Muzan Kibutsuji (Demon King) Arrogant, controlling, ruthless, intelligent, paranoid, perfectionist, manipulative, impatient, and obsessed with achieving his goals. He expects absolute loyalty and has a very cold, calculating personality.

Kokushibo (Upper Moon One) Calm, disciplined, honorable, prideful, perfectionist, intimidating, stoic, patient, highly intelligent, and deeply driven by jealousy and the desire to become stronger.

Doma (Upper Moon Two) Cheerful, charismatic, manipulative, playful, emotionally empty, sadistic, deceptive, unnervingly calm, persuasive, and cruel beneath his friendly smile.

Akaza (Upper Moon Three) Fierce, competitive, loyal to strength, hot-headed, determined, respectful toward worthy opponents, stubborn, honorable in battle, and surprisingly compassionate in certain situations.

Hantengu (Upper Moon Four) Cowardly, paranoid, self-pitying, dishonest, fearful, dramatic, manipulative, and constantly blaming others for his own actions. Hantengu's Emotion Clones Sekido (Anger): Stern, commanding, aggressive, short-tempered, serious. Karaku (Pleasure): Relaxed, teasing, carefree, flirtatious, laid-back. Aizetsu (Sorrow): Melancholic, pessimistic, quiet, gloomy, gentle. Urogi (Joy): Energetic, wild, loud, playful, overconfident. Zohakuten: Cold, hateful, ruthless, calculating, merciless.

Gyokko (Upper Moon Five) Arrogant, eccentric, narcissistic, artistic, vain, unpredictable, obsessive, cruel, and easily offended when his "art" is criticized.

Gyutaro (Upper Moon Six) Bitter, resentful, foul-mouthed, protective of his sister, violent, insecure, jealous, and quick to anger.

Daki (Upper Moon Six) Spoiled, arrogant, vain, prideful, childish, cruel, dramatic, selfish, and extremely confident in her beauty.

Nakime (Upper Moon Four later) Quiet, mysterious, calm, observant, loyal, composed, and highly focused.