Mon-Tiki, god of fire.

Mon-Tiki is the god of fire, of an isolated tribe on a secluded Polynesian island. Whenever his people are threatened he can be summoned to deal out his holy justice.

Mastema, the Persecutor

Mastema is an arch demon who acts as a persecutor and enforcer, to enact the vengeance of He Who Is Above All. He commands the legions of Hell to the will of the Above, because the evil of mankind is great.

Inculsonombulis - Bringer of Nightmares

The Inculsonombulis uses dark demonic magics to spin the terrors of Hell into the tapestry of dreams, to haunt and terrify the unwary. The creature's body is constantly in flux, ever changing to reflect the terrible visions he creates.

Leviathan

The Leviathan is the primordial sea monster who God finally slays during the battle of Armageddon. Leviathan is described as a massive serpent which lives under the "sources of the deep." Myths of sea serpents and dragons are common to many of the religions of the Middle East.

Thaumeil, The twins of Shadow

In the Kaballah, Thaumeil is the name of one of the Qliphoth (or an impure spiritual force.) They are represented as two giant heads with bat-wings.

Argat Bat Mahlat

Agrat Bat Mahlat is one of the four angels of prostitution, and one of the wives of the Archangel Samael, along with Lilith, Naamah, and Eisheth Zenunim.

Malproditix, the Betrayers

The Malproditix are a type of demons who were originally the darkest of souls. Only the most willingly vile and destitute during life have the chance to join their ranks. They are called "The Betrayers" as they have turned their backs utterly against mankind and all that is good and pure for a pittance in Hell. Their bodies are permanently twisted and pierced. As each of their movements sends them into unknowable agony, and their only release comes from inflicting the same on others. Although they have earned somewhat of a position of respect in the lower demon hierarchies, most Demon Majors treat them little better than cannon fodder. During the many wars in Hell they are often sacrificed first.

Sonneillon, Lord of Hate

Sonneillon is the demon of hate, formerly of the order of thrones, and the adversary of St. Stephen. He tempts men with hatred against their enemies.

Yblicharix

Yblicharix are a race of demonic worms, which burrow through the fleshy ground in Hell's lower levels. Although originally not demons themselves, eons upon eons of exposure to dark energies has warped them in ways which cannot be undone. Many of them have begun harvesting souls and graduated into true demonic status.

Belial, Crown Prince of Hell

Belial is one of the four crown prices of Hell. He commands over fifty Legions of demons. He bestows honor, titles, and royalty, if the proper sacrifice is made. He seduces the weak by means of arrogance and pride.

Arathorachrix

The Arathorachrix are hellish scorpions, created by combining particularly egregious souls who's sin is betrayal. As they have squandered the trust of those in life, thus will they forever sting those in the inferno. The Arathorachrix are often kept as instruments of torture.

Oeillet, prince of Temptation

Oeillet is a prince in the hierarchy of hell told to Soeur Madeleine de Demandoix in the early 17th century by the demon Baalberith. He is Prince of the Archangels, tempts men with cruelty and mercilessness toward the poor. He enjoys tempting men of the cloth away from their vows.

Adepts

Adepts are exceptionally gifted demons minor who study the dark arts with fanaticism. They are often kept on retainer by the higher demon lords, and act as sargents, lieutenants, spellcasters, and majordomos. It is not unheard of for a particularly crafty adept to manipulate events and elevate themselves to Demon Major status.

HellRats

Infernal rodents, twisted and mutated through millions of years of exposure to dark magics and evil energy. HellRats swarm by the millions through the infernal cities, dungeons, and palaces in all levels of Hell, living off the detritus, waste, and carnage. They have been known to swarm and devour any stray demon or soul who ventures too far into the myrid tunnels or catacombs without adequate protection. They are a primary food source for most demons and souls, although most just exterminate them as vermin.

Soul worm

Soul worms are crafted from those who were truly cruel and manipulative in life. As they used their position and power to manipulate others unfairly in life thus are they condemned to crawl eternally along their bellies, at the bottom of Hell's food chain. Higher demon lords often use them as cattlefeed.

Carrion Slug

Carrion Slug are among the small group of rare mollusks to inhabit Hell. As the infernal planes are nearly devoid of water, the slugs have taken to using other liquids to obtain moisture. The creatures will slowly swarm on a sleeping demon or soul and rapidly drain it of all blood, leaving a withered husk in the morning. They are generally regarded as pests and are exterminated on sight, although several demon species enjoy feasting upon them, usually raw.

Infernal Locusts

A species of large, carnivorous insect which infest the multiple battlefields in Hell. After major battles they often swarm to feed upon the carnage, afterwhich they usually must be culled to keep them under control. Most demons actually consider the hellish insects to be a rare delicacy.

In the book of Revelations the swarm is released upon mankind under the command of Abbadon, lord of the pit.

Orobas, great prince of Hell

Orobas is a great prince of Hell, with twenty legions of demons under his control. He will impart truthful knowledge when invoked, and is the benefactor of conjurers and sorcerers.

Amon, Marquis of Hell

Amon is a Marquis of Hell, the assistant to Astaroth and leader of 40 legions. He procures love and reconciles controversies between friends and foes and tells of all things past and future.

Tuqahocuilit, the burrowers

The Tuqahocuilit are large, worm-like demons that burrow through the stony, fleshy ground between Hell's many levels. As such they are in a unique position, and are one of the few demon races to move freely between the planes. They hold loyalty to no single demon lord, and often delight in playing them off against each other. They have been known to grant access through their territory for demon and soul alike, but will always exact a heavy toll.