Seiji Rokkaku

Seiji Rokkaku (六角 精児) is a Japanese actor from Hyōgo Prefecture. He was born in Himeji and raised in Takasago. Rokkaku is the vocalist of Rokkaku Seiji Band. He dropped out of Gakushuin University.

Rokkaku became famous in Japan for his role as Mamoru Yonezawa in Aibou Series. He landed the lead role in AIBOU Series: Yonezawa Mamoru no Jikenbo spin-off film of AIBOU series.

Film

 * One Missed Call (2003)
 * Hinokio (2005)
 * Tokyo Tower: Mom and Me, and Sometimes Dad (2007) as Editor-in-chief
 * AIBOU: The Movie (2008) as Mamoru Yonezawa
 * AIBOU Series: Yonezawa Mamoru no Jikenbo (2009) as Mamoru Yonezawa
 * AIBOU: The Movie II (2010) as Mamoru Yonezawa
 * 13 Assassins (2010) as Otake Mosuke
 * Leonie (2010) as Postman
 * Gekkō no Kamen (2012) as Morinoya Kinta
 * Samurai Hustle (2014) as Imamura Seizaemon
 * Partners: The Movie III (2014) as Mamoru Yonezawa
 * Samurai Hustle Returns (2016) as Imamura Seizaemon
 * Gintama (2017) as Char Aznable
 * Under the Open Sky (2021) as Ryōsuke Matsumoto
 * The Fable (2019) as Bar master
 * Wedding High (2022) as Daizō Nitta
 * What to Do with the Dead Kaiju? (2022) as the Chief Cabinet Secretary
 * Anime Supremacy! (2022) as Seki
 * Convenience Story (2022), Nagumo
 * Baian the Assassin, M.D. (2023) as Tamekichi
 * Oi Handsome!! (2024) as Takao's father

Television

 * Carnation (2012) as Megumi Matsuda
 * AIBOU: Tokyo Detective Duo (2000–2017) as Mamoru Yonezawa
 * Mare (2015) as Anzai Hayato
 * Naotora: The Lady Warlord (2017) as Honda Masanobu
 * Half Blue Sky (2018) as Mitsuru Saionj
 * Ochoyan (2020) as Katagane Heihachi
 * 24 Japan (2020) as Banba Eiiji
 * DCU: Deep Crime Unit (2022) as Hideki Tsukishima (ep. 4)
 * Lost Man Found (2022) as Arita
 * Gannibal (2022), Kiyoshi Gotō
 * Elpis (2022)

Culture program

 * Rokkaku Seiji no Nomitetsu Honsen Nihontabi (2015–present)

Theatre

 * Les Miserables (2021, 2024-2025) as Thenardier