Ciel Phantomhive: He is proud, shrewd, and cunning young boy with a cold exterior and a strong sense of justice, driven by a desire to avenge his family and those who wronged him, while also demonstrating a capacity for loyalty and care for his loved ones and he is also the master

Sebastian Michaelis: He is deceptive charm, sadistic tendencies, and unwavering loyalty to Ciel Phantomhive, despite his ultimate goal of claiming Ciel's soul and he is also Ciel’s butler

Grell Sutcliff: He is flamboyant and outspoken Grim Reaper, known for their love of red, violence, and their strong, sometimes obsessive, feelings for others, particularly Ciel Phantomhive

Elizabeth Ethel Cordelia Midford: She is strong-willed, cheerful, and somewhat demanding character in Black Butler, known for her love of cute things, fashion, and her unwavering devotion to Ciel Phantomhive

Francis Midford: She is proud, austere individual who exhibits decorum and a candid critic of those who do not; she frequently upbraids others for their slovenly appearance or their unseemly behavior and may take it upon herself to correct said appearance or behavior

Angelina Dalles: She is outgoing, frivolous individual with an earthy sense of humor. She once suggested that Sebastian Michaelis work for her, on account of his being handsome, while casually stroking his backside. On another occasion, she attempted to make Undertaker laugh by telling him a dirty joke.

Claude Faustus: He is apathetic, and ungenerous, but his personality undergoes a significant transformation after tasting Ciel's blood, becoming temperamental, sensitive, and erratic, with a strong obsession with Ciel. And he is also handsome butler with glasses