The Mysterious Sewer System

Rie Nakagawa

Hana Kappa (voice)

Rumi Shishido

Momo Kappa (voice)

Cocoro Kikuchi

Sugiru (voice)

Kana Ueda

Tereterebozu (voice)

Tetsuya Yanagihara

Karabaccho (voice)

Mai Hashimoto

Mirorin (voice)

MAKO

Ageru (voice)

Kappei Yamaguchi

Garizo (voice)

Wataru Takagi

Chobei Kurohaneya (voice)

Hidenobu Kiuchi

Papa / Himagoro (voice)

Megumi Ozaki

Mama / Poppoline (voice)

Kenichi Ogata

Grandpa / Hasujiro (voice)

Mami Horikoshi

Grandma / Kasumi (voice)

Erina Kurita

Momo Kappa's Older Brother (voice)

Shoko Mitani

Kokeyan (voice)