OONUMA Hiroshi (おおぬまひろし)

Oorutaichi

OOSHIMA Man

OOSHIRO Shinri (大代しんり)

OOTA Akiyoshi

OOTANI Kazuo

OOTSUKI Toshimichi (大月 俊倫)

OOYAMA Nobuyo (大山のぶ代)

OOYAMA Takanori (大山鎬則)

OOYAMA Takumi (大山タクミ)

OOYOKOYAMA Ame (大横 山飴)

OPPATA Tadashi (乙幡忠志)

Opūnokyōdai (おぷうのきょうだい)

ORC SOFT

OREBALGUM

ORIE Mika

ORIGAMI Kyōya (織守きょうや)

ORIGUCHI Satoshi (バベルワードの言霊使い)

ORIGUCHI Yoshino (折口良乃)

ORIKASA Fumiko (折笠富美子)

ORIKASA Mami

ORIKATA Takashi

ORIKAWA Asagi (織川あさぎ)

ORIKUCHI Shinobu

ORIMICHI Kazuhiro