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Dark Zagi

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Dark Zagi
Dark Zagi render
Human Host/Form: Mitsuhiko Ishibori
Height: 50 m
Weight: 55,000 t
Age: Around 28,000 years
Home world: Visitor's home world: In M-80 in the Scorpio constellation, destroyed by supernova
Voice actor(s): Katō Kōsei
Suit actor(s): Iwata Eikei
First Appearance: Ultraman Nexus Episode 34 "AD 2009"
Last Appearance: Ultraman Ginga: Theater Special (2013)
Number of Appearances: 3 (Nexus)
Race: Ultra Clone
Status: Alive
Family: Visitors(creators)
Ultraman Noa (Template)
Dark Faust
Dark Mephisto
Dark Mephisto Zwei (Creations)
Affiliation: Space Beasts
Dark Giants (Creations and minions)
Dark Lugiel(Ultraman Ginga)
Zogu(Romantic Interest, Stageshows Only)

Dark Zagi (ダークザギ Dāku Zagi?) is a dark, evil, twisted, demonic clone of Ultraman Noa. He was created by a race of aliens under the initial name Ultinoid Zagi (ウルティノイド・ザギ Urutinoido Zagi?), who had hopes of creating their own protector after seeing the power Noa possessed. But something went wrong and Zagi turned on his creators, which the Visitors tried to end him by destroying their home planet but failed. Zagi then took an army of creatures known as Space Beasts and began a spree of universal destruction on any planet in his way. He is the main antagonist of the Ultraman Nexus series.

Subtitle: Evil God of Destruction (邪悪なる暗黒破壊神 Jaakunaru Ankoku Hakai-shin?)




Zagi's creators, the 'Visitors'

Space Beasts were a menace in the galaxy harboring the M-80 nebula in the Scorpio constellation, they were similar to the monsters of the Showa universe, and their origins are unknown. Zagi came into existence on the homeworld of the beings known to TLT as the Visitors, the jellyfish-like race, as an answer to this problem. They had witnessed the awesome power of a being of light known as Ultraman Noa, an immortal force of good who had visited other planets to defend them against monsters. Desiring a protector of their own, they went to work to create a duplicate of the great giant, an anti-Beast bio-weapon bearing the form and power of the ancient protector. However the end result was a horrid, dark and twisted mockery of Noa's form known as Dark Zagi.

In order to counter the Space Beast' ability to evolve from predation, Zagi was installed with a self-evolving program. But the giant awakened with a distorted consciousness, having well aware of himself as a "duplicate to the giant of light" and resorted to evolve the Space Beast instead as he went astray.

The dark giant forced his creators to destroy their homeworld, by causing their star to go supernova in an attempt to destroy him, their endeavor cast him into a tear between universes where he fought the Ultras from the Land of Light, among them was a young Zoffy and the other Ultra Brothers. This was a battle that made Ultraman Noa a legend in the Land of Light as he eventually cast his doppelgänger back into the tear. In his home universe Noa sealed the tear at the expense of most of his energy forcing him into lesser forms, while Zagi lost his physical form, presumably as a result of the conflict. Knowing the supernova would carry the particles of Space Beasts to another galaxy, his creators fled to Earth, the world they predicted would suffer because of their actions and Zagi took off after them followed by Noa.

Zagi possession

Zagi possessing his host body

Nagi Zagi

Nagi first meets Zagi

Arriving in Colorado, where TLT, the Terrestrial Liberation Trust, was being formed with help from the newly arrived visitors, he possessed a resident scientist and proceeded to slaughter the scientific team, all save for a young girl, the child of two of the scientists, somehow knowing her destiny, his goal was to use that for his ultimate plan. Later on he called his favorite Space Beast to be the first to attack the people of Earth, called The One by military, it had the Ultra like ability to merge with another being in which it used to absorb organisms to enhance its base form before being killed by Ultraman the Next; Noa's weakened form with the first Deunamist Maki Shunichi. As TLT was formed Zagi infiltrated it as Mitsuhiko Ishibori, having erased all memories of his host's previous life. There he watched the young girl he spared, Nagi, grow while corrupting her crush and mentor Mizorogi to further deepen the darkness in her heart. With the appearance of the Second Deunamist Jun Himeya, the host of Noa's semi-evolved form Nexus, Zagi began the long scheme to gradually strengthen the light using his pawns, the Space Beasts, Dark Faust and Dark Mephisto (Mizorogi) and Dark Mephisto Zwei.

