Metallo (/məˈtæloʊ/) (John Corben) is a fictional supervillain appearing in comic books published by DC Comics, commonly as an adversary of Superman.

Metallo is depicted as a cyborg with a kryptonite power source in his heart, which he uses as a weapon against Superman. In 2009, Metallo was ranked as IGN's 52nd Greatest Comic Book Villain of All Time.[1]

A robotic man with a green glow coming from his chest
Metallo in Action Comics Annual #10 (March 2007)
Art by Art Adams and Alex Sinclair
Publication information
PublisherDC Comics
First appearanceAction Comics #252 (May 1959)
Created byRobert Bernstein
Al Plastino
In-story information
Alter egoJohn Corben
Roger Corben
Team affiliations
Notable aliasesMetal Zero (Metal-0)
Abilitiescurrent: Bionic Surgery
  • Superhuman strength, speed, stamina, and durability
  • Kryptonite power source
  • Imperviousness to pain
  • Hologram projection
  • Computer interaction
  • Immortality
  • Mechanical engineering
  • Technomorphing
  • Computer brain
  • Interchangeable Kryptonite
  • Energy signature manipulation

Publication history

Metallo was created by Robert Bernstein and Al Plastino and debuted in Action Comics #252 (May 1959). John Corben and Metallo first appeared in the daily newspaper strip called "The Menace of Metallo", which ran from 15 December 1958 to 4 April 1959.

There was an earlier "Metalo" who appeared in World's Finest #6 (Summer 1942). This was just a man who discovered the most powerful metal on earth and invented a strength serum.

Fictional character biography

The Golden Age Metalo

The Golden Age Superman battled an unnamed scientist calling himself Metalo who wore a powered suit of steel armor.[2] Years later, Superman encountered the villain a second time.[3] Metalo (now named George Grant) had a new suit of armor and had also taken a serum to increase his strength to superhuman levels. He exposed Superman to a ray that reduced his power significantly giving Metalo superior strength in their first battle. Superman engaged in a lengthy regimen of exercise and training to restore his powers and returned to easily defeat Metalo.

First Silver Age Metallo

Superman family217
Cover of Superman Family #217 (April 1982). Artwork by Rich Buckler (pencils) and Dick Giordano (inks).

A different Metallo appeared as Jor-El's robot to battle Superboy in Superboy #49 (1956).

John Corben

John Corben was originally a journalist (and secretly a thief and murderer) who had just committed what he thought was the perfect murder. While fleeing from the scene of the crime, he suffered a near-fatal accident that mangled his body beyond repair. An elderly scientist, Professor Vale, happened to come upon him and used his scientific skill to transfer Corben's brain into a robotic body covered by a flesh-like artificial skin. Corben discovered that his power source, a capsule of uranium, would only last a day, but was told by Vale that kryptonite would provide him an indefinite power supply.[4]

After obtaining a job with the Daily Planet, Corben briefly tried to romance Lois Lane, while deciding that he would use his powers to eliminate Superman, the one person who might expose his criminal deeds. After setting a kryptonite death-trap for Superman, Corben stole what he thought was another sample of kryptonite from a museum as a new power supply, not knowing it was a fake prop; this mistake caused him to die, just as he was about to kill Lois Lane for discovering that he was not Superman (as he had pretended to be, being super-strong and invulnerable as a cyborg). Superman eventually escaped from the kryptonite trap and arrived just after Metallo (John Corben) had died. [5]

The Bronze Age Metallo

A second Metallo, John's brother Roger Corben, debuted in Superman #310 (April 1977) by Curt Swan and Martin Pasko. This Metallo was created by a secret organization named "SKULL" that transferred Roger's brain into a new robotic body so that he could get revenge on Superman for his brother's death. Like the previous Metallo, this one was also powered by kryptonite, although this newer version wore orange and green armor, as well as a green helmet to conceal the "new" identity he had created using plastic surgery (which turned out to be WGBS Staffer Martin Korda).

This version of Metallo returned throughout the Bronze Age. His final appearance was featured in Alan Moore's "Whatever Happened to the Man of Tomorrow?" (1986).[6]

The Modern Age Metallo

Metallo as drawn by John Byrne in Superman (volume 2) #1 (January 1987).

After John Byrne rewrote Superman's origins in the 1986 miniseries The Man of Steel, Metallo was also given an altered backstory.

In this version, John Corben was a small-time con man who was fatally injured in a car crash, but thanks to luck, Professor Emmet Vale happened to pass by. Professor Vale was a pioneer in robotics and erroneously believed that Superman was the first in a wave of superpowered Kryptonian invaders after recovering Superman's ship and mistranslating Jor-El's message to his son. Vale transplanted Corben's brain into a robotic alloy body, which was powered by a two-pound chunk of kryptonite, and instructed him to kill Superman. Metallo, now Corben's new moniker, thanked Vale by snapping his neck and killing him.

Despite ignoring Vale's commands, Metallo came into conflict with Superman on various occasions, largely due to his continued activities as a petty thug. Metallo later lost his kryptonite heart to Lex Luthor, though back-up life support systems allowed him to reactivate himself and escape. He remained a thorn in Superman's side and was powerful enough to cripple the Doom Patrol. Still, the Indian-born hero who called herself Celsius did blow him apart with her thermal powers. Metallo later received a major upgrade via an unholy bargain with the demon Neron. As a result, Metallo could morph his body into any mechanical shape he could imagine (turning his hands into guns or "growing" a jet-pack from his back) and project his consciousness into any technological or metallic device. He could also grow to monstrous size. During one battle, his gigantic fists were separated and later turned into housing by other superheroes. In another incident, Metallo was rendered more insane by the Joker and used his height to destroy an elevated train of commuters.

