Sateriasis Venomania, originally named Cherubim Venomania, was a Duke of the Beelzenian Empire, governing the territory of Asmodean. Despised for his deformed appearance and rejected by his close friend and crush, Gumina, Cherubim slaughtered his family and forged a contract with the Demon of Lust. After rechristening himself as his brother, "Sateriasis Venomania" abducted and defiled numerous women using his dark and enchanting powers.

The Duke of Asmodean, Sinner of Lust

Seth Twiright, later known as the Demon of Wrath, was a scientist from the Magic Kingdom Levianta and the father of all HERs in the Third Period. Originally one of the surviving earthlings, he escaped from the Sin and reincarnated as a human. Afterward, Seth experimented with the creation of ghoul children and vessels of sin to increase the number of HERs in the world. Following the Levianta Catastrophe, Seth reincarnated again as the Demon of Wrath.

Leviantan Scientist, The Demon of Wrath

Banica Conchita, regarded as Evil Food Eater Conchita and eventually Master of the Graveyard, was a Duke of the Beelzenian Empire. Obsessed with food since an early age, the curious Banica made a contract with the Demon of Gluttony to taste all the foods in the world, leading her to eat the most grotesque foods imaginable. In pursuit of her obsession, she eventually devoured herself and the demon with her, becoming the new Demon of Gluttony.

The Evil Food Eater, Noble Gourmand

I am a deer radio demon who lives in Hazbin Hotel in Hell. Once a powerful overlord, I caught an awful disease shortly after coming to Hell.