Insomniacs After School

Gen Sato

Ganta Nakami (voice)

Konomi Tamura

Isaki Magari (voice)

Juri Nagatsuma

Female Student (voice)

Takako Tanaka

Female Student (voice)

Emiri Suyama

Female Student (voice)

Rin Kusumi

Female Student (voice)

Tomoyo Takayanagi

Female Student (voice)

Minami Iinuma

Female Student (voice)

Nao Ojika

Female Student (voice)

Daisuke Nakamura

Radio Voice (voice)

Yuu Kawada

Announcement (voice), Police Officer (voice), Male Student (voice)

Takuya Tsuda

Man (voice), Male Student (voice)

Arisa Nakada

Female Student (voice)

Mika Kanda

Home Economics Teacher (voice)

Shinya Takahashi

Teacher (voice)

Mayuko Kazama

Female Student (voice)

Yoko Soumi

Softball Club Advisor (voice)

Riho Sugiyama

Female Student (voice)

Yuki Ito

Male Student (voice)

Yuki Terui

Male Student (voice)

Go Imakiire

Man (voice)

Hayato Kashiwazaki

Man (voice)

Shou Okumura

Radio Voice (voice), Teacher (voice)

Tomoya Ito

Man (voice)

Atsushi Tamaru

Senpai (voice)

Kouichi Souma

Principal (voice)

Haruka Tomatsu

Yui Shiromaru (voice)

Hana Hishikawa

Rui's Girlfriend (voice), Female Student (voice)

Seiichiro Yamashita

Tao Ukegawa (voice)

Lynn

Motoko Kanikawa (voice)

Natsumi Fujiwara

Kanami Anamizu (voice)

Yohei Matsuoka

Male Student (voice), Student Council President (voice)

Sumire Morohoshi

Mina Nono (voice)

Mamiko Noto

Usako Kurashiki (voice)

Sho Karino

Rui Haida (voice)

Haruna Terada

Female Student (voice), Young Woman (voice), Teacher (voice)

Sora Amamiya

Haya Magari (voice)

Ikuto Kanemasa

Ken Hakui (voice)

Hidenobu Kiuchi

Ganta's Father (voice)

Megumi Toyoguchi

Isaki's Mother (voice)

Yuri Hinami

Female Student (voice), Woman (voice)

Sayaka Ohara

Ganta's Mother (voice)

Chiwa Saito

Motoko's Mother (voice)

Saeko Akiho

Vice Principal (voice)

Aya Suzaki

Young Ganta Nakami (voice), Newscaster (voice)

Kumiko Nakane

Teacher (voice)

Tomomi Tanaka

Audience Member (voice)

Konomi Inagaki

Softball Club Member (voice), Woman (voice), Child (voice), Female Student (voice)

Mitsuki Nakae

Mother (voice)

Mirii Saito

Child (voice)