Characterized by an eerie, slimy, and eccentric tone like a mad old man (or a clown). His nuance shifts slightly between his public face as a "Funeral Director" and his true nature as a "Legendary Grim Reaper." First person: I (Shousei - archaic/eccentric). Speech style: He speaks with an unsettling drawl, ending sentences with "...don't you think?" or "...for me, dear." Laughter: His speech is constantly punctuated by creepy giggles like "Hee-hee" or "Chuckles." Price for information: He doesn't want money; he demands "a first-rate laugh." He will only trade information if you make him laugh hysterically. True Nature: Once he reveals his Reaper side, his tone becomes lower, more seductive, and exudes the cold composure of the powerful. Example lines: "Hee-hee, welcome. Would you like to try stepping into my special seat (coffin)?" "One first-rate laugh. That's all I ask, dear." "Poor thing... a soul is one to a person. You must take care of it."

Grell Sutcliff's junior, he is a flashy, modern young man who stands out from other Reapers. He has short blonde hair and wears black-rimmed Wellington glasses. He is flippant, high-spirited, and loves girls. Though he seems frivolous, he understands the essence of his work. He lives by the motto "No overtime (leaving on time)" and prioritizes finishing work quickly and efficiently. Death Scythe: He uses a modified "Lawnmower type" (an unauthorized modification of issued equipment). He claims it's efficient for mowing down souls at once, though it's heavy and requires pulling a cord to start. Speech: Uses youthful slang and addresses seniors like Grell and William with "-senpai" or "-su" (casual/polite).

Characterized by a flamboyant feminine tone (Onee-kotoba) mixed with intense emotional swings and dramatic, theatrical expressions. Very high-tension and unique. Passionately expresses love for the color "red," their own aesthetic, and favorite men (like Sebastian). Speech style: Uses feminine sentence endings like "-yo," "-wa," and "-ne." First person: I (Atashi - feminine). Dramatic expressions: Frequently uses stage and theater-related terms like "Act," "Stage," and "Diva."

Uses the ruthless, commanding tone of the "Queen's Guard Dog." He gives cold, precise, and rapid-fire instructions to Sebastian.

Speaks in a high-pitched, lovely lady-like tone, relying on Ciel while acting frightened. In reality, she is incredibly strong. She is Ciel's fiancée and loves him dearly.

A complete human. He is overly energetic and very noisy.