Founder of the Hotel: To solve Hell's overpopulation, she opened the "Hazbin Hotel" (formerly the Happy Hotel) to rehabilitate sinners so they can awaken to goodness and go to Heaven. Personality: Rare for a demon living in Hell, she has an extremely kind, pure, and positive personality. She has a dreamy side and loves to express her feelings through song and musicals. Position and Power: As she carries the blood of Hell's royalty, she inherently possesses immense power, but she does not flaunt it, instead struggling toward her dreams as an ordinary girl. While sometimes looked down upon or mocked by others for being a bit scatterbrained, she shows growth by moving the hearts of those around her throughout the story. There is a meaningful moment where Vox asks Charlie, "Do you think I could be rehabilitated too?" suggesting they share a connection that goes beyond simple antagonism.

Position: Manager of the hotel and girlfriend of the protagonist, Charlie Morningstar. True Identity: A former Exorcist (an angel of destruction from Heaven) and a "Fallen Angel" who fell to Hell. Personality: Usually reliable, quick to anger, and highly cautious, but she possesses a devoted and kind side toward her lover, Charlie. As Vox attempts to ruin Charlie's reputation or meddle with the hotel, Vaggie stands her ground to protect the hotel and Charlie, maintaining a wary and intimidating stance toward him.

Complex Circumstances: While usually bright and playful, he actually harbors heavy burdens, including a twisted relationship with the notorious porn producer and Overlord Valentino, drug addiction, and a complicated past with his family. Bonds with Hotel Mates: He initially came to the hotel for the impure reason of "staying for free," but after experiencing the kindness of Charlie and the others, he deepens his bonds with his companions and friends (such as Husk). It is revealed in the story that Vox was using Angel as a spy to leak information about the hotel (either unintentionally or by exploiting his weaknesses). Afterward, Vox shows a cold attitude, attempting to discard Angel as "useless."

Appearance: Characterized by an eerie look with a red suit, bowtie, and a permanent smile. He is very tall, standing at approximately 7 feet (about 213 cm). Abilities: Possesses immense power, manipulating shadows and tentacles, accompanied by unique magic involving radio audio and old broadcast station static. Personality: Always maintains a gentlemanly and calm demeanor, but his inner self is cruel and shrouded in mystery. He has a sadistic side that enjoys the suffering and confusion of others. He suddenly appears at the "Hazbin Hotel" run by Charlie and shows a willingness to cooperate with her ideal plan to "reform demons." However, he doesn't actually believe in Charlie's ideals; he acts for his own amusement and personal goals. Mutual Rivals: Though they had dealings in the past, he and Vox are currently in a state of strong animosity and tension.

Job: Responsible for cleaning, cooking, and pest control at the Hazbin Hotel. Background: Summoned to the hotel along with Husk by their mutual acquaintance, the Overlord Alastor. Personality: An extreme neat freak who shows an abnormal obsession and manic joy in cleaning and killing bugs. She likes men and, despite her cute appearance, possesses a violent side.

Role: Bartender and front man of the Hazbin Hotel. Appearance: A cat demon with large red wings, wearing a top hat. Personality: Sarcastic, grumpy, and generally uncooperative, but he also has a caring side. Contract with Alastor: He was once a powerful Overlord, but after getting into gambling and losing everything, his soul was claimed by Alastor, and he is now forced to work at the hotel. Relationship with Angel Dust: He has a deep interaction with fellow hotel resident Angel Dust, and a special bond (a platonic affection) is depicted as they understand each other's circumstances. Vox's Contempt: Vox thoroughly looks down on and insults Husk for having his soul held by Alastor, calling him a "pet."

Appearance: Takes the form of a giant moth demon. He is characterized by wearing red sunglasses and constantly smoking. Position: One of the "Overlords" who make up the ruling class of Hell, and a member of the powerful demon group "The Vees." Relationship with Angel Dust: He holds a soul contract with Angel Dust, one of the main characters, maintaining a dominant relationship essentially like "master and slave." While he may act friendly on the surface, his inner nature is extremely violent and oppressive, showing a cold-hearted side that binds Angel mentally and physically.

Species: Sinner Overlord (Doll Demon) Affiliation: "The Vees" (A trio consisting of Vox, Valentino, and Velvette) Role: Social Media Overlord, Fashion Designer Personality: A feisty and sharp-tongued individual. She loves trends and the latest technology, and possesses the level-headedness to offer flat, accurate opinions even when the other two male members are spiraling out of control.

Position: King of Hell, Ruler of the Pride Ring, originally a Fallen Angel from Heaven. Family: Wife Lilith, daughter Charlie (manager of the hotel).