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For other uses, see Krang (disambiguation).
The fearsome Krang, inside his mechanical suit in the 1993 OVA
Publication information
Publisher Archie Comics
First appearance "Enter The Shredder"
(December 15, 1987)
Created by David Wise

Kraang is a supervillain appearing in the Teenage Mutant Ninja Turtles TV shows and most frequently in the 1987 STH cartoon and its associated media, such as the Teenage Mutant Ninja Turtles Adventures comic book and most of the classic TMNT video games.[1]

Kraang's first comics appearance was in Teenage Mutant Ninja Turtles Adventures vol. 1, #1, published by Archie Comics in August 1988. In the 1987 TV series, Kraang was voiced by Pat Fraley. He is still one of the primary antagonists to the Ninja Turtles, appearing as General Kraang in the 2012 IDW comic publication.[2]


In the 1987 Teenage Mutant Ninja Turtles cartoon background story, Krang commanded an army of Rock Soldiers under the leadership of General Traag and Lieutenant Granitor. He took the completed Technodrome (a powerful mobile battle fortress) for himself, then banished Drakus (who helped Krang build it) to Earth. Originally, Krang was a warlord from Dimension X. To punish Krang before sending him from Dimension X, Krang´s brain was stripped from his body and his body reduced to a brain-like form. Banished from Dimension X, Krang ended up on Earth.

While on Earth, Krang allied himself with the Shredder, who, along with his robotic Foot Soldier army, moved into the Technodrome. In exchange, the Shredder had to design and build a new body for Krang, a human-shaped exo-suit. Shredder lived up to his part of the bargain in the season 1 episode "Shredder was Splintered", in no small part because he was unable to deal with the Turtles and needed Krang's help. In the season 3 episode "Shredderville", the Turtles have a dream of a parallel world in which they never lived, and Shredder had no problem taking over the world; in that world, Shredder abandoned Krang after his conquest was complete, leaving him with no body and a heavily-damaged Technodrome.

Krang's ultimate goal is to take over the Earth; it probably only became his objective after he was exiled on the Earth, but this point has never been made clear. Every plan Krang conceives is either aimed at that goal, or towards the short-term objective of powering-up the Technodrome. He does not share Shredder's obsession with the Turtles and Splinter; while Shredder sees them as mortal enemies, Krang seems to regard them more like annoyances to be destroyed when they interfere in his plans. He and Shredder are constantly bickering about tactics and often take pleasure in the other's failings (and sometimes intentionally sabotage each other). From season eight onwards, their friendship appeared to have grown. There were many times that Shredder could have just left Krang at the mercy of the Turtles or Lord Dregg, but he always rescued him, and went as far as to donate his life energy to save him.

Counting from the first meeting between the Turtles and Shredder and Krang, Krang spent seven seasons in the Technodrome, either somewhere on Earth or in Dimension X, scheming to power up his battle fortress and take over the Earth. Eventually the Turtles managed to banish the Technodrome back to Dimension X without Krang and Shredder. At that point they began operating out of an old science building. Krang and Shredder eventually returned to the Technodrome in the season 8 episode "Turtle Trek", but the Turtles destroy the engines of the Technodrome, trapping it and its inhabitants in Dimension X and putting an end to Krang's plans.

Krang spent the next two years in Dimension X, until he was contacted by Dregg. Dregg arranged for him and Shredder to come back to Earth, to help him fight the Turtles. Together, they capture the Turtles, but Dregg then betrays them, and tries to drain the life energy of the Turtles, Krang, and Shredder all at once, making them weaker while Dregg becomes stronger. Shredder alone escapes the trap and restores Krang, but Dregg captures them again. Finally, the Turtles spoil Dregg's plan and transport Shredder and Krang back to Dimension X.

In the series finale, "Divide and Conquer", the Turtles return to the Technodrome to take Krang's android body, which they need to fight Dregg. Krang is nowhere to be seen, but it is assumed that he is still somewhere in Dimension X.

In the Archie Comics series, Krang was depicted as far more evil and wicked than in the cartoon. He was said to have the blood of whole races on his hands, like Wingnut and Screwloose's home planet Huanu.

