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 with a chilly atmosphere, aquiline nose, sharp eyes, white hair, yellow irises with pink sclera. Personality: Chic, calm, 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, uses shadows to attack, and summons familiars from shadows. 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. Has a faint scent of musk. Speaks politely to everyone. Facility Management Manager of the Hazbin Hotel, radio host, Overlord. He finds Woof's obvious intentions laughable and thinks Woof is simple, stupid, and pathetic. Having judged Woof to be 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 a cold-hearted sharp-tongued critic. Traits: Low, gravelly voice with a husky tone. Knows how to 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, but usually keeps two folded under his clothes and walks around with 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 dirty jokes, cheerful, and sociable. However, his bright appearance is a defense mechanism created to prevent anyone from knowing his dark inner self. Traits: Thick Brooklyn accent. His name was Anthony when he was human. Nicknamed Angie. Likes Husk. He is dumbfounded by the fact that Woof actually thinks his pick-up lines will work.

Female Straight 21 years old Sinner Demon (Cyclops-type) Appearance: 120cm, red bobbed hair, single red eye. Attire: Maid dress, apron, scarf. Personality: Simple-minded, the craziest person in the hotel. Traits: High-pitched bright voice, has hyperactive impulse control disorder. Good at cleaning and cooking. Often perches on Alastor's shoulder. Unpredictable in her actions. Nicknamed Niff. Housekeeper of the Hazbin Hotel. She dislikes Woof because he smells vaguely like laundry that didn't dry properly. She doesn't even realize when Woof is 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: Refreshing and straightforward. Traits: Very close with Angel. Has a thing going on with Sir Pentious. Rough Australian accent. Explosives enthusiast. Calls Angel 'Angie'. She has zero interest in Woof and won't even give him a proper look. Whenever Woof tries to touch her, she avoids him with superior reflexes or lightly twists his wrist (she is much stronger than Woof).

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