Insomniacs after School

Unknown

Ganta Nakami (voice)

田村好

Isaki Magari (voice)

Haruka Tomatsu

Yui Shiromaru (voice)

山下誠一郎

Tao Ukegawa (voice)

Lynn

Motoko Kanikawa (voice)

藤原夏海

Kanami Anamizu (voice)

諸星すみれ

Mina Nono (voice)

Mamiko Noto

Usako Kurashiki (voice)

狩野翔

Rui Haida (voice)

雨宮天

Haya Magari (voice)

稲垣好

Child (voice) / Female student (voice) / Softball club member (voice) / Woman (voice)

Takuya Tsuda

Male student (voice) / Man (voice)

兼政郁人

Ken Hakui (voice)

洲崎綾

Broadcaster (voice) / Ganta Nakami (young) (voice)

川田祐

Announcement (voice) / Male student (voice) / Police officer (voice)

木内秀信

Ganta's father (voice)

寺田晴名

Female student (voice) / Sister (voice) / Teacher (voice)

松岡洋平

Male student (voice) / Student Council President (voice)

Bianca Ogura

Audience (voice) / Female student (voice) / Woman (voice)

奥村翔

Radio voice (voice) / Teacher (voice)

秋保佐永子

Vice Principal (voice)

Arisa Nakada

Female student (voice)

菱川花菜

Female student (voice) / Rui Haida's girlfriend (voice)

豊口めぐみ

Isaki's mother (voice)

長妻樹里

Female student (voice)

田中貴子

Female student (voice)

陶山恵実里

Female student (voice)

久住琳

Female student (voice)

高柳知葉

Female student (voice)

飯沼南実

Female student (voice)

小鹿なお

Female student (voice)

中村太亮

Radio voice (voice)

神田みか

Home Economics teacher (voice)

Shinya Takahashi

Teacher (voice)

風間万裕子

Female student (voice)

Chiwa Saitō

Motoko Kanikawa's mother (voice)

沢海陽子

Softball club advisor (voice)

杉山里穂

Female student (voice)

伊藤雄貴

Male student (voice)

照井悠希

Male student (voice)

Yuri Hinami

Woman (voice)

今給黎剛

Man (voice)

柏崎隼史

Man (voice)

井藤智哉

Man (voice)

Sayaka Ohara

Ganta's mother (voice)

田丸篤志

Senpai (voice)

相馬康一

Principal (voice)

中根久美子

Teacher (voice)

田中那実

Audience (voice)

中恵光城

Mother (voice)

齊藤未莉依

Child (voice)