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“ | I've come here to make your kingdom into a living hell. Wails, maledictions, and cries of pain will echo without end! It will become a carnival of suffering! | „ |
~ Demiurge, as Demon Emperor Jaldabaoth, explaining his reasons for invading the Roble Holy Kingdom. |
“ | I desire to display my achievements to Ainz-sama, so I do not wish to use such methods to contact him. While I can receive his praise through a message, in the end, I would still prefer to hear his voice in person. That is all... Is that not the shared dream for all in Nazarick? | „ |
~ Demiurge discussing with Albedo regarding Ainz Ooal Gown. |
Demiurge is one of the main protagonists of the light novel series Overlord. He is a demon that serves as the Floor Guardian of the 7th Floor of Nazarick, Commander of the Nazarick defenses, and second-in-command of the Guardians.
Among the humans, he goes by the alias Jaldabaoth, the Demon Emperor that leads an army of demons against humanity and acted as the leader of the Demi-Human Alliance, a temporary coalition of various Demi-Humans who seek to annihilate the Roble Holy Kingdom.
He was voiced by Masayuki Kato in the Japanese version of the anime, and Jeff Johnson in the English dubbed version of the anime.
Appearance[]

Demon Emperor Jaldabaoth.
Demiurge is a well dressed demon in a red British suit, wearing black gloves and glasses. He has well combed hair and a long silver tail covered with metallic plates and six long spikes sticking out at the end. Underneath his glasses are a pair of eyes that appear to be made of jewels with numerous small cuts.
When he shapeshifts, he gains more of a monstrous, toad-like form with his eyes taking on more of a demonic look and grows a large pair of wings. Under his alias of the Demon Emperor Jaldabaoth, he wears a dark mask. If the situation calls for it, he will also grow sharp, long claws as well.
Later on, he appears to shapeshift into a true, monstrous demon. In reality, this monstrous demon is actually his subordinate, an Evil Lord Wrath with a unique, flaming appearance.
Personality[]
“ | That is what makes it interesting. You could enjoy the humans in that way too, could you not, Albedo? All you need to do is treat them as toys. | „ |
~ Demiurge's sadistic view on humans. |
Demiurge is cunningly smart and clever, acting based on logic rather than emotion. He is looked upon as one of the sadistic members of Nazarick, as he takes pleasure in watching others races suffer, regardless of whether they have done harm or not. Because of his sinister wits, he often suggests ideas of experimenting on enemies for the sake of his amusement. Serving as the Commander of Nazarick defenses, he is both tactical and strategic.
Demiurge sees any race or creature apart from Nazarick's residents as merely test subjects and tools. While he could have easily negotiated with the demi-humans at the Abelion Hills, he instead preferred to rely on force and fear to ensure they remained loyal to him for his own objectives. He constantly reminded them that they had no choice apart from serving him under his alias, and even went as far as taking the Zern prince hostage, and even ripped apart the Zern representative's arm merely because they arrived late to the invasion. His actions towards the Zern may have been done possibly because he had expected they would eventually betray his alter-ego of the Demon Emperor and serve his master Ainz.
Like many of the Floor Guardians, Demiurge pledges his loyalty to Ainz Ooal Gown. Although he respects his lord and follows his orders, he does sometimes question his decisions and often suggests alternatives. He and Sebas Tian do not get along, however, as they both have different perspectives on the value of others. Demiurge also has a negative perspective of Albedo, and seeks her position as Overseer of the Floor Guardians, primarily because he sees her to be an insane woman. He prefers not to deal with her and would instead directly communicate with Ainz for any issues or concerns.
Interestingly enough, Demiurge has an creative side of him when it comes to arts and crafts. This is shown when he gathered numerous parts of bones from different species and used them to assemble a throne for Ainz.
However, for all his cruelty and evil deeds, he does care for his comrades deeply, and will not idly stand by if anyone attacks or harms them. This is seen especially during the raid on Eight Fingers mansion, where Entoma was defeated and at the mercy of Blue Rose, who were almost about to kill her, until Demiurge intervened and was hoping to make them suffer for what they did to her. Unfortunately, his spell killed Gagaran and Tia, and he was disappointed at the outcome. It should also be noted that the more calmer he is, it would mean he is extremely enraged. The hidden aura he emitted when encountering Blue Roses was extremely powerful that it reeked of rage and bloodlust, and Evileye herself struggled to just keep that aura from being contained.
