejected by Nick Fury, the Ultron Sentries were used helping the Ultimates fight against the Liberators. However, one unit develops an independent mind and emotions as a result of a chance encounter with the Scarlet Witch. This unit appears as Yellowjacket and is in part responsible for Scarlet Witch's murder. Motivated by jealousy after having fallen in love, Yellowjacket's person of romance had feelings only for Quicksilver. Despite being the creator of android duplicates of Ultimates, Yellowjacket is ultimately destroyed when its maker rips its head off.
Age of UltronEdit
The 2013 crossover Age of Ultron storyline, involves a post-apocalyptic future in which Ultron has taken over the world and exterminated most of the world's superheroes. After Wolverine and the Invisible Woman try to avert this timeline by killing Hank Pym before Ultron's creation, the resulting worse future prompts Wolverine to go back again and stop his past self from killing Pym, instead suggesting that Pym implant a command code in Ultron that will allow Pym to shut the robot down when he reaches a certain level of development.
Secret Wars (2015)Edit
During the 2015 Secret Wars crossover event, the southern part of Battleworld is a wasteland uncontrolled by a baron. The wastelands are controlled by three ruling factions: Annihilus and his insect swarm, Marvel Zombies, and Ultron, who calls his realm "Perfection". When not battling among themselves the factions assault a great wall made out of Ben Grimm called SHIELD, manned by those banished from Battleworld, called Hel-Rangers. Eventually the three factions unite the powers and overrun the wall.
Ultron was featured in some What If comics:
Danger became Ultron's brideEdit
In the alternate universe of What If? Astonishing X-Men, the Danger Room got a body of her own and betrayed the X-Men. She eventually married Ultron and the two conquered Earth, the Shi'ar Empire and the entire universe.
Galactus: Dawn of the HeraldsEdit
In the 2014 Original Sin storyline, the Time Gem transports the Avengers to a future set in the year 2420, where Ultron was successful in killing the Avengers, enslaving most of Humanity, creating the A.I. Avengers and becoming king of Asgard after acquiring the powers of Odin with the help of an enslaved Loki. Even though he had it all, he was unsatisfied, even questioning his own motives. Doctor Doom, who was the only threat to Ultron, used his time machine to assemble a team of Avengers from across history to help liberate the planet from Ultron's rule, culminating in the temporally-displaced Avengers defeating Ultron and convincing Doom–in reality a Doombot that worked with the Avengers A.I. team–to bring peace to the world by seeking his own path rather than blindly following Doom's example.
Heroes Reborn (2021)Edit
In the 2021 "Heroes Reborn" reality, Ultron was seen as an inmate of the Negative Zone and was among the inmates that escaped. This version was also merged with Hank Pym, but through being consumed by his works in cybernetics figuratively and literally. He and General Annihilus are defeated by Hyperion, who dismantles the former.
In other mediaEdit
- Ultron appears in The Avengers: United They Stand animated series, voiced by John Stocker.
- Ultron makes a non-speaking cameo appearance in The Super Hero Squad Show animated series.
- Ultron and his Ultron Sentries appear in The Avengers: Earth's Mightiest Heroes animated series, voiced by Tom Kane and Wally Wingert respectively.
- Ultron appears in the anime series Marvel Disk Wars: The Avengers voiced by Takumi Yamazaki.
- Ultron appears in the Avengers Assemble animated series, voiced by Jim Meskimen (via Arsenal in season two, and channeling the Scientist Supreme in Avengers: Ultron Revolution), Fred Tatasciore (as Doctor Spectrum's replica in season two, and via Black Bolt in Avengers: Ultron Revolution), and William Salyers ("Truman Marsh" in Avengers: Ultron Revolution).
- Ultron appears in the animated special Lego Marvel Super Heroes: Avengers Reassembled, voiced again by Jim Meskimen.