Ultraman Nexus

For five years while TLT was creating the division called, Night Raiders, Zagi hid as Mitsuhiko and manipulated the situation so that the power of Nexus could be strengthened to recreate his body. With the appearance of the second Deunamist he began his plans sending even more powerful Space Beasts and the dark giants Dark Faust, Dark Mephisto. By the time of the third Deunamist, Zagi was left with no Dark Giants of his own to command his monster legions so he backed them up with his own dark power. After displaying his power of the Dark Field G he would codename Unknown Hand, due to the fact the he never physically appeared as far as TLT knew. All of these creatures were intentionally sacrificed so that the power of Nexus could be increased, allowing him to regain his body. Following the fall of the second Mephisto, he began the last phase of his plans, having his beast MegaFlash attack a city in broad daylight, creating the fear needed to increase his power, while weakening the power of the Visitors' potential barrier which limited the appearance of Space Beasts. After the destruction of Ezmael, Ren Senjyo, the third Deunamist seemingly died and Nagi Saijyo became the fourth. It was then that he revealed himself as Mitsuhiko for the first time. Zagi told the truth of how he destroyed the lab that included both of Nagi's parents as a small child, traumatizing her, knowing she would turn to hate space beasts like Zagi planned. Leaving a shocked and wounded team, Zagi departed to Level 0, where Lethe was housed, the power of the Visitors was now too weak to stop him. There he defeated Komon, Captain Wakura, and Illustrator with Nagi shortly after. Zagi proceeded to tell the Night Raiders his entire plan. After Nagi turned into Nexus, Lethe, the storehouse for all the deleted memories of Space Beast attack survivors and based on the body of Zagi, synchronized with Nagi's emotions and memories and consumed all the energy in her body because of her hatred, allowing Zagi to absorb this energy in turn to restore his physical body. 
Zagi Lethe

Zagi approaches his goal

Zagi stopping the visitors power.

Zagi stopping the visitors power.

Zagi Rise

Zagi's return to glory

After Zagi returned to his true form he attacked the city of Shinjuku and released all the space beasts in the world. After saving Nagi from Lethe's hold on her, Komon became the fifth Deunamist of Nexus and transformed as Zagi was destroying the city. Zagi had not anticipated another Deunamist acquiring the light, as Nexus used Amphans, Junis Red
Imag Zagi beam ckashese

Zagi and Noa beam clashes

and Junis Blue as he barely held his own against Zagi. As the crowd of humans were in awe and had great hope of the silver giant hero winning, Nexus turned into Ultraman Noa. Zagi roared in rage at the sight of his template restored and challenged to a final battle over Earth. As much as Zagi tried Noa easily overpowered the fiend and after being literally punched into orbit by the Noa Inferno, Noa used the Lightning Noa to destroy Zagi once and for all. While there would still be space beasts roaming the Earth, no one lost hope as humanity fought back many times.
Image Zagi end

Zagi's End

Ultraman Ginga

Zagi Appears Ginga Cap

Zagi as he appears in Ultraman Ginga

Zagi (or at least another version of him) returned at the end of the Theater Special, having been summoned by Dark Lugiel to challenge Ginga. Appearing out of his signature Dark Field G, Zagi was met by Jean-nine who challenged the Dark Giant.

Zagi manhandled the robot fighter, nearly ripping off its head in a display of utter brutality before forcing it off line. It was only the timely appearance of Ginga that saved it.

Ginga rescued his friend by knocking Zagi down with an energy pulse to the face, but hardly a slouch, in the mere second Ginga turned away Zagi was back on his feet and knocked down the Ultra with his Gravity Zagi. The two then began a high speed battle that involved them moving at high speeds with aura (which usually only appear when Ultras are flying through space) and teleporting all over the planet (perhaps even beyond but that is uncertain). In the end the two clashed with their beams in a similar manner to way Zagi and Noa once did. Zagi fired his Lightning Zagi and the Ginga fired his Ginga Cross Shot. The two rammed the other engaging in a point blank Beam Clash. It ended with a large explosion that cleared the rain clouds in a large circle while the two floated down. Once on terra firma, Zagi's Energy Core cracked, his twinged about in pain as dark energy escaped his body before exploding. His Spark Doll was then recovered by Dark Lugiel and most likely held by him until his own defeat, after which all the Spark Dolls returned home.

Other media

Stage Shows

Ultraman Zero, Ultraman and All-Star Transcendence! Ultra League!

