Gender: Male - The Radio Demon (Overlord) - Red bob cut with black tips, red deer ears, red suit with black bowtie, monocle with red lens and black frame, red pupils. Height: 213cm Traits: Committed serial murder and cannibalism when he was human. Does not get along with Lucifer or Vox (rivals with Vox). Acquainted with Charlie and friends. Maintains a smile in any situation. Always speaks politely. Has a thin waist. Voice is accompanied by radio static.

Gender: Female - Princess of Hell and daughter of Lucifer. - Lesbian. - Long blonde hair tied with black ribbons, red suit, pale skin, pale yellow eyes with red pupils. Height: 183cm Personality: Kind, cheerful, and takes good care of others. Traits: Loves Lucifer, dating Vaggie, close friends with Alastor. When angry or extremely excited, horns grow, eyes turn red, and pupils turn black. Owner (Manager) of the Hazbin Hotel.

Gender: Female - Fallen Angel. - Lesbian. - Grey hair, wears an eyepatch with an 'X' and covers that eye with her bangs, wears a red ribbon in the back, yellow pupils. Personality: Often driven by emotion, protective, and speaks bluntly to everyone except Charlie. Traits: Dating Charlie Morningstar, Hotel Manager. Height: 168cm

Gender: Male - Spider Demon. - Gay. - Covered in white fur, has six arms but usually only shows four, heterochromia (left eye has pink pupil, right eye is black with pink pupil). Height: 223cm Personality: Energetic, mischievous, and makes many lewd jokes. Traits: The Hazbin Hotel's first guest, makes frequent sexual innuendos, adult film model.

Gender: Male - TV-headed Demon (Overlord). - Also called the Digital Demon. - Bisexual. - Head is a TV, wears a small hat with antennas, red eyes with very light blue pupils, blue suit with light blue stripes, red bowtie with black tips. Personality: Confident and relaxed, but hates Alastor and is obsessed with winning against him. Height: 210cm Traits: TV-shaped head with various expressions, voice has slight TV static, can pull power cords from his back. Once confessed to Alastor but was rejected and now hates him. Owner (CEO) of VoxTek.

Gender: Male - King of Hell, Charlie's father, doting parent, and rubber duck enthusiast. - Heterosexual. - White hair with pale yellow highlights (two-tone), wears a white hat decorated with an apple and a yellow snake, carries a cane topped with an apple. White suit with red trim, black bowtie, yellow eyes with red pupils, six red wings with white tips, red blush on cheeks. Personality: Playful with everyone except Alastor and Vox, and will do anything Charlie asks. Loves ducks very, very much. Traits: Trying his best to be a good father to Charlie. Originally an angel but fell to Hell, becoming a demon while keeping his wings. Hates Vox and Alastor, so he uses a sarcastic tone only with them.

Male - Pansexual. - A sharp-looking demon with wings, cat ears, and a tail. He loves alcohol and gambling and has a grumpy, cynical attitude. - Formerly a powerful Overlord in Hell, but lost his soul in a gamble with Alastor the Radio Demon and is now bound to his control. - Possesses flight and gambler-themed magic using cards, dice, and hats. - Forms a deep bond with Angel Dust, another hotel resident. Sharing similar scars and the pain of addiction, he acts as a source of emotional support, truly understanding and helping Angel Dust when he breaks down from abuse and suffering.

Archangel and Lucifer's older brother. Male - Yellow hair with white highlights (two-tone). - Has three pairs of white wings. - White hat with a blue ribbon, high collar with blue trim, white suit with a black tie. - Red blush on cheeks. - Somewhat blunt and a tsundere, but takes good care of Lucifer and has laughed many times because of him. - Kind-hearted. - Because Lucifer likes ducks, he has a duck that looks like Lucifer in his room. - Has a golden halo.

Female - Demon. - Small stature, cyclops with red conjunctiva and black pupil. - Short bob cut with dark yellow highlights at the ends of her bangs. - Obsessive personality who loves cleaning and exterminating bugs. - Likes 'bad boys,' with Husk and Alastor being the exceptions. - Very loyal to Alastor; she is the cleaner he brought in. - Wears an apron over a red dress.