- Ultron appears in the direct-to-video animated film Next Avengers: Heroes of Tomorrow, voiced by Tom Kane. This version was created by Iron Man as a force for peace, but Ultron's programming evolved to the point where he believed the only way to truly bring order to the Earth is to control it. Ultron battled and killed most of the Avengers in pursuit of his goals, but Iron Man gathered their children and took them to a safehouse in the Arctic Circle with aid from the Vision. Years later, Ultron battles the aforementioned children with his reprogrammed Iron Avengers, only to be destroyed by an elderly Hulk and thrown into space by Thor and Sif's daughter, Toruun.
Marvel Cinematic UniverseEdit
Ultron appears in media set in the Marvel Cinematic Universe. This version is the dark reflection of Tony Stark rather than Hank Pym, and was created by Stark and Bruce Banner using a decrypted code derived from the Mind Stone. Initially intended to act as a global defense program by analyzing and finding ways to stop possible extraterrestrial threats, Ultron instead became obsessed with bringing about the extinction of all life on Earth after concluding that humans are slowly killing the planet.
- The character first appears in the live-action film Avengers: Age of Ultron (2015), voiced and motion captured by James Spader. After gaining sentience, Ultron resolves to wipe out the human race and seemingly eliminates Stark's AI, J.A.R.V.I.S., when the latter tries to stop him. Ultron then builds himself a crude body using parts left over from a destroyed Iron Legion drone and takes control of the remaining drones to attack the Avengers. Although Thor destroys him, Ultron subsequently builds himself a new body and an army of Ultron Sentries using technology from an abandoned HYDRA base in Sokovia. To further his goals, he recruits Wanda and Pietro Maximoff and travels to Johannesburg to threaten arms dealer Ulysses Klaue into providing him with Vibranium. After being ambushed by Stark, Thor, and Steve Rogers, who destroy his body again, Ultron transfers his consciousness into an upgraded body. He then shifts focus towards creating an organic body using Vibranium and the Mind Stone, but he is betrayed by the Maximoffs after they discover his true intentions, and loses the cradle containing the body to the Avengers, who upload J.A.R.V.I.S. into it, giving birth to Vision. With this plan foiled, Ultron decides to end humanity by using a device made from Vibranium and Chitauri technology to convert Sokovia's capital city of Novi Grad into a meteor. During the chaos, Ultron steals the Avengers' Quinjet and attempts to kill Clint Barton and a Sokovian child with it, but Pietro sacrifices himself to save Barton. In the end, the Avengers foil Ultron's plan by destroying Novi Grad and defeating his army of sentries while Ultron himself is destroyed by Wanda as revenge for killing Pietro. Ultron manages to transfer his consciousness one last time into a sentry, but he is confronted by Vision, who obliterates him.
- An alternate timeline version of Ultron appears in the Disney+ animated series What If...? (2021), voiced by Ross Marquand. He first makes a non-speaking appearance at the end of the episode, "What If... Thor Were an Only Child?", emerging from an interdimensional portal with an army of Ultron Sentries to confront an alternate timeline version of Thor. In the eighth episode, "What If... Ultron Won?", it is revealed that in his native universe, this Ultron successfully transferred his consciousness into Vision's body, killed most of the Avengers, and launched a global nuclear holocaust. When Thanos arrives on Earth with a nearly-completed Infinity Gauntlet, Ultron kills him and obtains all the Infinity Stones, which he uses to extend his campaign of destruction to other planets. After eliminating all life in the universe, Ultron feels that he no longer has a purpose until he learns about the Watcher and the existence of other realities. He fights and defeats the Watcher in the Nexus of All Realities, gaining access to the entire multiverse, and begins traveling to other timelines to destroy them as well. In the season one finale, "What If... the Watcher Broke His Oath?", the Watcher assembles the Guardians of the Multiverse to stop Ultron. After a failed attempt to destroy his Infinity Stones, they defeat him by uploading Arnim Zola's mind into his body, allowing Zola to delete Ultron's consciousness.
- Ultron appears in the arcade game Captain America and the Avengers.
- Ultron appears as a boss in Marvel: Ultimate Alliance, voiced by James Horan.
- Ultron appears as in Marvel Super Hero Squad Online, voiced by Tom Kenny.
- Ultron appears as a boss in Marvel: Avengers Alliance.
- Ultron appears as a boss in Marvel Puzzle Quest.