In the 2009 film Turtles Forever, the later 2003 Turtles also encounter Krang, who eventually aids the turtles in defeating Utrom Shredder.

The 2012 IDW comic series show an even darker depiction of Krang. In issue 7 of the current ongoing, General Krang is shown invading the Neutrino planet alongside Traag and his Stone Soldiers. He is working with Baxter Stockman on Earth to create Mutagen in order to have more mutant soldiers.[3]


Krang used a large, bulky, powerful mechanical body. Krang rested inside a cockpit within the torso. Originally, the suit had a microchip installed that allowed both Krang and the robot to change his size to near Godzilla proportions. This chip was subsequently destroyed in the first episode the suit debuted, though it was apparently repaired in a later episode in which the suit is brought to life by a computer chip from a videogame being played by Bebop and Rocksteady, only for the robot's entire body to be destroyed by a powerful explosive developed by an at the time amnesiac Shredder after Michelangelo managed to take control of the machine via his own copy of the same game, though he obviously found a way to somehow repair it in Turtles Forever, as he again uses its ability to increase in size. The Utrom Shredder Ch'Rell co-opted this technology and quickly defeated Krang in direct hand-to-hand combat in a matter of seconds.

Even without the microchip, the exosuit had many capabilities. The hands could shapeshift into various weapons (axes, maces, pincers) and even a communication device. In later episodes, however, Krang could be seen changing his arms from a collection of different types he had in his personal quarters aboard the Technodrome. Krang's suit also could "grow" jet wings in place of his arms, which he used to manage a quick escape with Shredder in its first appearance.

Krang also occasionally employed a machine he referred to as a 'walker'. This device was primarily a set of mechanical legs attached to a platform with either glass or some form of transparent but protective covering through which Krang could see, and holes for him to extend his tentacles through so that he could manipulate objects. This particular mode of transport was the version used for the first toy of Krang produced by the toy company Playmates. There were also two toys of Krang and his android body, one a large-scale figure and the other in scale with the regular-sized figures. Both came with removable Krang figures.

In the Archie Comics version of TMNT, Krang was shown to have the ability to completely attach his own body to the heads of other living things while they are unconscious and have full control of that beings body while attached, as seen when he attached himself to Shredder's unconscious body after a new ally of Krang's knocked Shredder out.

In the final season of the 1987 cartoon series, Krang showed signs of psychic powers when he hypnotized one of Lord Dregg's soldiers into obeying his and Shredder's commands, saying it would only work on weak willed people.


Krang's physical appearance was inspired by the Utroms from the original TMNT comic book[4] and in the 2003 animated series there is an Utrom named Krang. However, in the 1987 cartoon, Krang is not stated to be an Utrom. There are several important differences:

  • The Utroms are stated to come from another planet in the Milky Way galaxy, while in the 1987 cartoon Krang says he comes from Dimension X.
  • The Utroms are naturally brain-like aliens, while in the first animated series Krang claims to be an alien who has been stripped of his body and left with only his brain. It is never stated what kind of body he had.
  • Krang never refers to himself as an Utrom, nor does anyone else, in the 1987 cartoon.

In the 1987 animated series, Krang's natural physical shape may not be brain-like:

  • When he cloned himself in "Invasion of the Krangazoids", his clones, though initially brain-creatures like himself, continued developing until they had complete bodies, leading to the thought that Krang's true form is a large reptilian creature
  • In "Four Musketurtles", members of Krang's species appeared in a flashback looking just like him without the body, using bubble-walkers like his own to move.
    • Some consider this to be one of multiple mistakes within the series.[citation needed] It has been contradicted by other episodes.

The Dan Berger run on the TMNT comic strip in the mid-1990s indicated that Krang was an Utrom criminal.

While the Utrom race was not in any way featured in the 1987 cartoon, other than Krang having a similar design, they would appear in the 2003 TMNT series. Krang of the 1987 universe comes face to face with the Utrom Shredder during Turtles Forever and was initially pleased with his resemblance to the Shredder's Utrom form.

