Kōichi Hashimoto (橋本 晃一) is a seiyuu who has been around ever since The '80s. His real name is Yōichi Mihashi (三橋 洋一), and he hails from the prefecture of Chiba.
Some roles by Koichi Hashimoto are:
- Saint Seiya: Cygnus Hyouga (replaced by Hiroaki Miura)
- Captain Tsubasa: Genzo Wakabayashi (replaced by Shin-ichiro Miki and later by Kenichi Suzumura)
- One Piece: Captain Kuro and Don Sai
- Silent Möbius: Robert Deviice
- Sailor Moon S: Kakuzui Yakushiji (the Bare-Fisted Monk that Makoto trained under once)
- Mobile Fighter G Gundam: Prime Minister Wong Yunfat (Playing Against Type, definitely)