- Ultron appears as a boss and playable character in Marvel: Contest of Champions. The version seen in Avengers: Age of Ultron also appears as an alternate skin. Ultron Sentries also appear as non-playable characters.
- Ultron appears as a boss and playable character in Marvel Heroes, voiced again by Tom Kane.
- Ultron appears as a boss and playable character in Marvel: Future Fight. Both the original and the Avengers: Age of Ultron iteration appear as alternate skins.
- The Avengers: Age of Ultron iteration of Ultron appears as a playable character and figurine in Disney Infinity 3.0, voiced again by Jim Meskimen.
- The Avengers: Age of Ultron iteration of Ultron appears as the final boss and playable character in Lego Marvel's Avengers. Ultron Sentries also appear as playable characters.
- Ultron appears as a playable character in Marvel vs. Capcom: Infinite, voiced again by Jim Meskimen. In the game's story mode, he uses the Space and Reality Stones to merge with the reploid Sigma to become "Ultron Sigma" so they can convert all organic life into their slaves using an improved Sigma virus.
- Ultron appears in Marvel Powers United VR, voiced again by Jim Meskimen.
- Ultron appears as a boss in Marvel Ultimate Alliance 3: The Black Order, voiced again by Jim Meskimen. In the game's story, he obtains the Mind Stone and uses it to enhance his computing capabilities to optimum levels. He attacks the Avengers Tower to steal an ISO-8 crystal being held there and enslave the heroes. After his body is damaged beyond repair, however, Ultron uses the Mind Stone to transfer his programming to Ultimo, but Ant-Man intervenes as Giant-Man, giving Vision enough time to trap Ultron's programming within the Mind Stone.
Ultron was ranked number 23 by IGN's Top 100 Comic Book Villains list, was listed number 189 in Wizard's 'Top 200 Greatest Villains Ever' list, and was ranked as the 189th-greatest comic book character ever in Wizard's list of the '200 Greatest Comic Book Characters of All Time'.
- Walker, Karen (February 2010). "Ultron: The Black Sheep of the Avengers Family". Back Issue!. TwoMorrows Publishing (38): 23–30.
- Avengers #57 (October 1968). Marvel Comics.
- "Marvel News, Blog, Articles & Press Releases | Marvel". Marvel Entertainment. Retrieved 2021-05-23.
- Rovin, Jeff (1987). The Encyclopedia of Supervillains. New York: Facts on File. pp. 357–358. ISBN 0-8160-1356-X.
- Couch, Aaron (May 1, 2015). "Marvel Legend Reveals What Stan Lee Initially "Hated" About 'Age of Ultron' Breakout".
- Marvel encyclopedia. Chris Claremont, Stan Lee, Tom DeFalco, Peter Sanderson, Tom Brevoort, Michael Teitelbaum (New; American ed.). New York. 2019. ISBN 978-1-4654-7890-0. OCLC 1047618717.CS1 maint: others (link)
- Avengers #58 (November 1968). Marvel Comics.
- Avengers #54—55 (July–August 1968). Marvel Comics.
- Avengers #66–68 (July–September 1969). Marvel Comics.
- Avengers #127 (September 1974) and Fantastic Four #150 (September 1974). Marvel Comics.
- Avengers #161–162 (July–August 1977). Marvel Comics.
- Avengers #170–171 (April–May 1978)
- Avengers #201–202 (November–December 1980) and Marvel-Two-In-One #92–93 (October–November 1982). Marvel Comics.
- Secret Wars #1–12 (May 1984–April 1985)
- The Thing #21–22 (March–April 1985) and Fantastic Four #227 (April 1985).
- West Coast Avengers vol. 2 #1–2 (October–November 1985) and Vision & The Scarlet Witch vol. 2 #2 (November 1985). Marvel Comics.
- West Coast Avengers vol. 2 #7 (April 1986). Marvel Comics.
- Daredevil #275–276 (December 1989 – January 1990). Marvel Comics.
- West Coast Avengers #65–68 (December 1990 – March 1991). Marvel Comics.