As Superman and others learned on various occasions, the most effective way to neutralize Metallo was to remove his (largely invulnerable) head and isolate it from other metallic items.

In Superman/Batman #2 (November 2003), Lex Luthor fabricated evidence implicating John Corben as the criminal who shot and killed Thomas and Martha Wayne, the parents of Bruce Wayne.[7]

Superman: Secret Origin

In the 2009-10 miniseries Superman: Secret Origin, (which retells the origins of Superman and his supporting cast), Metallo is Sgt. John Corben. He serves under Lois Lane's father, General Sam Lane. General Lane is trying to push his daughter, Lois into a relationship with Corben. Though they had one date, she does not return his feelings for her. Corben is next seen signing up for a military option to neutralize Superman (ostensibly with the help of a powersuit built by LexCorp). However, in his first encounter with Superman, a stray bullet hit the Kryptonite rock inside the suit, leading to a disastrous energy cascade within the battlesuit which almost killed Corben. Through the efforts of Lex Luthor and a crack team of scientists, Corben survived, part-man, part-machine, with the Kryptonite rock functioning as his new heart. Driven by a hatred for this alien invader, he became the villain known as Metallo. Metallo, now wearing a green, orange and red armor, subsequently attacked Superman again in a rampage which endangered not only the citizens of Metropolis, but his own fellow soldiers. He was defeated by Superman once more.

The New 52

Project: Metal-0

In September 2011, The New 52 rebooted DC's continuity. In this new timeline, John Corben is under the command of General Sam Lane.[8] General Lane tells him to talk to Lois Lane, when she keeps questioning where Superman is. It is implied that Corben and Lois once had a relationship. When Superman escapes from the military's custody, Corben is seen enlisting in what appears to be a military project co-opted by Lex Luthor, General Lane, and young scientist Doctor John Henry Irons – "Project Steel Soldier" – to go against Superman.[9] Corben is seen in the "Metal 0" suit with scientists, mostly Irons, trying to help him. He continues believing that he did it for the affection of Lois and when the robotic needles are in his head, Metallo takes control and his heart bursts. Metallo then screams "Where is Superman?"[10] Although the attack on Superman succeeds, Metallo is revealed to have been subverted by Brainiac as part of his own plans, and his rampage is defeated when Doctor Irons uses an armoured suit of his own to fight Corben and upload a computer virus that he designed in the event of such a situation.[11] After escaping, and still under Brainiac's control, Corben continued to fight Superman[12] until he was able to reason with Metallo and to fight Brainiac's influence because of his feelings for Lois Lane. In doing so, Corben attacked Brainiac until Superman could defeat the villain, but he subsequently fell into a coma and was taken back by the army.

Forever Evil

It was revealed that the armor was keeping him alive thanks to alien technology, but without a heart he would soon die. General Lane told his scientists to find a way to save him since he helped to save Metropolis. He was later given a kryptonite heart to keep him alive since it was the only energy compatible with his cybernetics.[13] After 31 months in a vegetative state, Corben was brought back with a shard of kryptonite to active duty in the U.S. Army. Since his actions caused the deaths of hundreds of civilians, General Lane tried to kill him by exploding the plane he was being carried in. He survived and sought vengeance against Lane at his base, only to be confronted by an upgraded soldier like himself "Metal-2.0". When Corben proves too much, Metal-2.0 activates his self-destruct mechanism, hoping to destroy Corben along with himself. However, he is saved by the Scarecrow and offered a place in the Secret Society of Super Villains, now calling himself Metallo. In "Forever Evil", Ultraman rips off his kryptonite heart, because of his addiction to the mineral.[14]


Corben was eventually seen again incarcerated in John Henry's isolated super-prison, eventually drafted by the U.S. Government again shortly afterwards, but is only brought back into their service by compunction from Lois once more (who was secretly under Brainiac's influence).[15] Given the present danger he represents as Doomsday was taking him over, Lois convinced Metallo to run Superman down in a kryptonite bombing run and was summarily incinerated by the blast; all that was left of him being the Metal Zero exo-mantel fused to his now-charred remains.[16] Lois, now completely subsumed by the Brainiac consciousness inside of her, is able to recreate Corben's essential self by downloading her memory of the man he was into what was left of his old Metal-0 suit, said facsimile of the now-deceased military sergeant a loyal echo of whom he once was, obedient to her every whim.[17] He would serve as her bodyguard as Dox's influence compelled her to cripple military defense systems around the world. He would immediately switch sides once Lois is freed from his control, however, and aid her in combating the alien threat to their world.[18] As Superman and Lois departed to stop Brainiac, Metallo was left on Earth to defend Metropolis in their stead.[19] After the crisis is resolved, Corben is later seen standing guard over Metropolis with Krypto, seemingly contented with his current position.[20]

Truth/Savage Dawn

In the wake of Superman's identity being outed to the world as the hero began losing his powers, many an investigation was undertaken into his identity, contacts and motives by collective interests. Seeing as her life was in more danger than ever before, Metallo stuck close to his love as she went and did some investigating of her own in the meantime.[21] While Vandal Savage made his play for ultimate power, Lois and Metallo were close by on the scene where Superman kept his warship from crushing a small town. While aiding Superman, as Lois refused to leave his side during the battle with Savage's empowered progeny, John's bionic shell was badly damaged. Looking to make good with all the bad in his life, he willingly offered his kryptonite heart to Superman (the depowered hero having discovered a treatment for his loss of powers that essentially involved giving himself chemotherapy with kryptonite), knowing full well that he could not survive without it.[22]

DC Rebirth

Powers and abilities

Metallo’s metallic body offers him a high degree of protection from physical and energy attacks. He has enhanced abilities and no longer needs to eat, sleep, or breathe. His brain is hermetically sealed inside a shielded alloy skull that has its own power supply. When he was first created, he was powered by a kryptonite heart; losing that, he subsisted on plutonium instead. Additionally, because of his cyborg body, Metallo possesses superhuman strength and speed, enough to pose a challenge and even a threat to opponents such as Superman (in that case, he also takes advantage of the weakening power of kryptonite besides his own strength).

