Andrew Francis

Maxwell 'Max' McGrath (voice)

Hiromi Tsuru

Madoka Ayukawa

鶴ひろみ

Sam Vincent

Steel (voice)

Tōru Furuya

Kyosuke Kasuga

古谷徹

Michael Dobson

Commander Forge Ferrus (voice)

原えりこ

Hikaru Hiyama

Brian Dobson

Jason Naught (voice)

Chieko Honda

Kurumi Kasuga

本多知恵子

Kathleen Barr

Kat Ryan (voice)

富沢美智恵

Manami Kasuga

Brian Drummond

Bartholomew 'Butch' (voice)

富山敬

Takashi Kasuga

Omari Newton

Jefferson Smith (voice)

難波圭一

Seiji Komatsu

Mark Oliver

Miles Dredd (voice)

Lee Tockar

Prism Link (voice)

Naoki Tatsuta

Kazuya Hatta

龍田直樹

Nicole Oliver

Molly McGrath (voice)

Yasunori Matsumoto

Mitsuru Hayakawa

松本保典

Richard Ian Cox

Kirby Kowalski (voice)

Yūsaku Yara

Master

屋良有作

Kenichi Ogata

Kyosuke's Grandfather

緒方賢一

Masami Kikuchi

Yūsaku Hino

菊池正美

Sarah Edmondson

Sydney Gardner (voice)

Giles Panton

Ven-Ghan (voice)

中島千里

Ushiko

鈴木勝美

Umao

川島千代子

Hikaru's Mother

Kaneto Shiozawa

Matsuda sensei

塩沢兼人

鈴木れい子

Kyosuke's Grandmother

坂本千夏

Kazuya Kasuga

潘恵子

Koto (ep 18)

山田栄子

Yukari