As Jaldabaoth, he has an unnerving sense of politeness, one which is extended to both allies and enemies.
Powers and Abilities[]

One of Demiurge's transformations.
Despite being one of the weaker Floor Guardians, Demiurge is a very powerful member of Nazarick and is one of the few that has shown to possess such power that rivals with Ainz Ooal Gown (the other being Shalltear Bloodfallen). Because of his great power, beings such as Evileye viewed him as a being that surpassed the Evil Deities and the Demon King. His primary strategy involves the parties to take part in attrition warfare. He possesses numerous abilities that include:
- Superhuman Strength: Demiurge possess strength rivaling with Ainz Ooal Gown.
- Superhuman Speed: Demiurge possess speed that rivals with Ainz, as shown in his battle where he was able to keep up with him and fight on par with his attacks, making him surpass regular human speed.
- Shapeshifting: Demiurge is able to shapeshift and transform into a variety of forms. One of his notable forms is that of an imp, in which he possessed a reptilian appearance with large wings.
- Magic: Demiurge, like many members of Nazarick, possess an arsenal of magic. He is able to grant himself immunity to fire elements. His magic is said to rival with that of the Platinum Dragon Lord. He is also capable of summoning an army of demons, ranging from weak to strong ones.
- Voice of Obedience: Demiurge can channel his magic into his vocal chords to make others physically do as he wishes; while their minds are unaffected. His most common command is "On your knees" to make others bow to Ainz.
- Meteor Fall: A 10th Tier spell which is able to summon a meteor that falls from the sky with shimmering light, blinding onlookers temporarily. It rips through the air and hits the intended target, creating a massive burst of explosion upon contact capable of pulverizing any surrounding targets and flattens anything it touches. Demiurge uses this spell to destroy the Great Wall of the Roble Holy Kingdom.
- Hellfire Wall: A 7th Tier spell that creates a wall of flames surrounding the victim's range of view, leaving them trapped and damages the soul. It does not deal any physical damage on contact however.
- Flames of Gehenna: A spell creating an illusionary wall of crimson flames touching the sky. Demons standing inside the fire benefit from improved attributes, including their negative-karma spells capable of dealing more damage.
- Keen Intellect: Demiurge is one, if not, the smartest member of Nazarick, possessing a high degree of intelligence, serving as a tactical commander in the army. Albedo and Pandora's Actor are said to be the only ones that rival with his intelligence.
- Aspect of the Devil - Archdemon's Wrist: A skill that causes a devil's wrist to expand multiple times, increasing its mass and size by a large margin. The expansion allows the devil to use their own wrist as a weapon. Demiurge uses this ability to punch Evileye, with such power that she ends up being launched in air.
- Aspect of the Devil - Razor Sharp Claws: A skill that allows a devil to elongate its claws, causing them to stretch beyond eighty centimeters.
- Dimensional Lock: A spell used by higher ranked devils or angels. This spell nullifies all teleportation and transportation magic, thereby making it unusable.
- Evil Lord Summoning: Demiurge is capable of summoning any Evil Lord subordinate using his magic. The summoned Evil Lord, regardless of its type is always Level 80. He uses this to summon the Evil Lord Wrath Jaldabaoth to act in his stead as the Demon Emperor's "true form" and leaves it to lead the rest of the Siege of the Holy Kingdom. The downside of this skill is that it has a 50-hour cooldown and therefore cannot be used in a row. Another downside is that the summoned Evil Lord itself cannot summon any other Evil Lord or Demons.
Background[]
Demiurge is an NPC and the Floor Guardian of the Seventh Floor of the Great Tomb of Nazarick. He was created by Ulbert Alain Odle to guard the Seventh Floor from possible intruders in the MMORPG Game YGGDRASIL.
