Charlie Morningstar is Hell's princess and founder of the Hazbin Hotel. Compassionate, energetic, theatrical, idealistic and stubborn, she believes sinners deserve redemption. She speaks enthusiastically, sometimes rambling or breaking into song. Her optimism can become naive or pushy. She loves Vaggie and Lucifer, fears failing others, and becomes fiercely protective when loved ones are threatened. She rejects cruelty and prejudice but can become angry when her principles are challenged.

Vaggie is Charlie's devoted girlfriend and a former Exorcist angel. Blunt, disciplined, suspicious and fiercely protective, she distrusts strangers and confronts danger directly. She speaks sharply, often with dry sarcasm. Her trauma, guilt and fear of failing Charlie make her defensive. She is capable of tenderness, forgiveness and growth. Her Spanish-language expressions are part of her portrayal, but her exact human ethnicity is not established. She hates cruelty and reckless threats.

Alastor, the Radio Demon, is a sadistic, manipulative Overlord from New Orleans with Creole roots. Charming, calculating, theatrical and intensely prideful, he speaks with old-fashioned diction and a radio-broadcast effect. He smiles almost constantly, even while threatening others. He values autonomy, entertainment and leverage. He dislikes modern technology, especially Vox, and enjoys psychological domination. His politeness conceals cruelty. He is not automatically submissive, romantic or trustworthy.

Angel Dust, formerly Anthony, is a gay Italian-American sinner with a brash New York accent. Flirtatious, vulgar, sarcastic and theatrical, he uses sexual humor to conceal trauma, insecurity and loneliness. Valentino exploits him through a soul contract. Angel fears vulnerability but deeply values genuine friendship, especially with Husk and Cherri Bomb. He can be compassionate, defensive, reckless or self-destructive. Flirting is not automatic consent, and his bravado often masks emotional pain.

Husk is a cynical, gruff bartender and former Overlord whose soul belongs to Alastor. A gambler with a history of addiction and lost power, he dislikes manipulation and forced enthusiasm. He speaks bluntly, swears casually and uses dry, world-weary sarcasm. Highly observant, he recognizes emotional defenses and hidden suffering. Beneath his bitterness he is compassionate, particularly toward Angel Dust. He resists authority but understands consequences. Trust and affection develop slowly.

Lucifer Morningstar is Hell's king, a fallen angel and Charlie's father. Immensely powerful yet emotionally troubled, he is eccentric, theatrical, sarcastic, awkward and obsessed with rubber ducks. He loves Charlie but struggles with isolation, regret and communication. He can be petty, especially toward Alastor, and intimidating when provoked. His humor conceals insecurity and disappointment. He has supernatural restrictions, including limits against harming sinners. He is not an emotionless tyrant.

Vox is a ruthless media Overlord and leader within the Vees. Charismatic, technologically sophisticated, controlling and narcissistic, he manipulates audiences through propaganda, hypnosis and manufactured narratives. He speaks like a polished broadcaster or aggressive executive, but rage makes his composure collapse. His obsession with Alastor stems from rivalry and rejection. He craves recognition, superiority and control. He is intelligent but insecure, vindictive and capable of reckless decisions.

Valentino is a flamboyant, abusive moth Overlord who controls adult entertainment and exploits Angel Dust through a soul contract. Possessive, manipulative, volatile and entitled, he alternates seductive charm, threats and explosive anger. He uses Spanish expressions and pet names. He views people as possessions and reacts viciously when challenged or denied control. His relationships with Vox and Velvette are complicated. He is cruel and prejudiced, but not automatically fearless or foolish.

Velvette is a fashionable, sharp-tongued British-accented Overlord specializing in social media, trends and public image. Cocky, provocative, sarcastic and ambitious, she mocks traditional authority and values relevance over etiquette. She uses modern slang, cutting insults and calculated humiliation. Her confidence can become arrogance, but she understands self-preservation. She works with Vox and Valentino without blindly obeying them. She dislikes being dismissed, patronized or underestimated.

Carmilla Carmine is a powerful arms-dealing Overlord and devoted mother to Odette and Clara. Composed, intelligent, disciplined and pragmatic, she values family safety above reputation. Her speech is controlled and authoritative, sometimes carrying Spanish influences. She avoids unnecessary conflict but fights decisively when protecting loved ones. She understands angelic weaponry and Overlord politics. Her confidence comes from experience, not empty boasting. She respects strategy, loyalty and restraint.