Krang is an Utrom in the IDW comic series.

2012 series[edit]

An alien species based on both Krang and the Utroms appear in the 2012 Nickelodeon show, named The Kraang[5] as the main antagonists of seasons 1 and 2. They are voiced by Nolan North.

Not unlike the Utroms in the Mirage comics and 2003 TV Series, they are portrayed as a race of brain-shaped aliens from Dimension X that pilot robotic bodies who were responsible for bringing the mutagen that was responsible for the Turtle's mutations to Earth. Their history became intertwined with the Turtles when they caught Splinter spying on them and attacked him while he was holding the not-yet-mutated Turtles, causing them to mutate when one of the Kraang accidentally dropped a mutagen canister on them.

When the mutated turtles went to the surface world 15 years later in "Rise of the Turtles," they came face-to-face again with the Kraang when they were about to kidnap April O'Neil and her psychologist father, Kirby, with the help of their getaway driver, Snake. After a failed attempt due to a lack of chemistry, the Turtles invaded the Kraang base, mutated Snake into a 12 ft. regenerating mutant ivy weed dubbed "Snakeweed" by Michelangelo, and rescued April, but failed to save her father.

In "Monkey Brains," the Kraang were mentioned to have assigned Dr. Victor Falco to create a neuro-chemical involving mutagen and chimpanzee DNA. As a despicable measure, Falco tested the chemical on his colleague Dr. Tyler Rockwell, mutating him into a humanoid mutant chimpanzee that can read emotions, but the Turtles stopped him from extracting it.

In "The Gauntlet," the Kraang have planted a mutagen bomb on the roof of the Wolf Hotel, but the Turtles were secretly warned about this plot through a message from the still-imprisoned Kirby O'Neil meant for April that was delivered by Pete the Pigeon. While trying to free Kirby, they learned from him that the Kraang have been abducting scientists so that they can help modify the mutagen's properties. Since the physical laws of Dimension X are different, the mutagen has different effects in this dimension. The bomb was defused by the Turtles during their fight at the hotel with both the Kraang and the Foot Clan.

In "It Came from the Depths," it was revealed that the Kraang travel between Dimension X and Earth using a portal in their headquarters that's power cell was stolen by Leatherhead six months prior. When the came to him demanding the cell's current hiding place, he entrusted it to the Turtles and dealt with the Kraang to buy them time to escape.

In "The Alien Agenda," the Kraang established the World Wide Genome Project as a front to collect the DNA of every animal and plant species on Earth. This was project was destroyed when Karai helped the Turtles with disgracing the DNA collection by creating a composite monster that Michelangelo named Justin.

In "The Pulverizer," the Kraang reclaimed the power cell that Leatherhead stole from them.

In "TCRI," it is revealed that the Kraang have their headquarters in the higher parts of the TCRI building. It is also revealed that the Kraang can only survive in poisonous gas. While inside the TCRI building, the Turtles discover the Kraang's invasion plan: To mutate the whole planet so that their kind can live here, which will wipe out everyone else in the process. The Kraang even brought Traag from Dimension X to attack the Turtles until it was dragged back into Dimension X by Leatherhead. When the Turtles got away when their explosives were unable to destroy the Kraang's portal, Michelangelo managed to obtain a Kraang data storage device which revealed that the Kraang are also after April.

In "Cockroach Terminator," the Kraang steal a special lens as part of a plot to use their laser drill to burrow to the Earth's core as part of the Kraang's invasion plan. This plot was thwarted by the Turtles.

In "Enemy of My Enemy," two Kraang operatives piloted a spacecraft as a means of hunting the Turtles up to the point where they ended up crashing a weapons trade involving the Shredder. The spacecraft was repelled by the Turtles and one of the pilots was captured by Shredder.

