Koji Ochiai (落合 弘治, Ochiai Kōji, February 4, 1966) is a Japanese actor and voice actor (seiyū) from the Taito Ward, Tokyo. He has been affiliated with Theater Echo since 1991. Koji Ochiai (落合 弘治, Ochiai Kōji, February 4, 1966) is a Japanese actor and voice actor (seiyū) from the Taito Ward, Tokyo. He has been affiliated with Theater Echo since 1991.