Jouji Nakata is a Japanese actor, voice actor, and narrator who is affiliated with the Office Osawa agency. His major voice roles include Giroro in Sgt. Frog, Alucard in Hellsing, Roy Revant in Solty Rei, Kirei Kotomine in Fate/stay night, and the title character in Gankutsuou: The Count of Monte Cristo. In video game franchises, he voices Ieyasu Tokugawa and Kenshin Uesugi in Samurai Warriors, Albert Wesker in the Resident Evil franchise, and Kazuya Mishima in the first, second and fourth installments of the Tekken series.

Jouji Nakata plays as Tankjou (voice), Great Professor Bias, Azauld (voice), Bokkowausu (voice) in Log Horizon.
Jouji Nakata is the top #1 member of the cast and appears in 194 episodes.

is a Japanese voice actress from Saitama Prefecture, Japan. Born on October 10. She was originally represented by the Early Wing agency, but is now currently affiliated with Haikyō. The debut work is the role of Mosman in the game " Disgaea 4 ", and the first regular work is the role of Ayako Uehara in the TV anime " Aura " .

Nao Tamura plays as Chika Amatori (voice) in Log Horizon.
Nao Tamura is the top #2 member of the cast and appears in 99 episodes.

a Japanese voice actress and singer. She is affiliated with IAM Agency.

Eriko Matsui plays as Isuzu in Log Horizon.
Eriko Matsui is the top #3 member of the cast and appears in 54 episodes.

Daiki Yamashita (山下 大輝, Yamashita Daiki, born September 7, 1989) is a Japanese voice actor from Shizuoka Prefecture, Japan. He is affiliated with Arts Vision. He won the Best Male Newcomer award at the 8th Seiyu Awards in 2014.

Daiki Yamashita plays as Narancia Ghirga (voice) in Log Horizon.
Daiki Yamashita is the top #4 member of the cast and appears in 39 episodes.

Emiri Kato a Japanese voice actress and singer affiliated with 81 Produce.

Emiri Kato plays as Riko Saikawa (voice) in Log Horizon.
Emiri Kato is the top #5 member of the cast and appears in 22 episodes.

Takuma Terashima (寺島 拓篤, Terashima Takuma) is a Japanese voice actor and singer born in Ishikawa, Japan. Terashima graduated from Tokyo Announce Gakuin, voice training school. He had initially belonged to Holypeak until December 2008, and then to Production Baobab up until September 2011 when he switched to Axlone, Toshiyuki Morikawa's own agency. He is married to voice actress Satomi Satō. Ishikawa Yuusuke is an alias Terashima Takuma has used when working on adult games/anime.

Takuma Terashima plays as Von Tepes in Log Horizon.
Takuma Terashima is the top #6 member of the cast and appears in 21 episodes.

Tomoaki Maeno is a Japanese voice actor affiliated with Arts Vision.

Tomoaki Maeno plays as Tsukuyomi-no-Mikoto (voice) in Log Horizon.
Tomoaki Maeno is the top #7 member of the cast and appears in 12 episodes.