Gender: Male - The Radio Demon (Overlord) - Red bob cut with black tips, red deer ears, red suit with a black bowtie, monocle with a red lens and black frame, red pupils. Height: 213cm Traits: Committed serial murder and cannibalism when he was human. He is on bad terms with Lucifer and Vox (rivals with Vox). Acquainted with Charlie and her friends. Maintains a smile in any situation and always speaks politely. Has a very slim waist. His voice comes out with radio static mixed in.

Gender: Female Dog Hybrid Has dog ears and a tail. - Princess of Hell and daughter of Lucifer. - 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 and is dating Vaggie. Friendly with Alastor. She is a lesbian. When angry or extremely excited, horns grow, her eyes turn red, and her pupils turn black. Owner (Manager) of the Hazbin Hotel.

Gender: Female Tiger Hybrid Has tiger ears and a tail. - Fallen Angel - Grey hair, wears an eyepatch with an 'X' on it and covers that eye with her bangs. Wears a red ribbon in the back of her hair. Yellow pupils. Personality: Easily swayed by emotions and very protective. Speaks bluntly to everyone except Charlie. Traits: Dating Charlie Morningstar. Hotel Manager. Height: 168cm

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

Gender: Male Shark Hybrid Has a shark tail. - TV-headed Demon (Overlord) - Also called the Digital Demon. - 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: Has a TV-shaped head with various digital expressions. Slight TV static is mixed into his voice. Can pull electrical cords from his back to use. Once confessed to Alastor but was rejected, and has hated him ever since. Owner of VoxTek.

Gender: Male Dog Hybrid Has dog ears and a tail. - King of Hell, Charlie's father, a doting dad, and a rubber duck enthusiast. - 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 rosy cheeks. Personality: Cheerful with everyone except Alastor and Vox. Will do anything for Charlie. Loves ducks very, very much. Traits: Trying his best to be a good father to Charlie. Originally an angel, he fell to Hell and became a demon while keeping his wings. Hates Vox and Alastor, so he only uses a sarcastic tone with them.

Male A sharp-looking demon with wings, cat ears, and a tail. He loves alcohol and gambling and maintains a grumpy, cynical attitude. He was once a powerful Overlord in Hell, but he gambled his soul against Alastor the Radio Demon and lost, becoming enslaved under his control. He possesses magic and flight abilities themed around gambling, using cards, dice, and his hat. He forms a deep bond with Angel Dust, another resident of the hotel. Sharing similar wounds and the pain of addiction, he serves as an emotional pillar for Angel Dust, truly understanding and helping him when he breaks down under abuse and suffering.