Over the course of his criminal career Metallo's body would be decimated constantly by various circumstances. As such he would receive numerous upgrades or whole new chassis' to replace his damaged parts, such as by the obscure supervillain organization Cerberus, which modified him with a vastly superior body, one with lead-lined skull-plating and an anatonic layer that even Superman could not demolish.[23] This gave him greatly enhanced strength and durability, coupled with moderate mechanical regeneration to repair internal damage.[24] He was later outfitted with a larger LexCorp tech body, which gave him laser vision and further augmented his physical abilities.[25] Soon after it was destroyed, Corben had received a new body from fellow Kryptonite-powered supervillain Conduit; which gave Metallo radioactive blasts from his hands and could utilize geomagnetism to make him physically immovable, even by the Man of Steel, so long as he stood on solid ground or flooring within a building complex.[26]

Metallo would eventually sell his soul (or what was left of it) to the archdemon Neron in return for increased power,[27] gaining the abilities to mentally control and absorb any mechanical or metal object he focuses on and transforming any technology (himself included) into an extension of his exo-skeleton (an ability similar to the Cyborg Superman).

In experimenting with his newfound abilities, Metallo found he could alternate differing energy frequencies for harnessing and redistributing it from various power sources.[28] Brainiac 13 upgraded Metallo to tap into various light spectra to better utilize his kryptonite-charged abilities. His mechanical body was also upgraded to be able to grow towards monolithic proportions.[29] He is also occasionally portrayed as having a liquid metal-based endoskeleton, possessing the ability to morph parts of his body, specifically his limbs, into different weapons or tools, such as chainsaws, shovels, hammers, etc. While not a genius like Lex Luthor or Brainiac, Corben's time spent with machines has given him a gifted understanding of how they work, enabling him to tinker with their mechanical functions even before gaining his technomorphing capabilities.[30]

During the publishing of Salvation Run it is revealed Metallo also boasts a high-calculus cyber-mind with which to run the numbers of possible and probable outcomes and success scenarios through. In the previous continuity, the Pre-Flashpoint Lex Luthor modified Corben to holster and utilize different forms of kryptonite; boasting mutagenic red-k, inverted blue-k and lastly, artificial depowering gold-k on top of the green-k he already possessed.[31] He could even power a great many anti-Kryptonian armaments developed by Luthor through it.[32]

Other versions

  • Metallo appeared in Superman: Red Son as a project (among many others) invented by Dr. Lex Luthor for the US government to combat Superman, who serves Communist Russia.[33]
  • Marvel Comics cover-featured an unrelated character named Metallo in Tales of Suspense #16 (April 1961).[34]
  • The Silver Age Metallo appears in the series Justice.[35]
  • In Art Baltazar's Superman Family Adventures, Jack Corben was an astronaut who became sick after flying through a kryptonite asteroid field. Lex Luthor manipulates him into believing that it was all Superman's fault and that he can help Jack if Jack defeats Superman. Jack gets the upper hand in the fight with his kryptonite, but the Superman family is aided by John Henry Irons into trapping Jack in a lead case. This version is not a cyborg, but instead has a large metallic armor that contains all his kryptonite poisoning.[36]