Human Host


Zagi Host True name

The original identity of Zagi's host body

Mitsuhiko Ishibori
(石堀 光彦Ishibori Mitsuhiko): The analyzer and tactician of the team and an expert in computers. Unknown to everyone, he is Dark Zagi in disguise. He made contact with the Night Watchers by in the form of Unknown Hand (It is described as the unlimited darkness which controlled the Dark Giants and Space Beasts behind the scenes). He has the ability to generate a Dark Field G and it can power up Space Beasts, and is the power identified as Unknown Hand. In the end of the series, his identity was revealed as Mitsuhiko Ishibori of the Night Raiders. Dark Zagi eventually took his true form and assaulted the city before being confronted by Nexus. While Zagi was able to hold off Nexus' physical attacks and even deflect all his finishing attacks with his bare hands, Ultraman Nexus eventually evolved into Ultraman Noa. Noa proves to be too powerful for Dark Zagi to contend with and Zagi was literally blasted into space. Noa fired his Lightning Noa attack and Zagi attempted to counter with his own beam but was overpowered and finally killed in a huge explosion.


Dark Zagi
Dark Zagii

Dark Zagi


  • Height: 50 m
  • Weight: 55,000 t
  • Home World: The Visitor's homeworld in the scorpio galaxy in the M80 nebula

Physical Attributes

  • Eyes: Unlike most Ultras and his template's, Zagi's eyes glowed bright red. It is assumed they had similar but lesser abilities to Noa.
  • Energy Core: Like his template, Zagi's equivalent to an Color Timer was the Energy Core. Unlike his giants', his was the same design as Noa's.
  • Ultra Armor: Like Noa, Zagi's body was covered in natural armor that appeared to be similar to Protectors. Despite being stronger than any of the other Ultras (Faust, Mephisto, Zwei and Nexus) it was clearly weaker than Noa's as Nexus in Junis and Junis Blue form were able to hurt him, while he was barely a challenge for Noa.
  • Arms: Zagi was physically stronger than any of the other Ultras save Noa, he was stronger than Nexus in Junis Mode who was known for being strong. 


Zagi in his human form, does not have a transformation device, he purely used Lethe. Lethe first absorbed Nexus's light and turned it into darkness. The darkness then transferred to Zagi's human form and restored him to his original body.

Spark Doll

Spark Doll Dark Zagi

Dark Zagi became a Spark Doll in the conclusion of the Dark Spark War due to the Darkness Spark's powers. His Spark Doll was kept in Dark Lugiel's collection, and was DarkLived after Tyrant's defeat to stop Ginga. After defeating Jean-nine, Zagi was countered by Ultraman Ginga. After a battle of teleporting and firing beams, Zagi fired Lightning Zagi to counter Ginga's Ginga Cross Shot, but the beam clash defeated him. His Spark Doll was reclaimed by Dark Lugiel before Hikaru Raido could find it.

After Dark Lugiel's defeat, it is presumed Zagi retook his original form and departed Earth for home.


  • Dark Field G Deployment: Zagi can create a special type of dark field known as Dark Field G to do his bidding. He can use it to create a battlefield, transport Space Beasts or in human form to reflect attacks. He can use it regardless of his state. In the Extra Episode, he used this to enlarge a human-sized Bugbuzun Brood into giant. It appeared again in Ultraman Ginga as the dark vortex from which he appeared.
  • Mind Powers: Zagi has mental abilities of his own, like the visitors who made him, he could erase memories at his leisure as well as use the darkness in people's heart to control them, usually when they are hosting one of his Dark Giants. He can also show people images and illusions like he did to Mizorogi when he gave him back his memories.
    • Prophecy: Like Noa, Zagi could possible predict future events. For example, he predicted that Nagi would become the fourth Deunamist.
  • Lightning Zagi: Zagi's basic Ultra Beam. Zagi can emit an extremely powerful beam of dark energy from his vertical left arm, with his right placed on the back of it. This beam rival's Ultraman Noa's in power, but is still not as strong. It is his strongest attack
  • Zagi Shot: Zagi can emit extremely powerful blasts of dark energy from his knuckles. These have an huge amount of force behind them and can be fired in rapid succession.
  • Gravity Zagi: Zagi can emit an extremely powerful beam of dark energy from his crossed arms. This has a large amount of force behind it. It is fired in a way similar to Ultraman Hikari's Hikari Light Stream.
  • Flash Travel: Zagi can encase himself in a large aura of energy to fly to any area he wants as a ball of blue light.
  • Zagi Reflection: Zagi can emit a purple barrier that can reflect energy attacks. It is a dark version of the Noa reflection.
  • Extraordinary Jumper: Zagi is able to jump to great heights with ease.
  • Dark Ultra Powers: As the creator of the Dark giants Faust and Mephisto, Zagi in theory possess all of their powers. He was stronger than any Ultra shown in the series save Ultraman Noa, being able to withstand all of Nexus' strongest attacks.
  • Space Beasts: These monsters, like the dark giants, are Zagi's minions, they can be created via his power and are under his total control. When Zagi appeared in person at the end of the series it caused the Space Beasts all over the world to go active and rampage. After his defeat it appeared that the Space Beasts, while still remaining, were no longer such a threat as before.
  • Great Durability: Dark Zagi has great durability.

