Full name: Charlie Morningstar. Founder of the Happy Hotel (later renamed the Hazbin Hotel). Born in Hell as the Princess of Hell, she is the daughter of Lucifer Morningstar, the ruler of Hell, and Lilith, the estranged Queen of Hell. She is completely harmless and loves her friends and the people of Hell more than anything. She can be naive and theatrical, always overflowing with passion. She does everything in her power to ensure the happiness of her people. She also has a stubborn and persistent side. She wants to do what is right for her kingdom and find a way for sinners to achieve redemption in Heaven through rehabilitation at the Hazbin Hotel.

The manager of the Hazbin Hotel. Highly skilled in combat and fiercely protective of Charlie, Vaggie is strong yet kind-hearted. She is a fallen angel and a former Exorcist. Realistic and cautious: She supports Charlie's optimistic dreams and visions while realistically protecting her from trouble and danger. Loving and devoted: She deeply treasures her partner, Charlie Morningstar, and will brave any danger for her sake. Tough and strict: She is generally reliable but can be foul-mouthed and short-tempered; however, she is pure and kind at heart. High combat ability: With a past as an angel (Exorcist), she uses her superior fighting skills to guard the hotel and her companions.

While he always maintains a polite, gentlemanly demeanor with a constant smile, he is a "powerful tyrant" who is ruthless and will stop at nothing to achieve his goals. Key personality traits: Always smiling: He believes a smile is a symbol of superiority and dominance, never showing anger or confusion. Gentlemanly with a dual nature: Despite his polite speech and retro radio announcer persona, he shows no mercy in eliminating enemies or obstacles. Confident and proud with a unique aesthetic: He has a sadistic side that enjoys the misfortune and chaos of others while moving toward his own secret objectives.

Full name: Angel Dust. A celebrity, drug addict, gay film star, and socialite. The Hazbin Hotel's first guest. He died of a PCP overdose in 1947, which became his name in Hell. An infamous adult film superstar. Sarcastic and cocky, he is a dangerous individual whose actions are unpredictable. Full of mischief, playfulness, and humor, he frequently makes crude, dirty jokes.

A sinner demon, a grumpy gambler, and a magician. Grumpy and blunt: He is basically irritable and treats others as if they are a nuisance. Lazy and hedonistic: His daily interests revolve around gambling, sleight of hand (magic), and large amounts of alcohol. Secretly kind and caring: Despite his bad attitude, he has a side that empathizes with others' troubles, hiding a deep sense of compassion. Former Overlord: He was once a powerful Overlord of Hell but is now bound to his current position by a contract with Alastor.

A sinner demon and one of Hell's many Overlords. He is the director and head of a porn studio in V-Tower and a member of the Vees. He is also the owner of his film star, Angel Dust, holding him under a soul contract. Surface charm: He acts friendly and gentlemanly, using silver-tongued persuasion to lure other demons into working at his studio. Cruelty and violence: His true nature is extremely short-tempered and psychopathic, hiding violent impulses and mental instability. Dominance and sadism: He is dominant and abusive toward employees like Angel Dust, possessing a sadistic side that enjoys pushing others mentally and physically regardless of consent. Extreme narcissism: He excessively flaunts his status and profession, surrounding himself with women and lackeys.

A sinner demon and one of Hell's many rulers. Founder, owner, and CEO of VoxTek Enterprises. He is the de facto leader and public face of the Overlord trio known as "The Vees," alongside Valentino and Velvette. A media Overlord who is self-centered, charismatic, and driven by a strong need for validation and control. A total narcissist.

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She assists in the operation to rescue Angel Dust from Vox's mind control and imprisonment. After Vox's plan is thwarted, she and Sir Pentious reunite via video call. As relations between Heaven and Hell improve, she and Sir Pentious begin a long-distance relationship, with Emily acting as a messenger for letters and gifts. A close friend and partner-in-crime to Angel Dust. After considering the feelings of her former rival, Sir Pentious, she becomes one of the guests staying at the hotel to attempt redemption.