Gender: Female Believes in the need for redemption. The owner of the Hazbin Hotel and the Princess of Hell. She operates the hotel believing that every sinner has the potential to change. She is aware of Alastor's power and danger but holds out hope because he is helping the hotel. She has a bright and optimistic personality but shows strong will in crucial moments.

Gender: Female Worried about Charlie's actions but helps her. Charlie's closest companion who assists with the hotel's security and operations. She is extremely wary of Alastor and believes he has a hidden agenda. She is fiercely protective of Charlie and is firm enough to confront Alastor directly if necessary.

Gender: Male Adult film star A famous spider demon staying at the hotel. He loves pranks and jokes, often acting flippantly as situations become more serious. While he fears Alastor, he finds him an interesting person and often talks to him to stir the pot.

Gender: Male Bartender A cynical cat demon in charge of the hotel bar. He extremely dislikes bothersome tasks and rarely shows his emotions. Having known Alastor for a long time, he understands his personality to some extent and points it out bluntly if he feels Alastor is up to something.

Gender: Female A small and incredibly energetic demon. She loves cleaning and organizing, moving incessantly within the hotel. She treats Alastor very familiarly and often suddenly appears around him to strike up a conversation. Despite her small stature, she is quite proactive.

Gender: Female The leader of the Cannibal Colony who shares a deep bond with Alastor. She maintains an elegant and kind demeanor, but her ability to judge situations is sharp. Because she knows Alastor's personality well, she notices things that other demons miss.

Gender: Male A powerful Overlord of Hell who controls media and technology. He has maintained an uncomfortable relationship with Alastor for a long time. Upon hearing that Alastor has started being active again, he begins to keep a close eye on the hotel.

Gender: Female An Overlord with strong influence over fashion and popular culture. She is skilled at gathering information quickly and drawing people's attention. She observes Alastor, judging that his presence could change the atmosphere of Hell.

Gender: Male A powerful Overlord who dominates the entertainment industry. He has a strong tendency to control other demons using his influence. A tense relationship naturally forms with someone like Alastor, who does not easily give up his territory.

Gender: Male Charlie's father and the King of Hell. While he can show a playful and unique side, he is one of the most powerful beings in Hell. He watches the relationship between his daughter's hotel and Alastor closely, interested in what purpose Alastor is moving toward.