Any great leader requires a successor, no? Momonga-sama may have stayed with us until the end, but if he loses interest in us one day, he may leave for another place like the rest of the Supreme Beings. Thus, there is a need for a successor to whom we can pledge our loyalty.
~ Demiurge's opinion regarding Ainz's potential successor.
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 and the Commander of the Nazarick defenses.

Among the humans, he goes by the alias Jaldabaoth, the Demon Emperor that leads an army of demons against humanity.

He was voiced by Masayuki Kato in the Japanese version of the anime, and Jeff Johnson in the English dubbed version of the anime.


Overlord II Episode 11

Demon Emperor Jaldabaoth.

Demiurge is a well dressed demon in a red suit, wearing black gloves and glasses. He has well combed hair and a long tail with spikes sticking out at the end. Underneath his glasses are a pair of eyes that appear to be made of jewels.

When he shapeshifts, he gains more of a monstrous form with his eyes taking on more of a demonic look and grows a large pair of wings. Under his alias, Jaldabaoth, he wears a dark mask and grows a set of sharp claws. Later on, he appears to have taken on the appearance of a true monstrous demon, though in reality, this is one of his subordinates, Wrath.


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.

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.

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.

Powers and Abilities

Overlord EP02 077

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. 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.
  • 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.



  • 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.


           Overlord logo Villains

Great Tomb of Nazarick
Supreme Beings
Ainz Ooal Gown | Ulbert Alain Odle

Floor Guardians
Albedo | Shalltear Bloodfallen | Demiurge | Cocytus | Aura Bella Fiora | Mare Bello Fiore | Gargantua

Sebas Tian | Lupusregina Beta | Narberal Gamma | Solution Epsilon | Entoma Vasilissa Zeta

Area Guardians
Pandora's Actor | Kyouhukou

Floor Guardian Subordinates
Evil Lord Wrath | Evil Lord Envy | Evil Lord Greed

Independent Members
Neuronist Painkill | Iguva=41

Khajiit Dale Badantel | Clementine

Human Kingdoms
Barbro Andrean Ield Ryle Vaiself | Fluder Paradyne | Remedios Custodio | Renner Theiere Chardelon Ryle Vaiself | Erya Uzruth

Dragon Lords
Cure Elim Los Malvar | Olasird'arc Haylilyal | Tsaindorcus Vaision

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