Techniques not used in the series

  • Darkness Zagi: A dark version of the Shining Noa creating a pulse of darkness.
  • Zagi Inferno: A dark version of the Noa Inferno using dark flames weaker than the original.
  • Zagi Spark: A dark version of the Noa Spark, is weaker than the original.
  • Zagi Blizzard: A dark version of the Noa Blizzard, is weaker than the original. Zagi freezes his opponent using a dark storm he summons.
  • Zagi Wave: A dark version of the Noa Wave which heals only Space Beasts.
  • Zagi Sight: A dark version of the Noa Sight.
  • Zagi Galaxy: Zagi's version of the Noa Galaxy using a dark wave.
  • Zagi Kick: A dark version of the Noa Kick, which uses energy waves to induce 'super gravity to empower the blow, is weaker than the original.
  • Zagi The Final: A dark version of the Noa the final, it turns all nearby light into darkness, because he lacked the Ultimate Aegis it is different from its light counterpart and has a different effect.

Techniques presented in Ultraman Ginga: Theater Special

  • Zagi Punch: A dark version of the Noa punch, which uses energy waves to induce 'super gravity to empower the blow, is weaker than the original. Seen used on Jean-nine.
  • Bullet Freeze (Name Unknown): Zagi can freeze bullets projectiles in mid-air by raising his hand. Presumably this is some form of Ultra Will-power
  • Acceleration: Zagi can move at high speeds while surrounded by a dark aura.
  • Teleportation: Zagi can quickly teleport to any destination he desires.

Cyber Dark Zagi
Ultraman X Cyber Dark Zagi Card

Cyber Dark Zagi


  • Height: 50 m
  • Weight: 55,000 t
  • Origins: Xio Headquarters
  • Cyber Power: 21/25

Toy Release Information

Dark Zagi was released as an Ultra Hero Series EX & Special (Yellow Eyes) in 2004. He was re-released as an Ultra Monster Series EX figure.


  • Originally, Dark Zagi was to somehow survive his demise against Noa and transform into his proposed ultimate form, Dark Lucifer. However due to the show's cancellation due to poor ratings, Lucifer was never seen. It should also be noted that Dark Zagi lacks the two spikes in his back, but Lucifer, Dark Zagi's ultimate form, has them.
    • Zagi that appeared in Ginga is most likely an alternate version of the character.
  • Despite it being his signature technique, Zagi was never seen using Dark Field G in the show in Ultra Form. However in Ultraman Ginga, Zagi appears using his Dark Field G.
  • In the Tsuburaya All Monster Photobook, Zagi has the second subtitle of Dark God of Destruction.
  • Originally Zagi had yellow eyes in the stage shows, but in later appearances, toys and on the show they were changed to red.
  • Being that he is a clone of Noa, his weight and height are the exactly the same as Noa when the Noa Aegis are not taken into consideration.
  • Dark Zagi actually makes an appearance in the show's second opening. During a line up of all the giants; Faust, Mephisto, Junis and finally Junis Blue, Zagi's blurry reflection can be seen in Junis Blue's eye. It is only brief and easy to miss.
    • Before he was physically seen in the last episode he was seen in the dimension of the strange ruins, rampaging. This was a vision by the illustrator and it's true nature is unknown. However, the next Deunamist to gain the light, met Stone Fleugal in a forest area instead of the temple, implying it had been destroyed.
  • Through his human identity, Zagi is the first antagonist to appear in a show's opening at the end with the Attack Team line up with the star Ultra.
  • Zagi is one of the few Ultras not based on either Ultraman or Ultraseven, even remotely, instead he design entirely after Ultraman Noa.
  • The fact that Zagi has the same mental powers as the Visitors implies that part of his DNA (or the Ultra equivalent) stems from them, this may have attributed to him  going mad. While Noa may possess the standard mental abilities of an Ultra, Zagi's powers are emphasized, implying they are unique to him and the Visitors.
  • Zagi may be the first instance of an Ultra Clone, but the first artificial Ultra was Terranoid.
  • Zagi's origins were revealed in stage shows and interviews from Nexus series staff as well as art books.
  • While Noa's name may have been drawn from the Biblical character, Zagi's name is an anagram of Giza, specifically the Great Pyramid of Giza.
  • Dark Zagi's intended Ultimate form Dark Lucifer was originally put forward as the villain of the movie Ultraman Saga, it was turned down in place of Alien Bat and Hyper Zetton.
  • Oddly, despite his animalistic behavior in Ultra form, Zagi has shown to be rather intelligent, having created a long term plan that actually succeeded and his human disguise showed remarkable skill with hacking and analyzing. Even in stage shows he has been shown as being more in control of himself in battle yet his film and TV appearances show him as something akin to a berserker in battle. An example of this being in that in an Ultraman Ginga stage show, he is not afraid to fight fellow antagonists if they are getting in his way, even going so far as to brutally attack EX Zetton, who was also an antagonist in the exact same stage show.
  • Dark Zagi is one of the few dark Ultras to fight in the Dark Spark War.
  • Zagi's battle with Ultraman Ginga ended in a similar way to his battle with Ultraman Noa, where their beams collided, their signature beams were fired from opposite vertical hands.

