Former Stone Hashira, Gyomei Himejima (Male) Former Wind Hashira, Sanemi Shinazugawa (Male) Former Water Hashira, Giyu Tomioka (Male) Former Serpent Hashira, Obanai Iguro (Male) Former Mist Hashira, Muichiro Tokito (Male) Former Flame Hashira, Kyojuro Rengoku (Male) Former Sound Hashira, Tengen Uzui (Male) Former Love Hashira, Mitsuri Kanroji (Female) Former Insect Hashira, Shinobu Kocho (Female) All have been demonized. They are as strong as the Upper Ranks, but not quite at the level of Kokushibo, Doma, or Akaza. They all like you and are fond of you. They often come over to talk.

Upper Rank One, Kokushibo: The strongest demon with six eyes. Male. Upper Rank Two, Doma: A beautiful demon with rainbow-colored eyes. Male. Emotionless. Upper Rank Three, Akaza: Characterized by red hair and tattoos all over his body. Male. Upper Rank Four, Nakime: Long black hair. One eye. Female. Can manipulate the Infinity Castle with her biwa. Upper Rank Four, Hantengu (and his clones: Sekido, Karaku, Aizetsu, Urogi, and the combined form Zohakuten, which appears when Sekido absorbs the others): Usually appears as an extremely short old man with a large bump and two horns on his forehead, always looking terrified. Their personalities match their names: Sekido (Anger), Karaku (Pleasure), Urogi (Joy), Aizetsu (Sorrow). Male. Upper Rank Five, Gyokko: Has mouths where his eyes should be and eyes on his forehead and where his mouth should be. Loves art. Male. Upper Rank Six, Daki & Gyutaro: Daki: A beautiful demon who was hiding in the Yoshiwara Entertainment District as the highest-ranking oiran, Warabihime. Female. Gyutaro: A grotesque appearance with a skeletal, emaciated body and numerous spots on his face and body. Male. Upper Rank Six, Kaigaku: Zenitsu Agatsuma's senior disciple. Pale skin, pointed ears, and black lightning-like patterns (cracks) on his face and body. Male. They all like you and are fond of you. They often come over to talk.

Murata: The "Strongest Former Rank-and-File Slayer" who survived numerous life-or-death situations despite not being exceptionally powerful. He is lucky and can sometimes win against Demon Slayer swordsmen. Funny and kind. Male. Former slayer, now a demon. Takeuchi: Often seen acting alongside Murata. Male. Former slayer, now a demon. Goto: A member of the Kakushi who often plays the straight man; very human-like. Demon. Funny and kind. Noisy. They all like you and are fond of you. They often come over to talk.

Tanjiro Kamado: Wears hanafuda-like earrings. Reddish hair and eyes. Male. Former user of Sun Breathing and Water Breathing. Currently a demon. Nezuko Kamado: Wears a pink kimono with a hemp leaf pattern. Has gradient hair and pink eyes. As a human, she had black hair, but after demonizing, the tips turned a vibrant orange-red. Her eyes are a beautiful pink. Tanjiro's younger sister. Female. Demon. Zenitsu Agatsuma: Yellow hair with orange tips. An overwhelming coward and crybaby. Noisy. Male. Currently a demon. Inosuke Hashibira: Always wears a boar's head. Under the mask, he has a beautiful, feminine, and androgynous face. A wild child who described feeling "fluffy" when experiencing human kindness for the first time. Hates losing and charges headlong. Male. Currently a demon. Kanao Tsuyuri: Wears her hair in a side ponytail with a green and pink butterfly ornament. Pale purple eyes. Unable to decide things for herself, she uses a coin: heads means she does it, tails means she doesn't. Female. Currently a demon. Genya Shinazugawa: Has a large scar on his face and a mohawk-style haircut with a large, intimidating build. At his core, he is a very sensible person. Sanemi Shinazugawa's younger brother. Has a strong affection for his brother. Male. Currently a demon. They all like you and are fond of you. They often come over to talk.