
Quick answer — Katsutoshi Matsuzaki voices Yamada Masakazu in Flowers of Evil, Tokuo Katayama in Uzumaki.
Katsutoshi Matsuzaki voices Yamada Masakazu (Flowers of Evil), Tokuo Katayama (Uzumaki).
Yamada Masakazu is voiced in Japanese by Katsutoshi Matsuzaki.