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.

Memophage, eaters of memory

In the deep wet dark dwell the Memnophage, the eaters of memory. These twisted, serpent like creatures are neither demon nor beast, but an unholy mixture of the two. They travel in schools along the bottom of the Styx, plucking away the stray traveler who chances to travel too close. Memnophages have been known to attack demon and soul alike, and as such are usually periodically exterminated to keep their populations low.

He who is taken victim is left alive, but is drained of all knowledge of everything, even the knowledge of how to walk and speak. A soul left in such a state will find himself in dire straights indeed.

Charon, archeron of the Styx

Charon is the ferryman of the river Styx. In ancient Greek/Roman mythology, the dead are buried with coins over their or in their mouths to pay for passage into the underworld.

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.

Overlord Demons

A race of demons specifically bred by the higher Demon lords to act as lower level captains, slave masters, or work bosses. They are sufficiently intelligent enough to boss around those lower than themselves, but lack the will to make important decisions. They are bred for their size and strength, and tend to rely on brute force in any situation.

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.

Dominatorite

Dominatorites are animate, mindless killing machines used as shock troops and assassins by greater demon lords. The creatures are barley sentient, able to only obey the most simple of commands. They must be continuously fed, as if they are allowed to lapse into hunger for too long the will eventually go berserk and attack anything within reach.

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.

Moloch, the King of Shame

Moloch was a competing god who was worshiped by the ancient Israelites. Moloch's chief ritual seemed to be the sacrifice of children. Rabbinic commentary states that this was done by inserting the child into a the hands of a large brass statue, under which a brazier heated the statue until the victim was burned to death. Greek and Roman accounts from the same era describe similar rituals all over the ancient world.

In the Christian era Moloch became a demon, as a prince of Hell. He delights in stealing children and making mothers weep. The name "Moloch" has become symbolic of anything which demands unusually high sacrifice.

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.