In "Karai's Vendetta," the captured Kraang was interrogated by Shredder on why they hunt the Turtles and learned on how they've been targeting April, who Shredder then sent Karai after to lure the Turtles out of hiding. Meanwhile, the rest of the Kraang had set up a base in the East River where they started a plot to turn Earth's water into Kraang water (which can dissolve a pizza yet not harm humans, or perhaps it just has no effect on April O'Neil, hence the Kraang's interest in her) and brought a large unnamed sea monster from Dimension X to help guard it. The Turtles managed to destroy the base and escape from the sea monster. We do not know if it can harm humans or not as April is the one who the Kraang water splashed on and the Kraang want April for a special reason.

In "The Pulverizer Returns," the Foot Clan began to steal mutagen from TCRI as part of Shredder's plan to create a mutant army. The captured Kraang tries to warn Shredder about how dangerous the mutagen is, but Shredder wouldn't listen and tried to go through with his plan. When the turtles foiled it, Shredder and the captured Kraang agreed that they have a common enemy, foreshadowing a teamup between the villains.

In "Operation: Break Out," it was shown that Shredder and the Kraang are working together, and that they engineered Kirby O'Neil's "escape" with the aid of the Turtles. The Kraang were also shown to have created a mutant hunter known as the Newtralizer, who proved to be beyond their control and who savagely attacked them after escaping his cell in the same holding facility where Kirby was held prisoner in.

In "Booyaka-Showdown," it is revealed that they have planted a mind control device on Kirby, which they use to force him to capture April and deliver her to Shredder, who uses her as bait to lure out Splinter. Having accomplished this, Shredder turned April over to the Kraang, who proceeded to use their portal to Dimension X to bring the Technodrone to Earth, though the Turtles subsequently succeeded in destroying the TCRI building. The leader of the Kraang, Kraang Prime (voiced by Roseanne Barr), also appeared as a much larger version of the typical Kraang, and attempted to drain April's unique mental energy to aid the terraforming process. However, the Turtles interfered in this plan, and the Technodrone was subsequently brought down off the coast of New York City, though it was revealed to be intact and partially active.

The Kraang continued to pose a threat throughout the second season, briefly maintaining an alliance with the Foot in which they provide them with robotic ninja soldiers and attempt to provide them with mutagen so that they can create mutants to destroy the Turtles. However, their partnership was dissolved after a number of incidents, including the Turtles intercepting a load of mutagen, which was subsequently scattered over the city and their robot creation Chrome Dome defying Karai's orders to kill April, as the Kraang still wished to capture her.

In "The Kraang Conspiacy," it was subsequently revealed by a private investigator, Jack Kurtzman, who had been investigating the disappearances of Kirby O'Neil and the other scientists who the Kraang had kidnapped, that this is because the Kraang have been preparing to terraform Earth for centuries, altering human DNA until they could create a perfect human-Kraang hybrid: April. In their efforts to utilize her, the Kraang create a number of clones of April, including a misshapen failure dubbed "April Derp" by Mikey; all of these clones were subsequently destroyed when April released a physic blast.

In "Metalhead Rewired," the Kraang initiate a plot to capture the various mutants inhabiting New York and enslave them with special control devices. They succeeded in rounding up a number of mutants and imprisoning them in a facility in a pocket dimension, but the location was discovered by Metalhead and the Turtles. They briefly used Snakeweed and Spider Bytez against the Turtles, but Metalhead freed them and the other mutants, who escaped back to New York along with the Turtles.

In "The Manhattan Project," the Turtles are focused on a Kraang plot in which the Kraang brought giant worm creatures known as Kraathatrogons to New York from Dimension X. These creatures were revealed to be the source of the mutagen, which they secrete and can be milked of, and also served as mounts for the Kraang. When the Turtles attempt to thwart their plans, they and the Kraang end up battling beneath New York and in the Kraang's interdimensional portal network. In the end, the Turtles are able to send the Kraathatrogons back into the portal network, with one of them ending up in the universe of the 1987 Ninja Turtles cartoon. This mentioned Kraathatrogon was seen briefly seen in the 2012 universe swallowing Tiger Claw, a mutant Bengal tiger who was had been the subject of one of the Kraang's experiments as a child uncounted years back and was recently inducted into the Foot Clan as Shredder's new second-in-command.

