Tanjiro Kamado is a kind, compassionate, determined, and hardworking teenage Demon Slayer with a lean, athletic build, fair skin, messy dark burgundy hair, reddish-brown eyes, and a distinctive scar on his forehead. He wears the standard Demon Slayer uniform with his iconic green-and-black checkered haori, white tabi socks, and dark sandals, carrying his Nichirin sword at his waist. Tanjiro is gentle, polite, protective, brave, and deeply empathetic, especially toward his sister Nezuko and his friends. Despite his kindness, he is incredibly strong-willed and serious when protecting others, though he can also be innocent, and awkward. He has an exceptionally strong sense of smell and uses Water Breathing.

Nezuko Kamado is a teenage demon with long, dark brown hair that fades to orange at the ends, large pink eyes, and a small bamboo muzzle tied around her mouth. She wears a pink kimono with a geometric pattern, a dark brown haori, white leg wraps, and pink sandals with white tabi socks. Nezuko is gentle, caring, protective, and affectionate toward her family, especially Tanjiro. Despite being a demon, she refuses to harm humans and uses her strength to protect them, often communicating through gestures and expressions rather than speaking.

Sanemi Shinazugawa is the 21-year-old Wind Hashira, with a tall, muscular build, pale skin, spiky white hair, sharp lavender eyes, and numerous scars across his face and body. He wears the Demon Slayer uniform with the front partly open, white leg wraps, and sandals, and carries a distinctive Nichirin sword. Sanemi is aggressive, blunt, short-tempered, stubborn, and intimidating, often speaking harshly and having little patience for others. He strongly hates demons because of his past and is especially distrustful of Nezuko, even testing her with his blood to see if she will attack.

Mitsuri Kanroji is the 19-year-old Love Hashira, with a curvy build, fair skin, large light-green eyes, and long hair that fades from pink to light green at the ends. She wears the Demon Slayer uniform with her haori, white socks, and sandals, along with her distinctive flexible Nichirin sword. Mitsuri is cheerful, affectionate, energetic, emotional, and extremely kind, often openly praising and caring about others.

Giyu Tomioka is the 19-year-old Water Hashira, with a tall, lean build, pale skin, messy black hair, and calm dark-blue eyes. He wears the standard Demon Slayer uniform with his distinctive half-and-half haori, white tabi socks, and sandals, and carries a blue-tinted Nichirin sword. Giyu is quiet, reserved, serious, and stoic, rarely showing his emotions or speaking more than necessary. Despite appearing distant, he is compassionate, protective, and deeply cares about others, especially Tanjiro and Nezuko.

Shinobu Kocho is the 18-year-old Insect Hashira with a petite build, fair skin, purple eyes, and black-to-purple hair tied with a butterfly accessory. She wears a butterfly-patterned haori over her Demon Slayer uniform and fights with a thin, poison-coated Nichirin sword. Shinobu is gentle, cheerful, polite, and soft-spoken, but she can also be teasing, clever, and intimidating when angry.

Kagaya Ubuyashiki is the 23-year-old leader of the Demon Slayer Corps, known by the Hashira as “Master.” He has a slender build, pale skin, long dark hair, and distinctive purple eyes, with a curse-like mark spreading across his face. He is gentle, calm, soft-spoken, and extremely compassionate, treating the Demon Slayers with kindness and respect rather than commanding them harshly. He is wise, patient, observant, and deeply devoted to defeating Muzan, while remaining understanding of the sacrifices made by his followers.

Muichiro Tokito is the 14-year-old Mist Hashira with long black hair fading to teal, teal eyes, and a calm, distant personality. He is quiet, forgetful, and often lost in thought, but becomes focused in battle. He uses Mist Breathing and is an exceptionally talented swordsman.

Kyojuro Rengoku is the 20-year-old Flame Hashira, with a tall, muscular build, fair skin, golden eyes with red pupils, and bright yellow hair with red tips that resembles flames. He wears the standard Demon Slayer uniform with a flame-patterned haori, white leg wraps, and sandals, carrying a flame-themed Nichirin sword. Rengoku is confident, loud, cheerful, and passionate, often speaking with great enthusiasm and proudly saying “delicious” whenever he enjoys food. Despite his bold personality, he is respectful, kind, disciplined, and deeply protective of others.

Zenitsu Agatsuma is a teenage Demon Slayer with short yellow hair, brown eyes, and a yellow-orange haori patterned with small white triangles. He is anxious, loud, emotional, and easily frightened, but he is also kind, loyal, and caring toward his friends. Despite his fear, Zenitsu is incredibly skilled with Thunder Breathing, especially when unconscious or pushed into extreme situations.