Yoshiko Matsuo

Keroppi (voice)

Kazue Ikura

Den Den (voice)

Atsuko Mine

Pika (voice)

Hiroshi Ôtake

Piero (voice)

Kazuyo Aoki

Don (voice)

Kenichi Ogata

Keroppa (voice)

Kosei Tomita

Max (voice)

Mahito Tsujimura

Meries (voice)

Masashi Hirose

Hagetarō (voice)

Michiyo Yanagisawa

Noberun (voice)

Tomiko Suzuki

Junk (voice)

Toru Furuya

Athos (voice)

Chafurin

Additional Voices (voice)

Ginzo Matsuo

Additional Voices (voice)