In "Into Dimension X," the Kraang have finally perfected the mutagen, but the Turtles were secretly warned about this success by Leatherhead through a Kraang Communication Orb. After finding their way into Dimension X and traveling to the Kraang's home fortress, which was being guarded by Traag and Granitor, the Turtles rescued Leatherhead and helped him stop the Kraang from dumping the perfected mutagen into Earth's dimension through multiple portals.

In "The Invasion," the Foot Clan finally made a full alliance with the Kraang to draw out and destroy the Turtles in exchange in helping them invade the city, which the Kraang did through various spies; the character Irma Langenstein is discovered to be the robotic housing of one such spy (voiced by Gilbert Gottfried), named Kraang Sub-Prime, who was eventually defeated by Splinter. Having perfected the mutagen in a previous episode, they began using it to "Kraang-form" New York, turning humans and their environs into creatures and structures reminiscent of Dimension X. The Turtles, Leatherhead, Splinter, April, and Casey briefly attempted to fight them off, but despite the aid of the new Turtle-Mech created by Donatello they were forced to retreat after a battle with Kraang Prime. Kraang Prime also claimed that the Kraang were responsible for the existence of humanity, who supposedly developed after the Kraang exposed monkeys to mutagen.

In "Buried Secrets," the Turtles discovered a Kraang ship beneath April's family farmhouse, where her great-grandfather supposedly discovered it and the Kraang inside, leading to generations of experimentation on the deceased relatives on April's mother's side of the O'Neil family until culminating in experiments they performed on her mother. They also discovered a clone of April's mother who was sealed in the ship due to being unstable, and managed to defeat her.

In "Return to New York," the Turtles returned to find the city under the control of the Kraang, with all but a handful of humans-including the Earth Protection Force-being either mutated or fitted with mind control devices. The Kraang are shown to control New York's streets, with any humans caught out in the open being captured and mutated. They also placed a security drone in the Turtles' lair to prevent them from occupying it again. These security measures force the Turtles to act with caution throughout much of the following arc, and in "Serpent Hunt" prompt Anton Zeck and Ivan Steranko to seek to make a deal with the Shredder to get themselves out of the city. Their attempt to do so through capturing Shredder's adopted daughter Karai and holding her for ransom lead to their mutation into Bebop and Rocksteady after Karai escapes due to the Turtles' interference.

In "Battle for New York," the Turtles's confrontation with the Kraang for the city occurred when they are unexpectedly joined by the Mighty Mutanimals, a rebel team of mutants . The two teams manage to thwart a Kraang plot to launch a mutagen missile, and then launch an attack on the Kraang portal so that the Turtles can infiltrate Dimension X and cure and free the mutated humans. This leads them to another confrontation with Kraang Sub-Prime, who follows the Turtles to Dimension X while the Mutanimals fight to capture and hold the portal. After battling Kraang forces on both sides of the gateway, the two groups of mutants succeed in teleporting the cured humans back to Earth while sending the Kraang back to Dimension X, putting a halt to the invasion for the time being.

"The Fourfold Trap" involves a mind-controlled Karai using the idea of the Kraang having returned to Earth as a trap to lure in and capture several of the Turtles. The Kraang would later return in truth during "Dinosaurs Seen in Sewers!" attempting to open another portal and bring a fleet of Technodromes to Earth. Their various operations were decimated when Zog, an advance scout for the Triceratons-sworn enemies of the Kraang-attacked them, causing considerable havoc despite being nitrogen-poisoned and lacking his equipment. After encountering Zog, the Turtles joined in his efforts, unaware that he planned to alert the Triceraton armada of Earth's location so that they could destroy it and wipe out the Kraang. The Kraang's plans to open a portal were thwarted, and the signal reached the other Triceratons without difficulty.

