He also played Gavroche in the original Japanese cast and later Marius in the Japanese TOHO production of Les Misérables and appears on the 2003 "green" cast recording.

This sequel portrays the last day of Hijikata Toshizō, Vice Commander of Shinsengumi and he reprised the role in Asa ga Kita eleven years later.

In 2022 he also played Alien Mefilas in Shinji Higuchi's critically acclaimed tokusatsu superhero film Shin Ultraman.

Yamamoto married actress Maki Horikita on 22 August 2015,[2] and their first child was born in December 2016.

[3] The couple became close in May 2015 when playing the role of lovers in the theatrical production Arashi ga Oka (Wuthering Heights) and had commenced dating in June.