
Quick answer — Masashi Yamane voices Minotaur in Sleepy Princess in the Demon Castle, Veteran Enshutsu in ZENSHU, Raj in Black Summoner and 2 more characters.
Masashi Yamane voices Minotaur (Sleepy Princess in the Demon Castle), Veteran Enshutsu (ZENSHU), Raj (Black Summoner), Klimt Christoph von Armstrong (The 8th Son? Are You Kidding Me?), Jean no Nakama (Bogus Skill <<Fruitmaster>> ~About that time I became able to eat unlimited numbers of Skill Fruits (that kill you)~).
Minotaur is voiced in Japanese by Masashi Yamane.