This page contains additional characters which appear for a short period within the series.
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Confident Corps Member
A member of the Demon Slayer Corps who was part of the unit sent to Natagumo Mountain. He approached Rui as he confronted Tanjiro Kamado, telling the latter to stay back and exclaiming that he could easily slay a kid Demon like Rui so his rank and thus his pay would go up. Rui swiftly kills him with his steel webs.
A civilian recruited by Enmu to be the conductor of his infinity train. He checks the tickets of Tanjiro, Zenitsu, Inosuke and Kyojuro, and stands by as the Flame Hashira defeats the Demon on their train carriage. After reporting back to Enmu, he cries and begs the Demon to let him sleep too so he can see his dead wife and daughter, and Enmu obliges.
Civilians recruited by Enmu to enter the dreams and destroy the spiritual cores of the Demon Slayers aboard his infinity train. They tie themselves to Zenitsu, Inosuke and Kyojuro and each enter one Corps member's dreams. The girl who enters Kyojuro's dream fails to destroy his spiritual core due to him strangling her in reality, and the girl and boy who enter Inosuke's and Zenitsu's respective dreams fail to destroy their spiritual cores because the Demon Slayers chase them away inside their dreams. When Tanjiro returns to reality, the recruits attack him because he didn't allow them to dream, so he knocks them out.
One of the civilians recruited by Enmu to enter the dreams and destroy the spiritual cores of the Demon Slayers aboard his infinity train, who wants to dream because he suffers from tuberculosis. He ties himself to Tanjiro and enters his dream with the intention of killing him, but is touched by the beauty and kindness of Tanjiro's unconscious realm. When Tanjiro wakes up and the young man is pulled from his dream, he holds onto a manifestation of Tanjiro's kindness and takes it into his own heart. He doesn't join the other recruits in attacking Tanjiro, instead thanking him and telling him to be careful.
The biological parents of Rui; They were killed by him after he misinterpreted their intentions of killing him for becoming a Demon, when in reality they were trying to commit murder-suicide to atone for their son's sins.
The caretaker and biological parent of Hakuji. He was a kind-hearted man who suffered from a disease and raised Hakuji as a single parent. After hearing of his sons crimes, he committed suicide out of guilt.
The possible descendant of Tengen Uzui or his reincarnation; a good-looking, 20-year-old professional gymnast who won the gold medal in gymnastics during the recent Olympics. He is also noted to be somewhat of a punk, often flashing his middle finger and choking reporters.
Either the reincarnations of Sanemi Shinazugawa and Genya Shinazugawa or the descendants of Sanemi; they are police officers who nearly run over Sumihiko as he rushes to school. They soon give chase and go after him.
The reincarnation or possible descendant of Giyu Tomioka, and the reincarnations of Sabito and Makomo. The children can be seen discussing toy charms similar to the fox masks which were worn in their past lives. Giyu's reincarnation is named Giichi (義一,Giichi?).
High School Student
The possible descendant or reincarnation of Goto. He is a male student that attends the same school as Yoshiteru and can be seen admiring a painting of Tamayo.
Either the reincarnation of Kyojuro Rengoku or the descendant of Senjuro Rengoku. He attends the same high school as the Kamado and Agatsuma descendants. After catching up to his friend Sumihiko Kamado on his way to school, they run the rest of the way together, jumping the school gate and making it just on time. It is noted that he has a passion for kendo, often forgetting about everything else when he's training and participating in the kendo club at school.
Either the reincarnation or descendant of Murata. He is the principal of Toko, Yoshiteru, Sumihiko and Kanata's school and is seen trying to close the gate as Sumihiko and Tojuro rush to class.