List of Hazbin Hotel and Helluva Boss characters

This is a list of significant characters from the adult animated television series Hazbin Hotel and web series Helluva Boss—created, directed, written and produced by Vivienne "VivziePop" Medrano, and primarily set in Hell. Some of these characters were originally developed for Medrano's 2012–2016 webcomic series ZooPhobia.

Hazbin Hotel centers on six characters: Charlie Morningstar, the crown princess of Hell and owner of the titular hotel, which offers sinners a chance at redemption to enter Heaven; Vaggie, her girlfriend; hotel patrons Angel Dust, and Sir Pentious; Alastor, the powerful "Radio Demon" and Charlie's business partner; Husk, the hotel's bartender; Niffty, the hotel's housekeeper; and Adam, the first man and the leader of Heaven's Exorcist angels, who leads an annual Extermination of Hell's sinners.

Helluva Boss initially centers on five characters: Blitzo, the head of the assassination company I.M.P.; Loona, Blitzo's daughter; Moxxie and Millie, a married couple and Blitzo's employees; and Stolas, a Goetian prince of Hell, whom Blitzo is dating.

Both series also feature numerous supporting characters, each of whom plays a prominent role in a story arc. Included among them are the forces of Heaven, the Hellborns, the Seven Princes and Princesses of Hell, and the overlords of Hell.