Asraroth

Astaroth, also known as The King of Rot is one of the Eight Demon Kings. In a bid to return Satan's spawn back to Gehenna. He possesses a delinquent gang leader.

Minor Form.
Astaroth looks like a possessed human, with the additional features of a goat-like spiral horns, longer and sharper nails. Canine like teeth, red eyes, and a demon tail, and a longer tongue.

Major Form.
In his full form, Astaroth's appearance becomes much likely a stereotypical Demon (with goat like lower limbs.). He becomes bigger, his skin turns a dark red colour, possesses claws, his horns become much bigger, his eyes turn completely red, and his teeth becomes battered. This form only appears in the anime.

Powers and 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 then punching a driver almost through a wall.

Trivia.
Astaroth, in Demonology, is a Demon of the first Hierachy, who seduces by means of laziness, vanity, and rationalized philosophies.