Daisuke Ono is a Japanese voice actor and singer who won the 4th and 9th Seiyu Awards for best lead actor for his role as Sebastian Michaelis in Black Butler, Jotaro Kujo in JoJo's Bizarre Adventure and Shukuro Tsukishima in Bleach, as well as "Best Personalities" at the 9th Seiyu Awards. Other notable roles include Erwin Smith in Attack on Titan, Shizuo Heiwajima in Durarara!!, Jyushimatsu in Osomatsu-san, Shintarō Midorima in Kuroko's Basketball, Killer T Cell in Cells at Work! and Ushiromiya Battler in Umineko When They Cry and Nobuyuki Sanada in Samurai Warriors 4 and Warriors Orochi 4. He hosts radio show Dear Girl Stories along with voice actor Hiroshi Kamiya.

Daisuke Ono plays as Jotaro Kujo (voice) in JoJo's Bizarre Adventure.
Daisuke Ono is the top #1 member of the cast and appears in 117 episodes.

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 JoJo's Bizarre Adventure.
Takehito Koyasu is the top #2 member of the cast and appears in 74 episodes.

Keiji Fujiwara (藤原 啓治, Fujiwara Keiji, October 5, 1964 – April 12, 2020) was a Japanese voice actor. His best known works are voicing Shinnosuke's father Hiroshi Nohara in the long-running anime series Crayon Shin-chan, Maes Hughes in Fullmetal Alchemist, Holland in Eureka Seven, Axel in Kingdom Hearts, Shiro Fujimoto in Ao no Exorcist and Esidisi in JoJo's Bizarre Adventure: Battle Tendency. In the live action field, he is mostly known for dubbing actor Robert Downey Jr. He founded his own talent management and production company, Air Agency, in 2006.

Keiji Fujiwara plays as Chida Nick (voice) in JoJo's Bizarre Adventure.
Keiji Fujiwara is the top #3 member of the cast and appears in 50 episodes.

Takuya Sato (佐藤 拓也, Satō Takuya, May 19, 1984) is a Japanese voice actor and singer from Yamamoto Town, Watari District, Miyagi Prefecture. He is affiliated with Ken Production. Not to be confused with actor and voice actor affiliated with Production Ace Takuya Sato (里 卓哉).

Takuya Sato plays as Vroom (voice) in JoJo's Bizarre Adventure.
Takuya Sato is the top #4 member of the cast and appears in 49 episodes.

Kenta Miyake is a Japanese voice actor affiliated with 81 Produce.

Kenta Miyake plays as Muhammad Avdol (voice) in JoJo's Bizarre Adventure.
Kenta Miyake is the top #5 member of the cast and appears in 48 episodes.

Kazuhiko Inoue was born on March 26, 1954 in Yokohama, Japan. He is an actor, known for Naruto: Shippûden (2007), Naruto (2002) and Hyakujû-ô Goraion (1981). Murasakibana Kaoru is an alias Inoue Kazuhiko has used for adult games and anime.

Kazuhiko Inoue plays as Genis (voice) in JoJo's Bizarre Adventure.
Kazuhiko Inoue is the top #6 member of the cast and appears in 48 episodes.

Unsho Ishizuka, born as Yukinori Ishizuka, was a Japanese voice actor, narrator and actor affiliated with Aoni Production.

Unsho Ishizuka plays as Joseph Joestar (voice) in JoJo's Bizarre Adventure.
Unsho Ishizuka is the top #7 member of the cast and appears in 48 episodes.

Fuminori Komatsu (小松 史法, Komatsu Fuminori, July 23, 1978) is a Japanese voice actor from Tokyo. Currently freelance, formerly he was affiliated with Office PAC and Across Entertainment. His ex-wife is announcer and voice actress Michiko Komatsu (小松 美智子).

Fuminori Komatsu plays as Jean-Pierre Polnareff (voice) in JoJo's Bizarre Adventure.
Fuminori Komatsu is the top #8 member of the cast and appears in 48 episodes.

Yuki Kaji is a Japanese voice actor and singer affiliated with the agency VIMS. He has also been a radio host and acted on stage, and since 2015 has also occasionally been cast in on-screen roles in television dramas. He has voiced many notable roles such as Eren Yeager in Attack on Titan, Issei Hyodo in High School DxD, Shu Ouma in Guilty Crown, Alibaba in Magi: The Labyrinth of Magic, Kazuya Ichinose and Akio Fudou in Inazuma Eleven: Orion no Kokuin, Clemont in Pokémon XY, Meliodas and Zeldris in The Seven Deadly Sins, Yukine in Noragami, Speed-O'Sound Sonic in One-Punch Man, Kanato Sakamaki in Diabolik Lovers, Todoroki Shōto in My Hero Academia, Kozume Kenma in Haikyu!!, Koichi Hirose in JoJo's Bizarre Adventure.

Yuki Kaji plays as Koichi Hirose (voice) in JoJo's Bizarre Adventure.
Yuki Kaji is the top #9 member of the cast and appears in 39 episodes.

Yuki Ono plays as Josuke Higashikata (voice) in JoJo's Bizarre Adventure.
Yuki Ono is the top #10 member of the cast and appears in 39 episodes.