as Tsurugi (voice)
as Master (voice)(1 ep)
as School principal(1 ep)
as Matsuda Shigeru
as Chuang Hang (voice)
as Kazuo Kuroiwa(5 eps)
as Son Mundok / Son Mun-Deok (voice)(5 eps)
as Eihara Shozo(2 eps)
as Toshikazu Nagatsuka(1 ep)
as Takenaka (voice)(2 eps)
as Hennich (voice)(6 eps)
as Oshima(2 eps)
as Toshiyuki Hasebe(11 eps)
as Professor Mazaki
as Soldier with Glasses
as Masaki Daidoji(1 ep)
as Masayuki Takebayashi
as Agematsu
as Hitoshi Kusakabe
as Biologist Akira Ichinose
as Yoshihama, Nishiyama's Assistant
as Professor Yoshi
as Yamada
as Inventor Goro Ibuki
as Yoshinaga
as Tarō Uesugi, Yoyo Employee
as Michio Yoshikawa
as Communications Officer Miyake
as Tarō Uesugi
as Hayakawa Shingo(1 ep)