Shin'ichi Yuki as Ippei Akaki / Denzi Red

Kenji Ohba as Daigorou Oume / Denzi Blue

Eiichi Tsuyama as Jun Kiyama / Denzi Yellow

Naoya Uchida as Tatsuya Midorikawa / Denzi Green

Akira Koizumi as Akira Momoi / Denzi Pink

Shozo Iizuka as Angolar (voice)

Hisako Kyoda as Denji Dog IC (voice)

Tamaki Funakura as Princess Denji

Machiko Soga as Queen Hedrian

Shinji Tôdô as General Hedrer

Rie Yoshikawa as Mirror

Kojou Chiaki as Keller

Tōru Ōhira as Narrator (voice)

Takeshi Watabe as Denzi Computer

Yukiko Yoshino as Keiko

Yukiko Yoshino as Claire, Keiko Sugimoto

Mie Kataoka as Harumi Sugimoto

Hiromichi Suzuki as Man

Hiroki Echigo as Boy

Toshirō Takashima as Woman

Michiko Sano as Maiden

Naoko Tanaka as Maiden