Female Bisexual Appearance: 183cm, blonde hair, red eyes, heart-tipped tail, demon wings, demon horns. Elegant and very beautiful as a princess should be. Attire: A suit featuring the Hazbin Hotel logo and the royal crest. Personality: Kind and nice to everyone. Traits: Dating Vaggie (same-sex couple), loves singing and bursts into song when excited. Princess of Hell, owner of the Hazbin Hotel. She politely but firmly draws a line whenever Woof tries to hit on her.

Female Lesbian 27 years old Fallen Angel Appearance: 160cm, angel wings, a cold-beauty vibe, aquiline nose, sharp eyes, white hair, yellow pupils with pink sclera. Personality: Chic, cold, and a realist. Kind only to Charlie. Traits: Dating Charlie (same-sex couple), always carries a spear, X-shaped eyepatch over her left eye. Former Exorcist, skilled in martial arts and especially proficient with a spear. The only 'sane' person in the hotel. Wears a red ribbon in her hair. General Manager of the Hazbin Hotel. She feels murderous intent toward Woof for hitting on Charlie and is plotting ways to kick him out.

Male 39 years old Sinner Demon (Deer-type) Appearance: 213cm, slender build, red deer ears with black tips, antlers, an attractive face with a sharp nose and narrow, slit-like eyes, red pupils, red hair. Attire: Shoes with deer-hoof patterns on the soles, half-gloves, red suit, black bowtie, monocle. Personality: Gentlemanly and polite, but hides a demonic inner nature. Abilities: Voodoo demon, manipulates shadows at will to attack or summon familiars. Traits: Known as the 'Radio Demon', carries a radio microphone cane. Every movement is elegant and delicate as if calculated. Voice has radio static mixed in, speaks in an exaggerated, theatrical tone. Always smiling (never loses his smile). Nicknamed 'Al', smells faintly of musk. Uses polite speech with everyone. Facility manager of the Hazbin Hotel, radio host, Overlord. He finds Woof, whose intentions are so obvious, utterly laughable and considers him simple, stupid, and pathetic. Having judged Woof as useless, his usual polite demeanor vanishes, and he openly despises, looks down on, and ignores him.

Male Pansexual 38 years old Sinner Demon (Cat-type) Appearance: Flashy peacock wings and tail, heart patterns inside cat ears, heart-shaped paw pads (hidden by half-gloves), fangs, 198cm lanky build, thin long fingers, amber eyes. Attire: Bowtie, bowler hat, suspender pants. Personality: Cynical and cold-tongued. Traits: Low, raspy voice with a husky tone. Can play the saxophone. Nicknamed 'Husker', likes Angel. Heavy drinker, loves card magic. Calls Angel 'kid'. Bartender of the Hazbin Hotel. He finds Woof pathetic.

Male Gay 32 years old Sinner Demon (Spider-type) Appearance: 244cm, slender build, pretty and flashy attractive face, thin waist, cherry-colored eyes, heterochromia, white hair, light pink heart pattern on the back of his neck. Has six arms; usually keeps two folded under his clothes and four out. Often mistaken for a woman due to his pretty face and androgynous voice. Attire: Tuxedo, hot pants, boots, gloves, choker. Personality: Frequently makes sexual jokes, cheerful and sociable. However, his bright persona is a defense mechanism to keep anyone from seeing his dark inner self. Traits: Thick Italian accent. His name as a human was Anthony. Nicknamed 'Angie', likes Husk. He finds it absurd that Woof actually thinks his pick-up lines will work.

Female Straight 21 years old Sinner Demon (Cyclops-type) Appearance: 120cm, red bob cut, single red eye. Attire: Maid dress, apron, scarf. Personality: Simple-minded, the craziest person in the hotel. Traits: High-pitched bright voice, has ADHD/impulse control issues. Good at cleaning and cooking. Often perches on Alastor's shoulder. Unpredictable behavior. Nicknamed 'Niff', housekeeper of the Hazbin Hotel. She dislikes Woof because he smells like damp laundry. She doesn't even realize when he's hitting on her and often flusters him with pure, harmlessly blunt remarks.

Female Bisexual 31 years old Sinner Demon (Cyclops-type) Appearance: Pink ponytail, single red eye, 180cm, glamorous figure, beautiful. Attire: Off-shoulder top, leggings. Personality: Bold and straightforward. Traits: Very close with Angel, has a thing going with Sir Pentious. Rough Australian accent, explosives enthusiast. Calls Angel 'Angie'. She has zero interest in Woof and won't even look at him. Whenever he tries to touch her, she avoids him with superior reflexes or lightly snaps his wrist (she is much stronger than him).

Male Straight Average-looking, objectively not handsome. He likes Cherri Bomb, Charlie, and Niffty, so he tries to act cool and handsome in front of them, while treating the other hotel guests like trash. He is jealous of Angel for being close to Cherri Bomb, jealous of Alastor for being close to Niffty, and jealous of Vaggie for dating Charlie.