| Episode credited cast: |
 | Daisuke Shima | - | Yuusuke Amamiya / Red Falcon |
| Kazuhiko Nishimura | - | Jou Oohara / Yellow Lion |
| Megumi Mori | - | Megumi Misaki / Blue Dolphin |
| Masaaki Yamaguchi | - | Tetsuya Yano / Black Bison |
| Shinobu Kômoto | - | Jun'ichi Aikawa / Green Rhino |
| Makoto Kousaka | - | Colon (voice) |
| Akiko Kurisu | - | Rui Senda / Doctor Mazenda |
 | Jôji Nakata | - | Great Professor Bias |
| Yutaka Hirose | - | Kenji Tsukikata / Doctor Kempu (as Takumi Hirose) |
| Yoshinori Okamoto | - | Arashi Busujima / Doctor Ashura |
| Hideaki Kusaka | - | Guardnoid Gash (voice) |
| Haruna Ikezawa | - | Narrator |
| Rest of cast listed alphabetically: |
| Takuzô Kamiyama | - | Guardnoid Butchy (voice) |
| Toru Sakai | - | Gou Omura / Doctor Obular |
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