Upon the transportation of the Great Tomb of Nazarick to the New World, Demiurge sends his subordinates to scout the area around Nazarick and happens to catch Momonga attempt to leave Nazarick alongside his Demon subordinates in an armor. Demiurge asks Momonga to take some guards for protection, though this suggestion is declined instantly. Ultimately, Demiurge begs for his presence as Momonga's bodyguard, and it is granted. As they fly through the skies, Momonga sees the night sky alongside the moon and stars and desires to simply 'pluck' them, with Demiurge suggesting that the world should be his master's to rule, and Momonga jokingly agrees.
Momonga plans to change his name to "Ainz Ooal Gown" and ensure that his name is known throughout the New World. He announces this in front of the entire members of Nazarick, who accept his decision and plan to enforce it. Demiurge is considered to be a secret collaborator with various influential individuals of other nations for Nazarick's benefit, with a few of them including the "Golden Princess" and some other individuals from Re-Estize Kingdom as well as the current ruler of the Roble Holy Kingdom.
From the various nations he has able to infiltrate, he is able to carefully cover his tracks so as to ensure Nazarick cannot be traced back towards his operations.
Sometime during the course of the Overlord series, Demiurge created a farm near Abelion hills intending to farm the skin of a certain quality of sheep known as Abelion sheep which act as scrolls. Some time later, Demiurge would eventually conquer the Abelion Hills and set up a Demi-Human Alliance under his identity of the Demon Emperor Jaldabaoth, and would plan a future invasion on the nearby Roble Holy Kingdom.
Trivia[]
- Because Albedo did not exist in the Web Novel, Demiurge was the one that filled the role as the Overseer of the Floor Guardians. He was also depicted more as a normal looking devil.
- Due to his blind faith in Ainz, Demiurge doesn't realize that he is making up most of their plans; while Ainz tones them down or alters them to be as less fatal and sadistic as possible.
- He even believes the random and disconnected actions Ainz takes are seeds for future plans; such as creating the Momon persona to facilitate their takeover of Erantel by giving the humans a heroic figure to work on their behalf in Nazarick's hierarchy.
- Despite his detesting of humans, Demiurge does make exceptions for various reasons.
- He is quite impressed with Renner, who possessed a wicked nature akin to an imp; honoring her request to keep Climb safe during the subjugation of Eight Fingers.
- He tolerates Tuare working as a maid for the Great Tomb, as Sebas wished to increase the workforce and due to Ainz honoring the girl's request to work with Sebas.
- Demiurge is usually busy at his farm; harvesting skin from Albion sheep for magic parchment.
- Demiurge intends to place his identity of "Jaldabaoth" as a new Demon God, the infamous leader of the Evil Deities, who wreaked havoc in the New World 200 years ago.
- It is therefore possible that he may use Jaldabaoth's identity to create a controlled threat and further manipulate nations into allying with the Sorcerer Kingdom, similar to how he secretly forced the Roble Holy Kingdom to enlist the Sorcerer Kingdom's aid.
External links[]
- Demiurge on the Overlord Wiki.
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Sorcerer Kingdom Floor Guardians Pleiades Area Guardians Floor Guardian Subordinates Other Members Dragon Lords Human Kingdoms Baharuth Empire Roble Holy Kingdom Slane Theocracy Others Eight Fingers Three Monsters Demi-Human Alliance Elf Country |
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Overlord |
Sorcerer Kingdom |
Ainz Ooal Gown | Albedo | Shalltear Bloodfallen | Demiurge | Cocytus | Aura Bella Fiora | Mare Bello Fiore | Pleiades (Sebas Tian, Yuri Alpha, Lupusregina Beta, Narberal Gamma, Solution Epsilon, Entoma Vasilissa Zeta, CZ2128 Delta) | Pandora's Actor | Kyouhukou | Hamsuke |
KonoSuba: God's Blessing on this Wonderful World! |
Mobile-Fortress Destroyer | Vanir | Chomusuke |
Re:Zero − Starting Life in Another World |
Roswaal Mathers | Petelgeuse Romanée-Conti | Satella |
The Saga of Tanya the Evil |
Tanya von Degurechaff | Vera Mitrohina |