Top 10 Most Evil Demons
Here is a list of the most evil and wicked demons in all of history. If there's any I missed, feel free to add them (ones from religion and mythology are allowed).
Satan is the biggest, most evil monster in all of existence and history. By the way, I heard that some people say that Leviathan is the same as Satan, but people started thinking that they were the same kinds so in reality Leviathan is like one of Satan's top soldiers or something. By the way, I heard that Lucifer is Satan's cousin, and Bezellbub is also related to him. They form the Trimvirate of Hell (I would suggest looking up the word).
You all knew this would be number 1. He is the absolute most evil thing in all of existence and is the ruler of Hell. He is known by many names and is known as an evil force in the Abrahamic religions.
I shall never say why

One of the scariest demons I have ever see.
This demon is in the film the nun as long with insidious. it's the scariest demon other than it
It's real name is valek. I'm someone else said this but I just wanna say the that his real form is the form of a child and he has a pet dragon for which I don't know the name of. He is also 3rd in charge of hell.

A demon in Sumerian/Mesopotamian mythology. She is known for infamous acts such as menacing pregnant women, eating infants, infesting rivers, killing crops, and many other heinous acts.
The most menacing of all and the origin of all evil.

One of the most popular Jewish demons. According to Judaism, Azazel is a very evil spirit and the leader of a certain class of demons that live in the desert. In Greek mythology, Azazel appears as te scapegoat while according to Islam, Azazel is a fallen angel who used to be one of the highest-ranked Angels of Allah.

This demon of Hell is second in command (behind Satan) and has only forty legions of demons under his control. He can reveal your desires and destroy them, will fool you with "good" familiar spirits, and will finally betray you; but only after he has accepted your blood sacrifice.

Has a devil put aside for me, for me, for me!

More of a term/symbolic icon but whatever (it's also my profile pic). It originated in the 14th century as a supposed figure of worship of the Knights Templar. It is often depicted as a hermaphroditic person with wings and a goat's head.


Levaithan's new appearance:
Leviathan is a giant, reptilian female humanoid creature with the lower half of her body fuse to the forehead of a colossal sea serpent and she can towering over a city with great ease. Her's humanoid half have four long arms with large forearms and claw-like hands, her's body is covered in a dark green scales, her's face is white with a third eye on her's forehead, her's eyes have a black sclera, green iris and split pupils, fin-like ears, two horns and razor sharp teeth. Her's sea serpent half have extremely long serpentine body, six green eyes, massive mouth with large razor sharp fangs, ten fin-like wings and three-pronged fin on both sides of its head.
A beast of the seas, has been known to cause Tsunamis with his sneezing, and is one of the most feared demons. But of course, it can be killed. But it's really hard to do so.

One of the most powerful demon lord and considered most favourite devotee of Lord shiva

You all may know him as the demon who possessed the little girl in The Exorcist. In ancient Mesopotamian beliefs, Pazuzu was the king of the demons of the wind, brother of Humbaba, and son of the God Hanbi. He also represented the southwestern wind, the bearer of storms and drought.

A Jewish demon who is responsible for any miscarriages. She herself is infertile so she proceeds to kill children out of jealousy.
He is the Angel of death. He literally kills everyone. He is also Apollyon. How is a angel who kills everyone not at the top. Death is what everyone fears

Vapula is known in the Christian tales as one of the highest-ranking demons of Hell. In fact, according to demonology he's the grand duke of Hell and the commander of numerous legions whom he has taught the art of human soul deception. He's often depicted as having the body of a lion and the head and wings of an eagle.

This demon makes "those who run stand still." He is also said to be one of the demons that controls earthquakes. He also teaches many languages, focuszing on the profanities and ethnic slurs. He is also believed to be the ruler of the eastern zone of Hell, and he is said to have 31 legions of demons at his commend.