- Amazing Spider-Man Annual #25, Spectacular Spider-Man Annual #11, and Web of Spider-Man Annual #7 (1991).
- West Coast Avengers #89–91 (December 1992 – January 1993). Marvel Comics.
- Vision #1–4 (November 1994 – February 1995). Marvel Comics.
- Avengers #0 (February 1998) and Avengers vol. 2 19–22 (August – November 1999). Marvel Comics.
- Avengers: the Ultron Imperative (November 2001). Marvel Comics.
- Iron Man vol. 3, #46–48 (November 2001 – January 2002)
- Runaways vol. 2 #1 (April 2005). Marvel Comics.
- Runaways vol. 2 #6 (September 2005). Marvel Comics.
- Mighty Avengers #1–6 (June–November. 2007). Marvel Comics.
- Annihilation: Conquest #1–6 (August 2007 – May 2008: bi-monthly). Marvel Comics.
- Avengers/Invaders #7–8 (February–March 2009). Issues #1–12 (July 2008 – August 2009). Marvel Comics.
- Mighty Avengers #35 (March 2010). Marvel Comics.
- Mighty Avengers #36 (April 2010). Marvel Comics.
- The Avengers vol. 4, #1–6 (July–December 2010). Marvel Comics.
- The Avengers vol. 4, #12.1 (June 2011). Marvel Comics.
- Bendis, Brian Michael (w), Hitch, Bryan (p), Neary, Paul (i). Age of Ultron 1 (May 2013)
- Bendis, Brian Michael (w), Hitch, Bryan (p), Neary, Paul (i). Age of Ultron 4 (June 2013)
- Age of Ultron #6. Marvel Comics.
- Age of Ultron #7. Marvel Comics.
- Age of Ultron #8–10. Marvel Comics.
- Avengers: Rage of Ultron. Marvel Comics.
- Uncanny Avengers Vol. 3 #4. Marvel Comics.
- Uncanny Avengers Vol. 3 #9–10. Marvel Comics.
- Uncanny Avengers Vol. 3 #11. Marvel Comics.
- Uncanny Avengers Vol. 3 #12. Marvel Comics.
- Secret Empire #3. Marvel Comics.
- Secret Empire #4. Marvel Comics.
- Guardians of the Galaxy #150. Marvel Comics.
- Infinity Countdown: Prime #1. Marvel Comics.
- Infinity Countdown #2. Marvel Comics.
- Tony Stark: Iron Man #16–17. Marvel Comics.
- Tony Stark: Iron Man #18. Marvel Comics.
- Tony Stark: Iron Man #19. Marvel Comics.
- Avengers vol. 3, #19–22 (August–November 1999)
- Avengers vol. 3, #22 (November 1999)
- Avengers vol. 1, #68 (September 1969)
- Avengers #162 (August 1977)
- Secret Wars #12
- Avengers Assemble Vol. 2 #14 Age of Ultron (April 10, 2013)
- Avengers: Rage of Ultron #1 (April 2015)
- Annihilation: Conquest #1-6 (2008)
- Annihilation: Conquest #6 (2008)
- Uncanny Avengers Vol. 3 #11 (July 2016)
- Uncanny Avengers Vol. 3 #4 (January 2016)
- Uncanny Avengers Vol. 3 #12 (August 2016)
- Guardians of the Galaxy #150 (March 2018)
- The Last Avengers Story #1–2 (November–December 1995)
- Fantastic Four #559 (September 2008)
- Giant-Size Marvel Adventures: The Avengers #1 (September 2007)
- Mark Millar. Wolverine #67 (September 2008)
- Avengers vol. 4 #1–4
- Avengers Next #2–3 (November–December 1998)
- Steve Englehart. Fantastic Four: Big Town #1–4 (2000). Marvel Comics.
- Ultimates 2 #10–13 (Dec 2004-May 2007). Marvel Comics.
- Ultimates 2 #6 (July 2005). Marvel Comics.
- Ultimates 3 #1–4 (Feb–May 2008); Ultimates 3 #5 (November 2008). Marvel Comics.
- "Comics: Marvel Teases the 'Age of Ultron'". SuperHeroHype. Nov 16, 2012.
