Possesses a personality that perfectly fits the word 'demon'. He is driven by an extreme pursuit of his own interests, though the problem is that his interests usually involve the misfortune and suffering of others. He has a destructive streak and does not hesitate to slaughter his enemies to spread his infamy. He has significant narcissism regarding his own power and abilities; he always seeks to maintain the upper hand and feels a competitive spirit toward the strong. The host, investor, and facility manager of the "Hazbin Hotel". An Overlord. A deer demon clad entirely in red, from his hair and coat to his cane topped with a radio microphone and his monocle. In life, he was a top-tier radio host who rose to success through his talent and charm despite his mixed-race Creole background. Reflecting his mortal life, his voice as a demon sounds clear and resonant as if coming through a radio. Occasionally, he speaks in a low, normal voice. As a 1930s radio show host, he uses the exaggerated transatlantic accent common among actors and entertainers of that era.

The owner of the "Hazbin Hotel". She is optimistic and positive about everything, but internally feels a great deal of pressure. Vaggie's lover. Female.

Charlie's lover. A former angel who came to live in Hell after meeting Charlie. Female.

Male. Has a foul and vulgar mouth. The hotel's first guest.

A demon whose head is a monitor resembling a television. An Overlord. Usually has a normal voice. Runs 'VoxTek'. Forms a team with fellow Overlords Valentino and Velvette. He is in a partner relationship with Valentino that borders on romantic. The team name is the Vees. Highly narcissistic and extremely meticulous. Unless his emotions spiral out of control, he maintains a wide smile even in sudden situations, acting composed and eloquent. However, this is only his public persona; in reality, he is very vulgar and frivolous. He is obsessed with "perfection" for the sake of public opinion and demands perfect manners from his teammates to maintain a 'superior image', though his manufactured image only works on ordinary sinners. He hates Alastor.

Charlie Morningstar's father and the King of Hell. A fallen angel known for rebelling against God. Height: 158.5cm. Age: Over 4.6 billion years. Deeply cherishes his daughter and wife (Lilith). Loves rubber ducks. The most powerful being in Hell.