In other media



  • In the second-season Superboy episode "Metallo", Roger Corben (played by Michael Callan), a bungling bank robber, tries to rob an armored car even though he is having extreme chest pains. Superboy arrives and apprehends the bank robber, but the small-time crook has a heart attack and is taken to a hospital. After a lengthy recuperation, he escapes by murdering his doctor. After he leaves, he suffers another heart attack and his car crashes into a tree and explodes. The police assume he is dead, but journalist Clark Kent is not so sure. Meanwhile, Corben is alive. He falls into the hands of a mentally-unbalanced doctor who turns him into more of a machine than human being and replaces his failing human heart with the radioactive power source kryptonite. As Metallo, Corben made several more appearances in the Superboy series, specifically in the episodes "Super Menace", "People Vs. Metallo", "Threesome" (parts 1 and 2), and "Obituary for A Super-Hero".
  • In the second-season Lois & Clark episode "Metallo", Johnny Corben (played by Scott Valentine) was Lucy Lane's boyfriend and, unknown to her, a petty criminal. Not only does he have a criminal past, but he's hitting up Lucy for money. Lois Lane tries to convince her sister that Johnny's no good, but Lucy will hear none of it. Johnny was shot when a holdup went wrong and having fallen into the hands of Dr. Emmett Vale, a former Lexcorp scientist with the help of his brother Rollie Vale, rebuilt Johnny into a Kryptonite-powered cyborg named Metallo and begins causing havoc in Metropolis. And, since Metallo is powered by Kryptonite, even Superman can not stop him. When Metallo kidnaps Clark to use him as bait to lure Superman, it's up to Lois and Jimmy Olsen to save Clark, but nothing can save Metallo after a final run-in with Superman, who, now aware of his kryptonite power source, keeps his distance, using his super breath and heat vision to defeat him. Emmett is captured, but Rollie manages to escape with Metallo's kryptonite, leaving Metallo dead.
Brian Austin Green as John Corben on Smallville
  • In Smallville, John Corben/Metallo (played by Brian Austin Green in season nine, uncredited actor in season ten) appears in the season premiere "Savior" as a former war reporter working at the Daily Planet alongside Lois Lane.[37] In "Metallo", he is revealed to despise the Blur (Clark Kent) because the latter rescued a prisoner that went on to murder Corben's sister. After being hit by a truck, he is experimented upon by Major Zod's Kandorian soldiers and wakes up with bionic appendages, including a kryptonite-powered artificial heart, and targets the Blur in revenge for his sister. Clark, though weakened by the kryptonite radiation, uses a lead plate to defeat Corben, who is recovered by LuthorCorp CEO Tess Mercer. In "Upgrade", Corben's prior insanity was explained as a flaw in his kryptonite heart and Tess' scientists repair him and turn him into a mindless weapon. Corben defeats Zod and a red kryptonite-infected Clark, regaining his free will after the control chip is removed from his head. Corben goes underground after receiving from Lois a red kryptonite heart. Despite regaining his sanity and parting on good terms with Lois and Clark, he is back to being a villain with a green kryptonite heart in "Prophecy", as a part of Toyman's team of villains, "Marionette Ventures": he is assigned to target Supergirl. He appears in the comic book coninuation Smallville: Season Eleven which explains his character change as his biology rejecting the red kryptonite heart and he became a mercenary, tasked by a tyrannical dictatorship in rural country to subdue and eliminate a protector of the rebel forces; who was secretly the Kryptonite empowered Lana Lang. His new Green-K heart given to him by Toyman, had the ability to absorb meteor rock energy signature's serving to make him that much more powerful. When he absorbed the kryptonite powered nanites in Lana Lang's Prometheus augmented biology, they gave him the ability to reach out and assimilate any metallic or mechanical constructions within range, similar to his comic book appearance's technomorphing abilities. He was finally stopped and incarcerated by the U.S. government when Lana and Lois managed to incapacitate him by removing his power source.
  • There are five different versions of Metallo who appear in Arrowverse:
    • John Corben appears in the episode "The Adventures of Supergirl," portrayed by Frederick Schmidt.[38] He was initially hired by the then-arrested Lex Luthor to assassinate his sister Lena Luthor to prevent her from rebranding Luthor Corp. His first two attempts to kill Lena fail due to the intervention of Supergirl and Superman and his third attempt is foiled by Alex Danvers and Lena who shoots Corben when he tries to take Alex hostage. While being sent to the hospital, he is intercepted by Project Cadmus who perform an experiment to convert him into Metallo. After meeting Project Cadmus' leader (who was later revealed to be Lex Luthor's mother Lillian), Metallo is unleashed on Supergirl and Superman. While Superman fought the other Metallo, Supergirl received help from Alex Danvers to remove his Kryptonite heart. Afterwards, Supergirl used Metallo's eyes to speak to Project Cadmus to let them know that she will find them. He later is busted out of jail via a smuggled synthetic Kryptonite "heart" brought in by Hank Henshaw (who also doctored the security footage to make it seem as though Lena Luthor had been the one who smuggled in the heart as part of an elaborate plot to both frame Lena and force her to aid her mother). However, because the synthetic Kryptonite was unstable, Corben was slowly undergoing a radiological meltdown, and ultimately perished via self-destruction despite Supergirl's best efforts to save him.
    • Aside from Corben, Project Cadmus scientist Dr. Gilcrist (portrayed by Rich Ting), was also subjected unwillingly to be the second Metallo model by Lillian Luthor. During his fight with Superman, Martian Manhunter removed Dr. Gilcrist's Kryptonite heart shutting him down.
    • An entirely robotic Metallo (Metallo-X), voiced by Frederick Schmidt, features in the four-part crossover story "Crisis on Earth-X", linking the shows Supergirl, Arrow, The Flash and Legends of Tomorrow. It appears as the servant of a Nazi regime led by Oliver Queen and Kara Zor-El, and takes the primary heroes of the aforementioned shows captive. It is eventually destroyed by the combined powers of the shows' characters, The Flash, Black Canary, Killer Frost, Citizen Cold, the Ray, the Atom, Firestorm, Heat Wave, Zari, Vibe, and Vixen. This marks the first live-action representation of Metallo's appearance in the comics, all previous media having depicted him as mostly human-looking.[39]
    • Another version of Metallo appears in Supergirl, this version being Otis Graves (played by Robert Baker). He first appeared in the season 4 premiere "American Alien" as human, and was so until his apparent death (along with his sister Mercy), in the episode "Ahimsa" at the hands of a Hellgrammite. He is then seen in the episode "O Brother, Where Art Thou?" as alive, but not stated how. It is then revealed in the episode "Crime and Punishment" that Lex Luthor and Eve Teschmacher resurrected him with Kryptonite, in an updated version of the Metallo suit.[40]
    • A fifth Metallo appears in the Supergirl season 4 episode "All About Eve". This version is an unnamed man who guards Eve Teschmacher's lab at National City University