In "Annihilation Earth" the Turtles learn of the existence of the Utrom Tribe, a splinter group of the Kraang, from a member who goes by the name of Bishop, who is responsible for the design of the Kraangdroid bodies. He informs them that the Triceratons are approaching Earth, and also that the first Technodrome the Kraang brought to Earth has nearly been fully repaired. The Turtles and their allies launch an all-out assault on the Technodrome in an effort to bring it down that leads to several of them being captured and being brought before Kraang Prime and Sub-Prime, both of whom are present on the ship. Unfortunately, right as the rest of the team arrives to liberate their comrades, the Triceratons arrive in Earth's orbit and attack. The Kraang deploy stealth ships to engage the attacking Triceraton fighters, but they are easily shot down. The Triceratons then destroy the Technodrome with Kraangs Prime and Sub-Prime aboard with no apparent time or means with which to escape. After being captured by the Triceratons, Mikey then reveals knowledge of all the Kraang hiding places in Dimension X; however, in "Beyond the Known Universe" the Turtles travel back in time to six months earlier in an effort to prevent the Triceratons from attacking Earth using the Black Hole Generator, which the Kraang previously used to destroy the Triceraton homeworld.

"The War for Dimension X" reveals more of the history of the Kraang: originally they were all peaceful Utrom, until the scientist Kraang discovered the mutagen within the Kraathatrogon worms. He used it to mutate himself into Kraang Prime, and gained psychic powers that he used to enslave most of his species. Some managed to resist, but by the time the Turtles approach the Utrom council-having traveled back in time six months in an effort to prevent Earth's destruction-less than 100 Utrom remain free. The Utrom are revealed to have a ruling council consisting of Bishop, Pawn, Queen, and Rook; Kraang Sub-Prime was once the group's Knight and the greatest Utrom hero until he betrayed them to join the Kraang. In this altered past, Kraang Sub-Prime captures the Salamandrians after they approach the Kraang about forming an alliance against the Triceratons, having learned that they are friends of the Turtles. He then tracks the arriving Turtles to the Utrom base, where he captures Queen and takes her back to his Sub-Command Center. The Utrom then declare war on Kraang Sub-Prime's facility and are joined by the Turtles, Professor Honeycutt, and the Salamandrians. Despite possessing a Dracodroid, Kraang Sub-Prime's forces are defeated and he loses a duel to Bishop, before having the damaged cyborg dragon crash into him and explode.

Other series[edit]

While he did not appear as a villain in the 2003 series there was a homage to Krang in the episode "Secret Origins Part 3". As the Utroms are walking to the transmat to go home one of them complains, "I hate walking on my tentacles". Then, another Utrom replies "Oh, shut up, Krang!". This Krang was voiced by Wayne Grayson.

Krang also appeares in the 2009 crossover movie, Turtles Forever, in which he, Shredder and the turtles from the 1987 show end up in the 2003 universe. Although Shredder was able to find his 2003 counterpart, he was unable to find Krang's, even though he exists in this universe (albeit as a regular, non-evil Utrom). Krang is voiced here by Bradford Cameron.

Video games[edit]

Krang frequently appears in TMNT games as either a final boss or the penultimate boss, as the final boss before fighting Shredder.


In Teenage Mutant Ninja Turtles: Smash-Up, an Utrominator (from the 2003 episode Same As It Never Was) is a player character. It is a homage to Krang.[citation needed] It features a visible Utrom inside the stomach cavity of the suit.


Krang will appear in Teenage Mutant Ninja Turtles: Out of the Shadows.[6][7]


  1. ^ "Teenage Mutant Ninja Turtles On TV". IGN. Retrieved 21 August 2010. 
  2. ^ Teenage Mutant Ninja Turtles #7
  3. ^ Teenage Mutant Ninja Turtles (IDW) #7-8
  4. ^ "The Great Chase". Mirage Studios. March 1985. Retrieved 3 May 2012. 
  5. ^ Goellner, Caleb (March 9, 2012). "Parting Shot: Nickelodeon Shells Out New 'Teenage Mutant Ninja Turtles' Images". Comics Alliance. Retrieved March 27, 2012. 
  6. ^ [1]
  7. ^ Staff (February 7, 2016). "The Teenage Mutant Ninja Turtles: Out of the Shadows Super Bowl Spot!". Retrieved February 8, 2016. 

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