
Quick answer — Ryuusaku Chijiwa voices Shougen Kazamachi in Basilisk, Kashitarou Itou in Hakuoki ~Demon of the Fleeting Blossom~, Ryuuta Yotsugi in Tokyo Majin and 1 more characters.
Ryuusaku Chijiwa voices Shougen Kazamachi (Basilisk), Kashitarou Itou (Hakuoki ~Demon of the Fleeting Blossom~), Ryuuta Yotsugi (Tokyo Majin), Aniki (Okamikakushi ~ Masque of the Wolf).
Shougen Kazamachi is voiced in Japanese by Ryuusaku Chijiwa.