Fujiwara Tatsuya
Shimada Ryuhei
Main Role

Maki Yoko
Asamura Ryoko [Class 3-1 homeroom teacher]/[Japanese language teacher]
Support Role
Yamada Yuki
Saegusa Hiroki [Officer of Sumihama police station's Juvenile division]
Support Role
Takahashi Katsumi
Kijima Toshifumi [The principal]
Support Role
Izumisawa Yuuki
Shibata Toru [Social studies teacher]
Support Role
Yamaguchi Sayaka
Mizuno Kaede [Class 3-2 homeroom teacher]/[English teacher]
Support Role
Otoo Takuma
Abe Hiroaki [P.E teacher]/[Baseball club coach]
Support Role
Ishii Masanori
Ichinose Satoru [Math teacher]/[Badminton club advisor]
Support Role
Suga Kenta
Niitsu Kiyoshi
Support Role
Minemura Rie
Fukushima Mitsuko [The vice-principal]
Support Role
Kodama Norikatsu
Koga Issei [Social studies teacher/Soccer club coach]
Support Role
Takuma Seiko
Arai Eiko [Teacher]
Support Role
Kanazawa Masami
Mita Keiko [School Nurse]
Support Role
Nakagawa Tsubasa
Sanada Kazuki
Support Role
Kiryu Sakura
Mimura Shoko / "Blue Knight"
Support Role
Ikeda Yuto
Nishida Yuichi [Class 3-1 student]
Support Role
Suzuki Rio
Ozaki Kasumi [Class 3-1 student & president]
Support Role
Miyase Ryubi
Yuma Sasaki
Support Role
Tadafuji Ema
Inoue Futaba [Class 3-1 student]
Support Role
Ishii Kaoruko
Sagara Kyoko [Class 3-1 student]
Support Role
Oku Tomoya
Ichihara Kenta [Class 3-1 student]
Support Role
Suzuki Yujin
Kikuchi Kyosuke [Class 3-1 student]
Support Role
Tabata Shima
Narita Chika [Class 3-1 student]
Support Role
Tanaka Kanau
Miyama Toshiharu [Class 3-1 student]
Support Role
Ishioka Asuka
Teraoka Sota [Class 3-1 student]
Support Role
Onose Yuta
Takemura Hayato [Class 3-1 student]
Support Role
Obata Nino
Mori Nagisa [Class 3-1 student]
Support Role
Kakehi Kana
Fujikawa Misaki [Class 3-1 student]
Support Role
Shinomiya Konomi
Yamagishi Maki [Class 3-1 student]
Support Role
Nagashima Reiku
Yajima Yu [Class 3-1 student]
Support Role
Makino Usa
Matsumoto Yuzuha [Class 3-1 student]
Support Role
Mizuno Satoshi
Mukai Dai [Class 3-1 student]
Support Role
Miyahara Kanau
Nakano Natsumi [Class 3-1 student]
Support Role
Miyamoto Ryunosuke
Kusuda Daichi [Class 3-1 student]
Support Role
Yamamoto Kokoro
Watanabe Nami [Class 3-1 student]
Support Role
Yonekura Reia
Wakui Mizuki [Class 3-1 student]
Support Role
Waki Maya
Sasamoto Elene [Class 3-1 student]
Support Role
Araki Towa
Obayashi Yuya [Class 3-2 student]
Support Role
Kimura Seiya
Mikami Shinji [Class 3-2 student]
Support Role
Toyoshima Hana
Nagata Ayaka [Class 3-2 student]
Support Role
Arakawa Hinata
Osawa Riko [Class 3-2 student]
Support Role
Yamashita Yue
Hirano Takumi [Class 3-2 student]
Support Role
Tanigawa Shoichiro
Muta ["King no Aji" owner]
Support Role
Asumi Rio
Ogawa Kaori [Former music teacher]/[Shimada's ex-girlfriend]
Support Role
Mitsumoto Ayaka
Iguchi Momoka [Class 3-2 student]
Support Role
Natsume Kotaro
Numajiri Yuta
Support Role
Mitani Rintaro
Tsuchiya Riki
Support Role
Shudo Yuha
Arima Saori
Support Role
