- Mayumi Tanaka (Monkey D. Luffy (voice))
- Kazuya Nakai (Roronoa Zoro (voice))
- Mari Yaguchi (Yoko (voice))
- Akemi Okamura (Nami (voice))
- Kappei Yamaguchi (Usopp (voice))
- Hiroaki Hirata (Sanji (voice))
- Ikue Otani (Tony Tony Chopper (voice))
- Yuriko Yamaguchi (Nico Robin (voice))
- Kazuki Yao (Franky (voice))
- Katsuhisa Houki (Jinbe (voice))
- Cho (Brook (voice))
- Hideyuki Tanaka (Donquixote Doflamingo (voice))
One Piece — S13E422
Episode: A Deadly Infiltration! The Underwater Prison Impel Down
Air Date: 2009-10-18
Runtime: 24 min
Overview
Luffy and Boa arrive at Impel Down, but only thirty-three hours remain until Ace's execution. To save him, the Snake Princess must find a way to hide Luffy during her full-body search!