- 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 — S2E42
Episode: The Snail Man's Human Experiments!
Air Date: 1973-12-01
Runtime: 25 min
Overview
Marshal Armor's Snailbura implants its sinister eggs into the residents of an apartment complex. These incubate in the victims' bloodstream developing into larvae to enslave them. Snailbura's first experiment is ordered to kill Kazami Shiro, but dies before she can complete her mission. Her sister Misako accuses Shiro of murder and Snailbura promises to give her the power to avenge her sibling's death