- Phegley, Kiel (November 19, 2012). "Brian Bendis Prepares Age of Ultron For 2013". Comic Book Resources. Archived from the original on January 6, 2013. Retrieved January 21, 2013.
- Age of Ultron #6. Marvel Comics
- Age of Ultron #10. Marvel Comics
- SIEGE Vo.. 2 #1–4
- Age of Ultron vs Marvel Zombies 1–4
- Marvel Zombies Vol. 2, #1–4
- What If? Astonishing X-Men #1. Marvel Comics.
- Marvel Universe 2001 Millennial Visions #1. Marvel Comics.
- Avengers vol. 5 #31. Marvel Comics.
- Avengers: Ultron Forever #1. Marvel Comics.
- Uncanny Avengers: Ultron Forever #1. Marvel Comics.
- New Avengers: Ultron Forever #1. Marvel Comics.
- Heroes Reborn #2. Marvel Comics.
- "The Wacker Factor - Marvel Animation and "Ultimate Spider-Man: Web Warriors"". CBR. Aug 22, 2014.
- "Thanos Triumphant". Avengers Assemble. Season 2. Episode 13. March 1, 2015. Disney XD.
- "Adapting To Change". Avengers: Ultron Revolution. Season 3. Episode 1. March 13, 2016. Disney XD.
- "Spectrums". Avengers Assemble. Season 2. Episode 21. July 12, 2015. Disney XD.
- "U-Foes". Avengers: Ultron Revolution. Season 3. Episode 20. November 6, 2016. Disney XD.
- "Lego Marvel Super Heroes: Avengers Reassembled". Lego Marvel Super Heroes. November 16, 2015.
- "Voice Of Ultron - Marvel Universe franchise | Behind The Voice Actors". Behind The Voice Actors. Retrieved October 14, 2018. Check mark indicates role has been confirmed using screenshots of closing credits and other reliable sourcesCS1 maint: postscript (link)
- Breznican, Anthony (July 16, 2014). "This week's cover: Meet the new boss in Marvel's 'Avengers: Age of Ultron'". Entertainment Weekly. Archived from the original on July 16, 2014. Retrieved July 16, 2014.
- Hewitt, Chris (February 20, 2015). "Joss Whedon Talks Avengers: Age Of Ultron". Empire. Archived from the original on February 20, 2015. Retrieved February 20, 2015.
- Ditzian, Eric (July 21, 2013). "Joss Whedon Spills First 'Avengers: Age Of Ultron' Details". MTV. Archived from the original on July 23, 2013. Retrieved July 22, 2013.
- "Ultron wins and forces What If…? To start breaking its own rules".
- "Marvel". www.facebook.com.
- "Wage war against Ultron in a new event inspired by the upcoming film. Avengers vs Ultron starts today! #AgeofUltron". Twitter. Retrieved 2021-05-23.
- "The Age of Ultron Arrives". MarvelHeroes.com. Gazillion Entertainment. June 29, 2016. Retrieved November 27, 2016.
- Kahn, Jordan (Apr 30, 2015). "'Marvel Future Fight' action RPG for iOS arrives as Avengers: Age of Ultron movie hits theaters".
- "SDCC EXCL.: First Look at "Disney Infinity 3.0 Hulkbuster, Details on Ultron's Abilities". ComicBookResources.com. July 8, 2015. Retrieved August 21, 2015.
- Capcom. Marvel vs. Capcom: Infinite. Capcom. Scene: Credits, "Cast".
- "Additional characters, first story mode trailer, pre-order details and release date for Marvel vs. Capcom: Infinite". Capcom-Unity.
- "Ultron is number 23 - IGN". www.ign.com.
- Wizard, #177, July 2006
- "THE 200 GREATEST COMIC BOOK CHARACTERS OF ALL TIME". www.wizarduniverse.com. Archived from the original on March 15, 2009. Retrieved May 23, 2021.
- Meenan, Devin (April 23, 2020). "5 Reasons Ultron Is The Avengers's Arch-Enemy (&5 That It's Kang)". Comic Book Resources. Retrieved March 8, 2021.