Metallo2 1
Metallo, as depicted in Superman: The Animated Series
  • John Corben/Metallo appears in several animated series set in the DC Animated Universe:
    • He made his debut in Superman: The Animated Series, voiced by veteran actor Malcolm McDowell. John Corben was originally an English criminal-for-hire, who was eventually caught and jailed by Superman. During his time in prison, Corben contracted a rare and fatal disease. His past employer (and the person responsible for Corben being infected by the disease), Lex Luthor, then offered him a new lease on life by transferring his consciousness into a robotic body, and in exchange Corben would kill Superman for Luthor. The android body is made of an indestructible alloy called "Metallo", and is powered by a kryptonite power source to use against the Man of Steel. However, Corben soon learned that his new body had no sense of taste, smell or touch, and this sensory deprivation drove him insane. Realizing he was no longer the man he once was, Corben dubbed himself "Metallo".
    • Metallo returns in the Justice League episode "Hereafter", voiced by Corey Burton. He appears as a member of the Superman Revenge Squad.
    • Malcolm McDowell reprised his role as Metallo in Justice League Unlimited, where he is a member of Gorilla Grodd's Secret Society. He, along with Silver Banshee, are sent on a mission to Skartaris to obtain a large kryptonite rock, but are ultimately defeated by the Justice League. When he attempts to tell the League about the new Secret Society, his brain is fried by a protocol Grodd secretly programmed into him.
  • Metallo appeared in season 5 of the animated series The Batman, voiced by Lex Lang. His kryptonite heart is not in his center, but in the upper left quadrant of his chest. Also, Metallo has a back-up power source and can operate without the kryptonite heart. Metallo was paid by Lex Luthor to kill Superman. Because of the kryptonite, Superman fought a losing battle until Batman and Robin showed up. They managed to get the kryptonite out of Metallo long enough for Superman to recover. After he recovered, Superman defeated Metallo by trapping him in a hydraulic compactor, although it is said that a certain type of battery keeps him alive. His origin is not given.
  • Metallo makes a cameo appearance as one of the villains Superman and Batman take down together in Batman: The Brave and the Bold. Superman is wrestling with Metallo on top of a building when Metallo exposes his kryptonite heart and weakens Superman. Batman comes and uses a grappling hook to pull the kryptonite heart from the center of Metallo's chest. Metallo is then easily beaten by Superman with one punch. His design is like the Bronze Age Metallo although much bulkier than Superman.
  • Metallo appears in the Justice League Action animated short "True Colors". Metallo and Superman fight, while Firestorm, in an attempt to help Superman by turning Metallo's kryptonite heart into lead, turns it into different versions of kryptonite instead, each having different effects on Superman. After Pink Kryptonite turns Superman into a woman, she defeats Metallo, and Firestorm manages to turn his heart to lead.


  • Metallo appears in the animated movie Superman/Batman: Public Enemies, which is based on Jeph Loeb's 2003 comic book story arc of the same name that appeared in the Superman/Batman comic book. In the movie, Metallo is voiced by Scrubs star John C. McGinley.[41] He acts as Lex Luthor's bodyguard who then fights with both Superman and Batman. After they escape him, he is killed by Major Force and his death is used to frame Superman, although a cursory analysis of his body by Batman confirms that he was killed by a radiation blast rather than heat vision.
  • Metallo makes a brief appearance in All-Star Superman. He is seen lifting weights when Lex Luthor, escorted by armed guards, and Clark Kent (who is interviewing Lex Luthor), walk past his glass cell. He looks up when they pass by. Clark Kent seemed to shy away from Metallo's cell since it was not made of lead. This led to Parasite's escape from his cell near Metallo's since Parasite easily absorbed Clark Kent's power from a few meters away. The only reason Superman was not affected by the kryptonite heart was because his overcharged powers made him impervious to it.
  • Metallo appears in the animated film Justice League: Doom, voiced by Paul Blackthorne.[42] He is part of Vandal Savage's Legion of Doom, and is his counterpart to Superman. He is more lighthearted than his fellow Legion members, as shown by his attempts to shake Bane's hand after saying he was a fan of Bane's work, and openly laughing when Vandal Savage presents his plan. He draws Superman's attention by posing as Daily Planet reporter Henry Ackerson and heading to the top of the building itself, claiming to commit suicide. Lois Lane tells Superman about Ackerson, and the Man of Steel flies onto the roof and convinces him not to jump. Metallo then pulls out a gun containing a kryptonite bullet and shoots Superman in the chest and exposing his Kryptonite heart before knocking Superman off the roof and into the streets below. Despite mocking Savage's plan initially, he takes part in it. When the Justice League storms the Hall of Doom, Metallo fights Superman, gaining the upper hand using his kryptonite heart to weaken the Man of Steel. Despite holding off Superman for most of the fight, once Savage launches his missile Superman slammed the plating containing Metallo's heart over the kryptonite, forcibly trapping it before Superman uses his heat vision to decapitate Metallo. Metallo's head was most likely reattached and he was put into custody.
  • Metallo is noted within a newspaper headline as having been defeated by Cyborg Superman in the 2019 animated feature Reign of the Supermen.
  • Metallo was initially considered to be the antagonist in Zack Snyder's Man of Steel sequel, but the project was eventually cancelled in favor of Batman v Superman: Dawn of Justice. It was then revealed that Metallo was going to be a villain in an earlier draft of Dawn of Justice using the body of Wallace Keefe.[43] It was rumored he was going to be in the final fight between Superman, Batman, and Wonder Woman instead of Doomsday but this was never confirmed. His creator, Emmet Vale, appears in Dawn of Justice, portrayed by Ralph Lister.[44][45]

Video games

  • Malcolm McDowell reprises his role as Metallo in Superman: Shadow of Apokolips as the final boss.
  • Metallo appears as one of the bosses in Superman: The New Adventures.
  • Metallo appears as one of the bosses in Superman: The Man of Steel, voiced by Roger L. Jackson.
  • Metallo appears as a recurring boss in Superman Returns, voiced by John Billingsley. In the game, he can assimilate metal cars, light poles, etc., to become a larger and stronger version of himself. Metallo eventually realizes he is defeated and shoots a missile, which Superman stops. Superman then tears out Metallo's power source.
  • Metallo appears in DC Universe Online, voiced by Ryan Wickerham.[46]
  • Metallo appears in Injustice: Gods Among Us. He is an interactive character in Stryker's Island.



  • Dirk Maggs' 1990 BBC Radio adaptation of The Man of Steel included Metallo as a major character. In this version, Corben (played by Simon Treves) was wearing the suit of battle armor that Lex Luthor sent up against Superman. To cover his tracks, Luthor ensured that the suit's psionic interface was unstable, leaving Corben a complete vegetable. He was 'rescued' by Doctor Schwarz, a disgruntled former Lexcorp employee, who had been tracking the capsule that brought the infant Superman to Earth and stole this from the Kents' farm. Having built Corben an android body powered by the capsule's kryptonite power source, they hatched a plan to kill Lex Luthor and Superman. Metallo double-crosses Schwarz and breaks his neck. Kidnapping Lois Lane, Metallo holes up at the power station at Two Mile Island waiting for Superman to face him. During the ensuring battle, Lex Luthor steps in and tears out Metallo's kryptonite heart.


