Takehito Koyasu is a Japanese voice actor. Koyasu is part of the voice actor quartet Weiß consisting of Weiß Kreuz voice castmates Shinichiro Miki, Tomokazu Seki, and Hiro Yūki. He used to work for Production Baobab but is now the head of T's Factory, a voice actor company he founded in 1998. Koyasu is known for his deep, smooth voice, which often lands him in roles that are either villains or lonely bishōnen. Recently, though (as in the cases of Mitsurugi Hanagata from Saber Marionette J, Ryo Kuroyanagi from Yakitate!! Japan, Bobobo-bo Bo-bobo, and Kei Itoshiki from (Zoku) Sayonara, Zetsubou-Sensei) he has been voicing more and more lively/humorous characters. According to Hisaya Nakajo, the manga artist of the series Hana-Kimi, the character of Masao Himejima was designed with Koyasu's voice in mind; the voice actor ended up voicing this character in the series' drama CDs. On 18 September 2009, he created Velvet Underworld series which is the first drama CD of the series, "The Fool". In the following month, "The Wheel of Fortune" had released as the second drama CD of the series.

Takehito Koyasu plays as Dio Brando (voice), DIO (voice) in Baki.
Takehito Koyasu is the top #1 member of the cast and appears in 74 episodes.

Chafurin plays as Bookrates (voice) in Baki.
Chafurin is the top #2 member of the cast and appears in 50 episodes.

Rikiya Koyama is a Japanese actor and voice actor who is a member of Haiyuza Theatre Company. He has done popular voicing roles in Hajime no Ippo, Utawarerumono and Kamen no Maid Guy. He is also known by the nicknames "Rikki" and "Riki-chan". Koyama become well known for voicing Yamato from Naruto, Kogoro Mouri from Case Closed and Coyote Starrk from Bleach.

Rikiya Koyama plays as Wang Qi in Baki.
Rikiya Koyama is the top #3 member of the cast and appears in 38 episodes.

Sora Amamiya is a Japanese voice actress and singer from Toyko, affiliated with Music Ray'n. After passing an audition held by Music Ray'n, she made her voice acting debut in 2012. She played her first main role as Kaori Fujimiya in the 2014 anime series One Week Friends.

Sora Amamiya plays as Chizuru Mizuhara (voice) in Baki.
Sora Amamiya is the top #4 member of the cast and appears in 36 episodes.

Issei Futamata (二又 一成) is a Japanese voice actor.

Issei Futamata plays as Yanagi Ryūkō in Baki.
Issei Futamata is the top #5 member of the cast and appears in 26 episodes.

Kenjiro Tsuda (津田 健次郎, Tsuda Kenjirō) is a Japanese voice actor, stage actor, and narrator affiliated with Amuleto and Stardust Promotion.

Kenjiro Tsuda plays as Takuya Gotou (voice) in Baki.
Kenjiro Tsuda is the top #6 member of the cast and appears in 26 episodes.

Yoshihisa Kawahara (川原 慶久, Kawahara Yoshihisa, June 22, 1976) is a Japanese voice actor and narrator born in Tokyo. He is affiliated with Across Entertainment. Previously was a member of Kekke Corporation and Atomic Monkey. On December 13, 2017, Kawahara announced that he had married voice actress Kaori Sadohara (佐土原 かおり).

Yoshihisa Kawahara plays as Orochi Katsumi in Baki.
Yoshihisa Kawahara is the top #7 member of the cast and appears in 26 episodes.

Mugihito plays as Tokugawa Mitsunari in Baki.
Mugihito is the top #8 member of the cast and appears in 26 episodes.

Takuya Eguchi is a Japanese voice actor and singer from Setagaya, Tokyo. He is affiliated with 81 Produce. He has voiced in a number of lead roles in anime shows including Kazuya Kujo in Gosick, Yoshiharu Sagara in The Ambition of Oda Nobuna, Kon Hokaze in Ixion Saga DT, Hachiman Hikigaya in My Youth Romantic Comedy Is Wrong, As I Expected, William Twining in Devils and Realist, Takeo Gōda in My Love Story. He won Best New Actor award at the 6th Seiyu Awards, and Best Voice Actor in the Newtype Anime Awards 2015. In 2017, Eguchi launched a manga about his life called Eguchi Takuya no Gainen Planet, to be published on Kadokawa's Dengeki Girl's Style Online website.

Takuya Eguchi plays as Shuji Hanma (voice) in Baki.
Takuya Eguchi is the top #9 member of the cast and appears in 24 episodes.

Bin Shimada, born November 20, 1954 in, Niigata, Japan is a Japanese voice actor. He is affiliated with the talent management firm Aoni Production.

Bin Shimada plays as Myr in Baki.
Bin Shimada is the top #10 member of the cast and appears in 21 episodes.