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Astaroth PP





The King of Rot (腐の王 Kusa no Ō)




Male Male




175 cm (5'9") (Minor Form)


63 kg (139 lbs.) (Minor Form)

Hair Color

Pale Purple

Eye Color


Blood Type


Professional Status


Exorcist Information

Demon King

Personal Status



Satan (Father)
Amaimon (Brother)
Azazel (Brother)
Beelzebub (Brother)
Egyn (Brother)
Iblis (Sister)
Lucifer (Brother)
Mephisto Pheles (Brother)
Rin Okumura (Half-Brother)
Yukio Okumura (Half-Brother)

Manga Debut

Chapter 107

Anime Debut

Episode 1

Japanese Voice

Kentarō Itō

English Voice

Derek Stephen Prince

Image Gallery

Astaroth (アスタロト Asutaroto), also known as The King of Rot (腐の王 Kusa no Ō), is one of the Eight Demon Kings. In a bid to return Rin Okumura back to Gehenna, he possessed Reiji Shiratori, the leader of a delinquent gang.


Minor form

Astaroth Human Form

Astaroth's minor form

Astaroth looks like a possessed human with the additional features of goat-like spiral horns, longer and sharper black nails, canine like teeth, red bloodshot eyes, a demon tail, constant smaller demons surrounding him, and a longer tongue. In his minor form, he possesses a fatal verse which can disperse him.

"Evil is in their hearts, 'Oh Lord,
Give them according to their works, and according to the wickedness of their endeavors,
Give them after the work of their hands, render onto them to their reward.
Thou shalt destroy them and shall not build them up.
Blessed be the Lord.
The Lord is my helper, and my protector.
Thou shalt perish!"

It appears to be a variant on Psalm 28[1] starting on 28:3. While it does exorcise the demon in the manga[2], it only serves as a temporary reprieve in the anime, as Astaroth quickly retakes his hold on Shiratori.[3]


Astaroth's Major form

Major form

In his full form, Astaroth's appearance becomes much likely a stereotypical Demon (with goat like characteristics like having rounded horns and standing on two goat-like lower limbs). He becomes bigger, his skin turns a dark red/brown colour, possesses claws, his horns become much bigger, his eyes turn completely red, dark markings around his eyes, forehead, cheeks and neck, and his teeth become battered. This form only appears in the anime. This form has a separate fatal verse from the minor form.

"O Lord, bind a millstone around its neck so that it shall never again rise from the depths of the Leviathan!

Chain it in darkness eternal, where it will not hear nor see!"

This one appears to be taken from Matthew 18:5-7. Even when enacted though, other precautions must be made afterward to ensure that Astaroth does not take control once more.[4]


A true demon, Astaroth is extremely violent and sadistic, being willing to bully and hit his companions and threatening to badly injure a defenseless Rin.

However, Astaroth is much more controlled when it comes about Satan, whom he loyally serves and worships, calling him "Lord Satan" (English dub) or "Satan-sama" (Japanese Dub). Discovering Rin's flames makes him effectuate a full-blown change of behavior towards the teen, whom Astaroth starts to call "young lord" and treat with reverence, as befits the son of Gehenna's god.



True Cross Academy arc

Astaroth, possessing the student Reiji Shiratori, appears to Rin and goads the young man into a fight. His companions (who are unaware of Reiji's possession) immobilize and suppress Rin. Despite his companions’ uneasiness, the Demon-possessed boy draws a knife and threatens to mutilate Rin's face.
Demon and Rin

Astaroth tries to persuade Rin to come to Gehenna

Fearing for his life, Rin subconsciously releases an aura of blue flames for the first time, proving to the Demon that he was the son of Satan whom he sought. However, before he is able to bring the son of Satan back to Gehenna, Father Fujimoto appears and swiftly defeats the Demon via a chant, thus freeing Reiji from Astaroth's possession.

In the anime, the Demon introduces himself as Astaroth, the King of Rot. After his quick defeat at the hands of Rin’s foster father, Astaroth manages to repossess the body of Reiji, leading to a second engagement, this time inside the church. Despite the use of his "major" form, the second battle also fails to go in his favour. After a brief skirmish with the Paladin, Rin and several other Exorcist that resided in the church, Astaroth is once again banished from Reiji Shiratori’s body.

Powers & Abilities

He is a powerful Demon capable of possessing humans and has shown control over Coal Tars, Ghouls, and demonic mushrooms. He has shown extreme power and durability by being run over by a truck, surviving, and punching the driver against a wall.


  • Astaroth, in Demonology, is a Demon of the First Hierarchy, who seduces by means of laziness, vanity, and rationalized philosophies.
  • The demon that possesses Reiji Shiratori is never given a name or identified as one of the Demon Kings in the manga.



  1. Psalm 28
  2. Ao no Exorcist Manga: Chapter 1, page 29
  3. Ao no Exorcist Anime: Episode 2
  4. Ao no Exorcist Anime: Episode 2


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