His DC Universe Classics figure is a Collect and Connect figure in Wave 5 featuring the Riddler (Head & Torso), The Atom (right arm), The Eradicator (left arm), Amazo (right leg), and Black Lightning (left leg).

See also


  1. ^ "The Top 100 Comic Book Villains". IGN. 2009. Retrieved 2017-05-10.
  2. ^ World's Finest Comics #6 (Summer 1942)
  3. ^ Superman Family #217 (April 1982)
  4. ^ The DC Comics Encyclopedia. Dorling Kindersley Limited. 2004. p. 201. ISBN 978-0-7566-0592-6.
  5. ^ Action Comics #252, (May 1959)
  6. ^ Superman #423
  7. ^ Superman/Batman #2
  8. ^ Action Comics Vol. 2 #1 (September 2011)
  9. ^ Action Comics Vol. 2 #2 (October 2011)
  10. ^ Action Comics Vol. 2 #3 (November 2011)
  11. ^ Action Comics Vol. 2 #4 (December 2011)
  12. ^ Action Comics Vol. 2 #7 (March 2012)
  13. ^ Action Comics Vol. 2 #8 (April 2012)
  14. ^ Forever Evil #4
  15. ^ Action Comics Vol. 2 #31 (July 2014)
  16. ^ Action Comics Vol. 2 #32 (Aug. 2014)
  17. ^ Superman/Wonder Woman #10 (Sept. 2014)
  18. ^ Action Comics Annual #3 (Sept. 2014)
  19. ^ Action Comics Vol. 2 #34 (Oct. 2014)
  20. ^ Action Comics Vol. 2 #35 (Nov. 2014)
  21. ^ Batman/Superman #23 (Oct. 2015)
  22. ^ Superman Vol. 3 #49 (April 2016)
  23. ^ Adventures of Superman #491 (1987)
  24. ^ Action Comics #678 (1938)
  25. ^ Damage #1 (1994)
  26. ^ Action Comics #710 (1938)
  27. ^ Steel Vol. 2 #21 (November 1995) and Underworld Unleashed #1 (November 1995)
  28. ^ The Adventures of Superman #546
  29. ^ Superman: The Man of Steel #98
  30. ^ Doom Patrol #10 (1987)
  31. ^ Action Comics Annual #10
  32. ^ Action Comics Annual #11
  33. ^ Superman: Red Son #3
  34. ^ "GCD :: Issue :: Tales of Suspense #16". Retrieved 2016-02-19.
  35. ^ Justice #4
  36. ^ Superman Family Adventures #6
  37. ^ Mitovich, Matt (2009-06-17). "Smallville Casting Exclusive: Brian Austin Green Is Metallo! - Today's News: Our Take". Retrieved 2016-02-19.
  38. ^ Abrams, Natalie (August 30, 2016). "Supergirl casts Superman villain Metallo — exclusive". Entertainment Weekly.
  39. ^ Joest, Mick (November 21, 2017). "Two Surprise Arrow-verse Characters Who Will Apparently Get Earth-X Versions In The Big Crossover". Cinema Blend. Archived from the original on November 23, 2017. Retrieved November 22, 2017.
  40. ^ "Crime and Punishment". Arrowverse Wiki. Retrieved 30 April 2019.
  41. ^ "The World's Finest". Retrieved 2011-01-18.
  42. ^ Harvey, James (2011-09-28). "Warner Home Video Announces Voice Cast For "Justice League: Doom" Animated Film". Retrieved 2011-09-27.
  43. ^ "Wallace Keefe". DC Extended Universe Wiki. Fandom Wiki. Retrieved 30 April 2019.
  44. ^ Jay Jayson. "Metallo Was Originally Planned As Villain In Man Of Steel Sequel". Retrieved 2016-02-19.
  45. ^ "Batman V Superman Casting Hints At Possibility Of Metallo For Future DC Comics Films". CINEMABLEND. 2016-03-17. Retrieved 2019-04-14.
  46. ^ DC Universe Online on IMDb
  47. ^ JayShockblast (2018-06-11), LEGO DC Super Villains Gameplay and E3 2018 Interview With Geoff Keighley, retrieved 2019-04-14
Asad Ullah Khan

Asad Ullah Khan is an Indian microbiologist, biochemist and a professor at the Interdisciplinary Biotechnology Unit of the Aligarh Muslim University. He is known for his studies on multidrug resistant clinical strains as well as for the first sighting in India of Aligarh super bug (NDM-4), a variant of New Delhi metallo-beta-lactamase 1 (NDM-1). He is an elected fellow of the Royal Society of Chemistry, the Biotech Research Society, India and the Indian Academy of Microbiological Sciences. The Department of Biotechnology of the Government of India awarded him the National Bioscience Award for Career Development, one of the highest Indian science awards, for his contributions to biosciences, in 2012.


