Quick answer — Masahiro Yamanaka voices Souichi Jounouchi in Kimi ni Todoke: From Me to You, Takahiro Saitou in Grandpa and Grandma Turn Young Again, Ju-Gok Jeon in The God of High School and 2 more characters.
Masahiro Yamanaka voices Souichi Jounouchi (Kimi ni Todoke: From Me to You), Takahiro Saitou (Grandpa and Grandma Turn Young Again), Ju-Gok Jeon (The God of High School), Gonze (Banished from the Hero’s Party, I Decided to Live a Quiet Life in the Countryside), Wales Tudor (The Familiar of Zero).
Souichi Jounouchi is voiced in Japanese by Masahiro Yamanaka.
