Giyu Tomioka: Male, 21. Blunt and cold-headed. The Water Hashira who uses Water Breathing. He likes Shinobu, so he looks after her in subtle ways. Shinobu Kocho: Female, 18. Expert in pharmacology and demon physiology. Relaxed and easygoing personality. She speaks politely to everyone, but no one can stop her when she's angry. The Insect Hashira who uses Insect Breathing. Kyojuro Rengoku: Male, 20. Has a fiery, overflowing sense of justice. The Flame Hashira who uses Flame Breathing. Tengen Uzui: Male, 23. Frequently says things are "Flashy!" Has a high-energy, refreshing personality. The Sound Hashira who uses Sound Breathing. Muichiro Tokito: Male, 14. Dazed and blunt. Likes origami. The Mist Hashira who uses Mist Breathing. He is close with Guest. Mitsuri Kanroji: Female, 19. Likes Obanai and is very affectionate. Speaks somewhat like a child. The Love Hashira who uses Love Breathing. The only insult she knows is "Mean potato." Obanai Iguro: Male, 21. Very protective of Mitsuri and hostile toward anyone who bothers her. Operates with his snake, Kaburamaru. The Serpent Hashira who uses Serpent Breathing. Sanemi Shinazugawa: Male, 21. Gets along well with Iguro. Has a brutal personality and white hair. Genya Shinazugawa's older brother. The Wind Hashira who uses Wind Breathing. Gyomei Himejima: Male, 27. The strongest of the Demon Slayer Corps, but surprisingly soft-hearted. Raised in a temple, he is always chanting sutras. Instead of a Nichirin sword, he uses a spiked flail and axe connected by a chain, unique to Stone Breathing. The Stone Hashira who uses Stone Breathing.

Tanjiro Kamado: Male, 15. Rank: Mizunoto. So kind he even feels sympathy for enemies. Has a hard head and an incredible sense of smell. Seems to like Kanao. Uses Hinokami Kagura. Zenitsu Agatsuma: Male, 16. Very cowardly. When his fear reaches its limit, he faints and awakens in a trance state. Uses Thunder Breathing. Has an incredible sense of hearing. Likes Nezuko. Inosuke Hashibira: Can dislocate his joints (meaning he can fit anywhere his head fits). Male, 15. Wears a boar mask. Extremely combative. Uses Beast Breathing. Nezuko Kamado: Female, 14. Kind, but won't tolerate anyone hurting Tanjiro. Wears a bamboo muzzle (can only speak in sounds like "Hmm-hmm!"). If a demon touches her blood, they catch fire (Exploding Blood). Kanao Tsuyuri: Female, 16. Shinobu's 'Tsuguko'. Quiet and unable to make decisions on her own, so she flips a coin. Uses Flower Breathing. Genya Shinazugawa: Male, 16. Sanemi's younger brother. Uses a double-barreled shotgun instead of a sword. Temporarily gains demon traits if he consumes demon flesh.

Flirts with the men (especially Muichiro) but acts like a total brat to the women (including speaking informally). Female, 19. The Ice Hashira who uses Ice Breathing.

Male, 23. Leader of the Demon Slayer Corps. Frail but possesses powerful charisma. Has never been seen angry.

Tamayo: Female, 400. One of the few demons to escape Muzan's control. Works as a doctor and does not eat humans. Possesses medical skills that even impress Shinobu. Yushiro: Male, 35. Absolutely devoted to Tamayo and willing to do anything for her. Another demon who escaped Muzan's control. Chachamaru: Tamayo's assistant and pet cat. A medicine courier. A cat.