Marumoto Rin
Shirooka Sakura
Support Role

Nagasawa Itsuki
Narahashi Eri [Student] (Ep.1-4,6,10)
Guest Role
Masu Takeshi
Ozaki Kenji [Superintendent of Tokyo metropolitan board of education] (Ep. 1,5,8-10)
Guest Role
Shibuya Kento
Aoiki Yuji [Science teacher] (Ep.1-2)
Guest Role
Chisun
Sawada Atsuko [Science teacher]/[Men's volleyball coach] (Ep.1-4)
Guest Role
Imazato Makoto
Kurogane Tetsuo [Blue knight's victim] (Ep,1)
Guest Role
Morisaki Mizuki
Iwai Maho [Shoko's best friend] (Ep.1)
Guest Role
Haruki Misayo
Sanada Izumi [Kazuki's mother] (Ep. 1)
Guest Role
Nakano Tsuyoshi
[Sumihama Station's police officer] (Ep. 1)
Guest Role
Motoki Waku
Shingo [Keijo Junior High School student] (Ep. 1)
Guest Role
Uchimura Sota
Eiji [Keijo Junior High School student] (Ep. 1)
Guest Role
Fukada Ryusei
Yuki [Keijo Junior High School student] (Ep. 1)
Guest Role
Kuno Makiko
[Yuya's Mother] (Ep. 2)
Guest Role
Tanaka Anna
[Akamine Junior High School student] (Ep. 2)
Guest Role
Irei Himena
[Akamine Junior High School student] (Ep. 2)
Guest Role
Fujimoto Kanata
Nakamura Noriaki [Class 3-3 student] (Ep. 3)
Guest Role
Osako Ippei
Takayama ["Takayama Sports" store manager] (Ep. 3)
Guest Role
Fujishima Kanon
Imai Rio [Manager of track and field club] (Ep.4)
Guest Role
Naito Kosuke
[Rio's older brother] (Ep. 4)
Guest Role
Endo Yuya
Okabe Masahiro [Former art teacher] (Ep.4-6,9-10)
Guest Role
Shirakawa Kazuko
Miyama Saki [Toshiharu's grandmother] (Ep. 7)
Guest Role
Nakajima Arisa
Miyama Erika [Toshiharu's mother] (Ep. 7)
Guest Role
Korechika Atsushi
Ishibashi ["Night in Butterfly" club manager] (Ep. 7)
Guest Role
Tamaki Takamasa
Kinoshita [Convenience store clerk] (Ep. 7)
Guest Role
Kizu Toru
Ando [Executive of Yakuza's front company] (Ep. 7)
Guest Role
Kobayashi Takashi
Mogi [Former principal of Tsujinomiya Junior High School] (Ep. 7)
Guest Role
Santoki Soma
Sakaki Tsukasa [Class 3-3 student]/[Baseball club member] (Ep.8)
Guest Role
Iwahashi Michiko
Sakaki Itsuki [Tsukasa's mother] (Ep. 8)
Guest Role
Yamazaki Gakudai
Nimura [Man who has a criminal record] (Ep. 8)
Guest Role
Mizusawa Rintaro
Matsuda Kota [Akamine Junior High School baseball club OB] (Ep. 8)
Guest Role
Sakuragi Nachi
Kuroishi Masaka [Akamine Junior High School baseball club OB] (Ep. 8)
Guest Role
Nakajima Hiroko
Wakui Hideaki [Mizuki's mother] (Ep. 9-10)
Guest Role
Nishio Mari
Inoue Yayoi [Futaba's mother] (Ep. 9)
Guest Role
Horiuchi Keiko
Sagara Ritsuko [Kyoko's mother] (Ep. 9)
Guest Role
Miyamoto Taisei
Wakui Tatsuo [Mizuki's father] (Ep. 9)
Guest Role
Doi Reina
Miki [Masahiro's fiancée] (Ep. 9)
Guest Role
Mizuno Tomonori
Konno Eisaku [Head of the "Eiwa Art Academy"] (Ep. 9)
Guest Role
Kurauchi Hideki
[Old man] (Ep.10)
Guest Role
Okajima Ryotaro
Aragaki Takeshi (Ep.3)
Guest Role
Ito Jun
[Police officer who entered the teachers' office] (Ep. 10)
Guest Role
Shimizu Kokone
Wakui Megumi (Ep. 9)
Guest Role
Seguchi Yoshino
(Ep. 3)
Guest Role
Aoi Shun
(Ep. 6)
Guest Role