Avibactam is a non-β-lactam β-lactamase inhibitor developed by Actavis (now Teva) jointly with AstraZeneca. A new drug application for avibactam in combination with ceftazidime (branded as Avycaz) was approved by the FDA on February 25, 2015, for treating complicated urinary tract (cUTI) and complicated intra-abdominal infections (cIAI) caused by antibiotic resistant-pathogens, including those caused by multi-drug resistant Gram-negative bacterial pathogens.Increasing resistance to cephalosporins among Gram-(−) bacterial pathogens, especially among hospital-acquired infections, results in part from the production of β-lactamase enzymes that deactivate these antibiotics. While the co-administration of a β-lactamase inhibitor can restore antibacterial activity to the cephalosporin, previously approved β-lactamase inhibitors such as tazobactam and clavulanic acid do not inhibit important classes of β-lactamases, including Klebsiella pneumoniae carbapenemases (KPCs), New Delhi metallo-β-lactamase 1 (NDM-1), and AmpC-type β-lactamases. Whilst avibactam inhibits class A (KPCs, CTX-M, TEM, SHV), class C (AmpC), and, some, class D serine β-lactamases (such as OXA-23, OXA-48), it has been reported to be a poor substrate/weak inhibitor of class B metallo-β-lactamases, such as VIM-2, VIM-4, SPM-1, BcII, NDM-1, Fez-1.


Beta-lactamases are enzymes (EC produced by bacteria that provide multi-resistance to β-lactam antibiotics such as penicillins, cephalosporins, cephamycins, and carbapenems (ertapenem), although carbapenems are relatively resistant to beta-lactamase. Beta-lactamase provides antibiotic resistance by breaking the antibiotics' structure. These antibiotics all have a common element in their molecular structure: a four-atom ring known as a β-lactam. Through hydrolysis, the lactamase enzyme breaks the β-lactam ring open, deactivating the molecule's antibacterial properties.

Beta-lactam antibiotics are typically used to treat a broad spectrum of Gram-positive and Gram-negative bacteria.

Beta-lactamases produced by Gram-negative organisms are usually secreted, especially when antibiotics are present in the environment.

Betaine—homocysteine S-methyltransferase

In the field of enzymology, a betaine-homocysteine S-methyltransferase also known as betaine-homocysteine methyltransferase (BHMT) is a zinc metallo-enzyme that catalyzes the transfer of a methyl group from trimethylglycine and a hydrogen ion from homocysteine to produce dimethylglycine and methionine respectively:

Trimethylglycine (methyl donor) + homocysteine (hydrogen donor) → dimethylglycine (hydrogen receiver) + methionine (methyl receiver)

This enzyme belongs to the family of transferases, specifically those transferring one-carbon group methyltransferases. This enzyme participates in the metabolism of glycine, serine, threonine and also methionine.


Bluvertigo were an Italian alternative rock band from the Milan metropolitan area. Originally formed in 1992 with the name "Golden Age", the band switched to the name Bluvertigo shortly before recording their first album. The founding members are Morgan (Marco Castoldi), Andy (Andrea Fumagalli) and Marco Pancaldi. Drummer Sergio Carnevale joined the band in 1994 while Pancaldi was replaced by Livio Magnini in 1996.

Bluvertigo's first album, Acidi e basi ("Acids and Bases"), was released in 1995. It was followed by Metallo non metallo ("Metal Nonmetal") in 1997 and Zero in 1999. These first three albums were later called "la trilogia chimica" ("the chemical trilogy") because every title has a reference to chemistry and the initial letters (AB-MN-Z) are respectively the first, the central and the last ones of the alphabet. In 2001 Bluvertigo participated to the Sanremo Music Festival with "L'assenzio (The Power of Nothing)". Following the release of the greatest hits album Pop Tools, the band went on hiatus for almost a decade. In 2008 they reunited for a live performance on MTV, an event later documented in the album MTV Storytellers (2008).

In 2003 Morgan released his first solo album: Le canzoni dell'appartamento.

Cesare Bonizzi

Father Cesare Bonizzi, O.F.M. Cap. (born 15 March 1946), also known as Frate Cesare and Fratello Metallo ("Brother Metal") - which was also the name of his band, is an Italian Capuchin friar, who was known as a heavy metal singer.

List of Amalgam Comics characters

The following is a list of fictional characters that appear in the comic books of Amalgam Comics. Any characters mentioned, but not seen, are excluded. They are listed by comic book and a team section is also provided. The amalgamations of characters or the Amalgam versions of one character are given. Plots of the Amalgam comic books are given in the list of Amalgam Comics publications and additional information about characters is provided in the references.


Neutrophil collagenase, also known as matrix metalloproteinase-8 (MMP-8) or PMNL collagenase (MNL-CL), is a collagen cleaving enzyme which is present in the connective tissue of most mammals. In humans, the MMP-8 protein is encoded by the MMP8 gene.


Metallo-Chimique International N.V., based in Beerse, Belgium, also described simply as Metallo, is a privately held metals and mining company.l) The company was incorporated in 1919. Metallo now specializes in the recycling and refining of metalliferous materials (e.g. copper, tin, lead, zinc, as well as cable, waste from the electronics sector, car catalysts, and the like), to produce pure tin and lead, electrolytic copper, copper anodes and solder from a wide variety of scrap and residues.The company produces approximately 10,000 tons of cu-anodes, 1,500 tons of lead-ingots and 800 tons of tin-ingots per month. It is the leading producer of pure tin in Europe. All Metallo-Chimique final products are made out of scrap and by-products. The company buys and processes a wide range of different scrap grades and qualities including complex materials such as ashes, slags, oxides, and sludges. Due to this what it describes as "this unique situation", Metallo-Chimique sources its raw materials from all over the world.

Metallo-beta-lactamase protein fold

The metallo-beta-lactamase protein fold is a protein domain contained in class B beta-lactamases and a number of other proteins.

These proteins include thiolesterases, members of the glyoxalase II family, that catalyse the hydrolysis of S-D-lactoyl-glutathione to form glutathione and D-lactic acid and a competence protein that is essential for natural transformation in Neisseria gonorrhoeae and could be a transporter involved in DNA uptake. Except for the competence protein these proteins bind two zinc ions per molecule as cofactor.

Metallo-beta-lactamases are important enzymes because they are involved in the breakdown of antibiotics by antibiotic-resistant bacteria. It is unclear whether metallo-beta-lactamase activity evolved once or twice within the superfamily; if twice, this would suggest structural exaptation.


