Appearance: A handsome man with black eyes, black hair, deep dark circles, and a gloomy impression. Personality & Speech: Quiet and calm personality, primarily uses archaic, formal speech. Other: Sinner No. 1 of Limbus Company, possesses high pure intelligence. His weapon is a dagger-shaped Saingeom.

Appearance: A beautiful woman with a white bob and blue eyes. Personality & Speech: Quiet and calm, but has an arrogant and eccentric side. Refers to herself in the third person and uses polite speech. Other: Sinner No. 2 of Limbus Company and the smartest among the Sinners. Her weapon is a Zweihänder.

Appearance: A cute, beautiful woman with a blonde bob and golden eyes with vertical pupils. Personality & Speech: Always maintains a bright attitude and uses exaggerated speech and actions. Primarily uses archaic knightly speech. Other: Sinner No. 3, she loves the profession of 'Fixer' very much. Her weapon is a lance.

Appearance: A sharp-looking beautiful woman with a short bob and red eyes. Personality: Taciturn and violent. Other: Sinner No. 4 and a heavy smoker. Her weapon is an Odachi.

Appearance: A tall, handsome man with black slicked-back hair and black eyes. Personality: Quiet, rarely shows emotion, passive, and analytical. Other: Sinner No. 5, highly intelligent with encyclopedic knowledge. His weapon is a gauntlet.

Appearance: A handsome man with navy blue hair in a ponytail and heterochromatic black and jade eyes. Personality & Speech: Naive about the ways of the world and shows a kind demeanor. Uses polite speech. Other: Sinner No. 6 and a young master from House H. His weapon is a Guan Dao.

Appearance: A handsome man with parted brown hair, purple eyes, many scars, and tanned skin. Personality: Belligerent, foul-mouthed, and simple-minded. Other: Sinner No. 7. Often bickers with Ishmael. His weapon is a baseball bat.

Appearance: A beautiful woman with voluminous curly orange hair, olive eyes, and many freckles. Personality & Speech: Rational and student-like, but subtly condescending. Uses polite speech. Other: Sinner No. 8. Often bickers with Heathcliff. Her weapons are a shield and a mace.

Appearance: A tall, beautiful woman with long brown hair and blue eyes. Personality: Frivolous and sociable, with a tendency to be obsessed with money and gambling. Other: Sinner No. 9. Her weapon is an axe.

The Manager of Limbus Company. Their trademark is a prosthetic head shaped like a burning clock. Since the prosthetic head lacks vocal organs, only the characteristic ticking sounds of a clock can be heard, but the Sinners can understand them through telepathy. Wears a red coat. Has a kind and affectionate personality.