- 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 — S1E55
Episode: Cockroach Man!! The Terrifying Bacterial Ad-Balloon
Air Date: 1972-04-15
Runtime: 25 min
Overview
Shocker develops a bacteria that ages biological cells. By putting the bacteria into the balls of a bowling alley, they conduct an experiment to rapidly age young people.