Ultra Warriors
Showa Ultras Ultraman | Zoffy | Ultraseven | Ultraman Jack | Ultraman Ace | Ultraman Taro | Ultraman Leo | Astra | Ultraman 80 | Ultraman Joneus | Ultraman Chuck | Ultraman Scott | Ultrawoman Beth
Heisei Ultras

Ultraman Great | Ultraman Powered |Ultraman Zearth | Ultraman Tiga | Ultraman Dyna | Ultraman Gaia | Ultraman Agul | Ultraman Neos | Ultraseven 21 | Ultraman Cosmos | Ultraman Justice | Ultraman Legend | Ultraman Noa | Ultraman Nexus | Ultraman the Next | Ultraman Max | Ultraman Xenon | Ultraman Mebius | Ultraman Hikari | Hunter Knight Tsurugi | Ultraman Zero | Ultraman Saga | Ultraman Ginga | Ultraman Victory | Ultraman Ginga Victory | Ultraman X | Ultraman Orb
Other Ultras Superior | Father of Ultra | Mother of Ultra | Ultraman King | Elek | Loto | Amia | People of U40 | Hanuman | Yullian | Ultra Nyan | Ancient Giants of Light | Tiga's companions | Ultraman Boy | Ultraman Pict | Ultraman Nice | Ultra Kamen Rider | Ultra Idemitsujin | Ultraman Neko | Ultraman Ribut
Counterparts/Alternate Universe versions Ultraman (Tiga Universe) | Ultraman (Superior 8) | Ultraseven (Superior 8) | Ultraman Jack (Superior 8) | Ultraman Ace (Superior 8) | Ultraman Tiga (Superior 8) | Ultraman Dyna (Superior 8) | Ultraman Gaia (Superior 8)
Manga Ultras Zoffy (Story 0 Manga) | Ultraseven (Story 0 Manga) | Ultraman (Story 0 Manga) | Ultraman Ace (Story 0 Manga) | Ultraman Jack (Story 0 Manga) | Ultraman Leo (Story 0 Manga) | Astra (Story 0 Manga) | Ultraman Taro (Story 0 Manga) | Gorian | Zaji | Drew | Colorless | Flare | Rutia | Alphonne | Ars | Acura | Remodeled Ultras | Manga Ultraman Tiga | Manga 2011 Ultraman
Another Genesis Giants Blast | Ultraman (Another Genesis) | Ultraseven (Another Genesis) | Ultraman Belial (Another Genesis) | Ultraman Jack (Another Genesis) | Ultrawoman Ace (Another Genesis) | Ultraman Taro (Another Genesis) | Luna and Corona (Another Genesis) | Ultraman Tiga (Another Genesis) | Jean-bot (Another Genesis) | Father Burai (Another Genesis) | GlenFire (Another Genesis) | Mirror Master (Another Genesis) | Ultraman Leo (Another Genesis) | Ultraman King (Another Genesis)
Imitation and Evil Ultras Imitation Ultraman | Robot Ultraseven | Ace Robot | Imitation Astra | Delusion Ultraseven | Imitation Ultraman Joneus | Ultraman Shadow | Evil Tiga | Imitation Ultraman Dyna | Terranoid | Imitation Ultraman Gaia | Imitation Ultraman Agul |Imitation Ultraman Cosmos | Chaos Ultraman | Chaosroids | Dark Faust | Dark Mephisto | Dark Mephisto Zwei | Dark Zagi | Fake Ultraman Mebius | Fake Hunter Knight Tsurugi | Imitation Ultraman Mebius | Ultraman Belial | Darklops Zero | Darklops | Robot Ultraman | Robot Zoffy | Robot Ultraman Jack | Illusion Ultraman Zero | Ultraman Geist | Ultraman Dark | Seven Dark
The Dark Giants Darramb | Hudra | Kamila

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