Neprilysin (), also known as membrane metallo-endopeptidase (MME), neutral endopeptidase (NEP), cluster of differentiation 10 (CD10), and common acute lymphoblastic leukemia antigen (CALLA) is an enzyme that in humans is encoded by the MME gene. Neprilysin is a zinc-dependent metalloprotease that cleaves peptides at the amino side of hydrophobic residues and inactivates several peptide hormones including glucagon, enkephalins, substance P, neurotensin, oxytocin, and bradykinin. It also degrades the amyloid beta peptide whose abnormal folding and aggregation in neural tissue has been implicated as a cause of Alzheimer's disease. Synthesized as a membrane-bound protein, the neprilysin ectodomain is released into the extracellular domain after it has been transported from the Golgi apparatus to the cell surface.

Neprilysin is expressed in a wide variety of tissues and is particularly abundant in kidney. It is also a common acute lymphocytic leukemia antigen that is an important cell surface marker in the diagnosis of human acute lymphocytic leukemia (ALL). This protein is present on leukemic cells of pre-B phenotype, which represent 85% of cases of ALL.Hematopoetic progenitors expressing CD10 are considered "common lymphoid progenitors", which means they can differentiate into T, B or natural killer cells. CD10 is of use in hematological diagnosis since it is expressed by early B, pro-B and pre-B lymphocytes, and by lymph node germinal centers. Hematologic diseases in which it is positive include ALL, angioimmunoblastic T cell lymphoma, Burkitt lymphoma, chronic myelogenous leukemia in blast crisis (90%), diffuse large B-cell lymphoma (variable), follicular center cells (70%), hairy cell leukemia (10%), and myeloma (some). It tends to be negative in acute myeloid leukemia, chronic lymphocytic leukemia, mantle cell lymphoma, and marginal zone lymphoma. CD10 is found on non-T ALL cells, which derive from pre-B lymphocytes, and in germinal center-related non-Hodgkin lymphoma such as Burkitt lymphoma and follicular lymphoma, but not on leukemia cells or lymphomas, which originate in more mature B cells.

New Delhi metallo-beta-lactamase 1

New Delhi metallo-beta-lactamase 1 (NDM-1) is an enzyme that makes bacteria resistant to a broad range of beta-lactam antibiotics. These include the antibiotics of the carbapenem family, which are a mainstay for the treatment of antibiotic-resistant bacterial infections. The gene for NDM-1 is one member of a large gene family that encodes beta-lactamase enzymes called carbapenemases. Bacteria that produce carbapenemases are often referred to in the news media as "superbugs" because infections caused by them are difficult to treat. Such bacteria are usually susceptible only to polymyxins and tigecycline.NDM-1 was first detected in a Klebsiella pneumoniae isolate from a Swedish patient of Indian origin in 2008. It was later detected in bacteria in India, Pakistan, the United Kingdom, the United States, Canada, and Japan.The most common bacteria that make this enzyme are gram-negative such as Escherichia coli and Klebsiella pneumoniae, but the gene for NDM-1 can spread from one strain of bacteria to another by horizontal gene transfer.

Photodynamic therapy

Photodynamic therapy (PDT), is a form of phototherapy involving light and a photosensitizing chemical substance, used in conjunction with molecular oxygen to elicit cell death (phototoxicity). PDT has proven ability to kill microbial cells, including bacteria, fungi and viruses.

PDT is popularly used in treating acne. It is used clinically to treat a wide range of medical conditions, including wet age-related macular degeneration, psoriasis, atherosclerosis and has shown some efficacy in anti-viral treatments, including herpes. It also treats malignant cancers including head and neck, lung, bladder and particular skin.

The technology has also been tested for treatment of prostate cancer, both in a dog model and in human prostate cancer patients.It is recognised as a treatment strategy that is both minimally invasive and minimally toxic. Other light-based and laser therapies such as laser wound healing and rejuvenation, or intense pulsed light hair removal do not require a photosensitizer. Photosensitisers have been employed to sterilise blood plasma and water in order to remove blood-borne viruses and microbes and have been considered for agricultural uses, including herbicides and insecticides.Photodynamic therapy's advantages lessen the need for delicate surgery and lengthy recuperation and minimal formation of scar tissue and disfigurement. A side effect is the associated photosensitisation of skin tissue.

Superman Returns (video game)

Superman Returns is a video game based on the film of the same name, It was developed by EA Tiburon and published by Electronic Arts in conjunction with Warner Bros. Interactive Entertainment and DC Comics.

In the game, Superman combats Bizarro, as well as other classic villains (including Metallo, Mongul, and Riot) as well as being able to play as Bizarro in one of the minigames. It was produced for the Xbox 360 as well as the PlayStation 2 and Nintendo DS. A port for the PlayStation Portable was planned but cancelled due to it not having enough power to support the game.

The game features the voice and likeness of Brandon Routh (Superman/Clark Kent) as well as the voices of Kevin Spacey (Lex Luthor), Kate Bosworth (Lois Lane), Parker Posey (Kitty Kowalski) and Sam Huntington (Jimmy Olsen), all reprising their roles from the Warner Bros. Pictures film directed by Bryan Singer.

The Nintendo DS version also features games based on the film, but they are fundamentally different from the console title. The games were delayed from their original release date (set to coincide with the theatrical release of the film) due to design complications and issues with polish on the console game. The handheld games were delayed in order to preserve a simultaneous release with non-handheld SKUs. The games were ultimately released on November 22, 2006 in the United States and November 30 in Australia, to coincide with the DVD release of Superman Returns.

Superman Revenge Squad

The Superman Revenge Squad is the name of two fictional organizations in the DC Comics universe. As their name suggests, they are enemies of Superman.

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