- Jason Spisak
- Â Kenji 13 episodes, 1999-2000
- Steve Blum
- Â Keisuke 13 episodes, 1999-2000
- Cherami Leigh
- Â Kazumi Akiyama 13 episodes, 1999-2000
- Christopher Sabat
- Â Kyouichi Sudou 13 episodes, 1999-2000
- Vic Mignogna
- Â Shingo Shoji 13 episodes, 1999-2000
- Todd Haberkorn
- Â Keisuke Takahashi 13 episodes, 1999-2000
- Colleen O'Shaughnessey
- Â Kazumi Akiyama 13 episodes, 1999-2000
- Brina Palencia
- Â Natsuki Mogi 13 episodes, 1999-2000
- Crispin Freeman
- Â Iketani 13 episodes, 1999-2000
- J. Michael Tatum
- Â Ryosuke Takahashi 13 episodes, 1999-2000
- Robbie Rist
- Â Itsuki 'Iggy' Takeuchi 13 episodes, 1999-2000
- Eric Vale
- Â Koichiro Iketani 13 episodes, 1999-2000
- Jessie James Grelle
- Â Itsuki Takeuchi 13 episodes, 1999-2000
- Kirk Thornton
- Â Masashi 13 episodes, 1999-2000
- Quinton Flynn
- Â Shingo Shouji 13 episodes, 1999-2000
- Chuck Huber
- Â Yuichi Tachibana 13 episodes, 1999-2000
- Sonny Strait
- Â Additional Voices 13 episodes, 1999-2000
- Lex Lang
- Â Ryosuke 'Ry' Takehashi 13 episodes, 1999-2000
- Greg Ayres
- Â Kenta Nakamura 13 episodes, 1999-2000
- Mike McFarland
- Â Matsumoto 13 episodes, 1999-2000
- Michael McConnohie
- Â Yuichi 'Boss' Tachibana 13 episodes, 1999-2000
- Kat Cressida
- Â Natsuki 'Natalie' Mogi 13 episodes, 1999-2000
- Micah Solusod
- Â Additional Voices 13 episodes, 1999-2000
- Barry Yandell
- Â Narrator 13 episodes, 1999-2000
- Chris Ayres
- Â Additional Voices 13 episodes, 1999-2000
- Grant George
- Â Seiji Iwaki 13 episodes, 1999-2000
- Dave Wittenberg
- Â Takumi 13 episodes, 1999-2000
- Phil Parsons
- Â Additional Voices 13 episodes, 1999-2000
- Joel McDonald
- Â Takumi 13 episodes, 1999-2000
- Michael Lindsay
- Â Wataru Akiyama 13 episodes, 1999-2000
- Ben Phillips
- Â Additional Voices 13 episodes, 1999-2000
- Christopher Bevins
- Â Kenji 13 episodes, 1999-2000
- Anthony Bowling
- Â Additional Voices 13 episodes, 1999-2000
- Kerrigan Mahan
- Â Bunta Fujiwara 13 episodes, 1999-2000
- Richard Cansino
- Â Kyouichi Sudoh 13 episodes, 1999-2000
- Orion Pitts
- Â Additional Voices 13 episodes, 1999-2000
- David Rasner
- Â Kenta Nakamura 13 episodes, 1999-2000
- Corey Cleary-Stoner
- Â Additional Voices 13 episodes, 1999-2000
- Takehito Koyasu
- Â Ryosuke Takahashi 9 episodes, 1999-2000
- Tyler Walker
- Â Additional Voices 3 episodes, 2000
- Z. Charles Bolton
- Â Additional Voices 3 episodes, 2000
- Shin'ichirô Miki
- Â Takumi Fujiwara unknown episodes
- Unshô Ishizuka
- Â Bunta Fujiwara unknown episodes
- Mitsuo Iwata
- Â Itsuki Takeuchi unknown episodes
- Ayako Kawasumi
- Â Natsuki Mogi unknown episodes
- Kazuki Yao
- Â Koichiro Iketani unknown episodes
- Wataru Takagi
- Â Kenji unknown episodes
- Tomomichi Nishimura
- Â Yuichi Tachibana unknown episodes
- Kôji Ishii
- Â Masaji Suzuki unknown episodes
- Kôsuke Okano
- Â Kenta Nakamura unknown episodes
- Tomokazu Seki
- Â Keisuke Takahashi unknown episodes
- Nobuyuki Hiyama
- Â Takeshi Nakazato unknown episodes
- Keiji Fujiwara
- Â Shingo Shoji unknown episodes
- Masahiko Tanaka
- Â Kyoichi Sudo unknown episodes
- Kazuhisa Kawahara
- Â Seiji Iwaki unknown episodes
- Yasunori Matsumoto
- Â Wataru Akiyama unknown episodes
- Ryôka Yuzuki
- Â Kazumi Akiyama unknown episodes
- Hidenari Ugaki
- Â Papa unknown episodes
- Osamu Hosoi
- Â Announcer / ... unknown episodes
