Kazuya Oki volunteers to undergo cybernetic surgery in the International Space Development Program in the United States to become an astronaut who can survive in outer space without the need for a bulky external suit. After a successful operation, he is given the codename "Super-1". Before he can depart for space, however, the base where he received his operation is attacked by the Dogma Kingdom. Only Kazuya can escape and is determined to avenge the deaths of the scientists, he returns to Japan and is trained by a martial arts expert, Master Genkai. With this knowledge, he can transform into the powerful Kamen Rider Super-1 to fight the evil Dogma Kingdom and later Jin Dogma.
Shunsuke Takasugi
Nobuo Tsukamoto
Teruaki Satô
Yumiko Tanaka
Katsuya Hayakawa
Rieko Nagatsuka
Kazunori Tanaka
Tadaomi Watanabe
Ayumu Iwaki
Moriyuki Ogido
Izumi Nakamura
Hitoshi Hagiwara
Akira Shioji
Toshihiko Miki
Kentarô Kaji
Hiroo Kawarazaki
Yoko Todo
Kazuo Suzuki
Yuki Yoshizawa
Shinji Nakae