Kōichi Hashimoto (橋本 晃一, Hashimoto Kōichi, born Yōichi Mitsuhashi (三橋 洋一, Mitsuhashi Yōichi), January 12, 1953) is a Japanese actor, voice actor and narrator...

from the original on December 15, 2018. Retrieved September 25, 2018. 野木原, 晃一 (May 2, 2018). "映画「恋は雨上がりのように」出演! 清野菜名さんにインタビュー". Oricon News (in Japanese)...

Retrieved October 28, 2019. "橋本環奈、R15映画「シグナル100」主演！　教師に"自殺催眠"をかけられた生徒たちのデスゲーム". eiga.com. Retrieved August 7, 2019. "橋本環奈がR15+作品に初参加、宮月新原作の「シグナル100」2020年公開"...

Ryoichi Tsukada - 塚田僚一 (born December 10, 1986 - yellow) Koichi Goseki - 五関晃一 (born June 17, 1985 - blue) Fumito Kawai - 河合郁人 (born October 20, 1987 - violet)...