- Ryutaro Imai (Baku Yorozu / Kamen Rider ZEZTZ)
- Maho Horiguchi (Nem)
- Kenta Mishima (Tetsuya Fujimi)
- Rina Onuki (Nasuka Nagumo)
- Miki Yagi (Minami Yorozu)
- Yuki Furukawa (NOX)
- Jay Kabira (Zero (voice))
- Koichi Yamadera (ZEZTZ Driver (voice))
Kamen Rider — S2E51
Episode: You Are Rider Number 4!!
Air Date: 1974-02-02
Runtime: 25 min
Overview
Marshal Armor has developed a powerful Pluton Rocket that is more powerful than the H-Bomb and the Great Leader orders that it be aimed at Tokyo. Shiro and Joji become suspicious when a group of mountaineers are killed mysteriously in a remote valley. While investigating, they are attacked by mutant Crawganna who protects the Destron missile base. But, V3 and Riderman fail to stop Marshal Armor from starting the cataclysmic countdown