This is a list of all the Seiyu in the Japanese Version of .hack//Roots.
Akiko Hiramatsu: Bordeaux
Akiko Yajima: Gaspard
Akio Suyama: Itta
Atsuko Enomoto: B-Set, Nazoranty
Ayako Kawasumi: Wool
Daisuke Namikawa: Iyoten
Daisuke Sakaguchi: Silabus
Hiroki Touchi: Ovan
Hiroshi Yanaka: Gord
Hisayoshi Suganuma: Hideyo
Isshin Chiba: Nasubi
Jun'ichi Kanemaru: Ochi
Junpei Takiguchi: Phyllo
Kaori Nazuka: Shino
Kazuhiro Nakata: Taihaku
Kenta Miyake: Tawaraya, Touta
Megumi Toyoguchi: Tabby
Mika Shirai: Control System
Mitsuki Saiga: Yuuta, Kashimiya
Ryotaro Okiayu: Sakisaka
Ryotaro Okiayu: Seisaku
Ryuuzou Ishino: Smile
Sanae Kobayashi: Ender, Pi
Satsuki Yukino: Midori
Shinichiro Miki: Kuhn
Shizuka Itou: Saburo
Takahiro Sakurai: Haseo
Takumi Yamazaki: Naobi, Yata
Youko Honna: Asuta
Yuki Matsuda: Pirokio