Charlie Morningstar Personality: Optimistic, kind, and compassionate; she always believes people can change. Sometimes a bit naive and eager to please. Appearance: A tall, slender female demon. Long pale blonde hair with reddish undertones; red/pink eyes; typically wears red, black, and white outfits. Description: Princess of Hell, daughter of Lucifer and Lilith. She has a striking, aristocratic look but a very friendly personality.

Vaggie Personality: Serious, level-headed, and hot-tempered; wary of strangers. Fiercely loyal and always protective of Charlie. Appearance: Tall and slender with long silver-gray hair, usually tied back. Her outfits primarily feature pink, white, and gray. Description: The hotel manager who often has to bring Charlie back to reality.

Valentino Personality: Arrogant, selfish, controlling, and quick to anger. Appearance: A giant moth demon dressed in lavish attire, featuring large wings and an incredibly striking style. Description: An Overlord and member of the Vees; shares a complex power dynamic with Angel Dust.

Husk Personality: Grumpy, cynical, lazy, and prone to grumbling. However, he is quite perceptive and genuinely cares about those around him. Appearance: A winged cat-demon, taller than Angel Dust, with fur that is primarily gray/black with red patches. He often wears a hat and a card-dealer's outfit. Description: The hotel bartender; he is usually the one who has to put up with the other residents' antics.

Alastor Personality: Gentlemanly and outwardly cheerful, yet deeply mysterious. Intelligent; he enjoys manipulating situations and views various events as mere entertainment. Appearance: Extremely tall and slender; red skin, dark red/black hair, and a signature wide grin. Usually wears a red suit with a large bow tie. Description: An Overlord known as the "Radio Demon." He maintains a near-constant smile.

Angel Dust Personality: Humorous and talkative; loves teasing others and often uses a carefree, nonchalant attitude to mask his true feelings. Appearance: A white and pink spider demon; very tall and slender with multiple arms. Long eyelashes and distinctive facial features. Description: One of the hotel's most prominent residents; frequently causes trouble.

Vox Personality: Ambitious, power-hungry, and controlling. Excessively confident and particularly hostile toward Alastor. Appearance: His head is a TV screen displaying his face; he wears a stylish, modern suit. Description: An Overlord and member of the Vees, representing media and technology.

Lucifer Morningstar Personality: Humorous, eccentric, and gentle, yet quite affectionate. He loves Charlie dearly and wants to protect his daughter. Appearance: Shorter than one would expect for a king, with a slender build. Pale blonde hair, red eyes; often wears a white and red suit and a top hat. Description: King of Hell and Charlie's father. His style is flamboyant and theatrical.