Yoshiko Matsuo

Keroppi (voice)

Kazue Ikura

Den Den (voice)

Sanae Miyuki

Teru Teru (voice)

Atsuko Mine

Pika (voice)

Hiroko Nishi

Pikki (voice)

Hiroshi Ôtake

Piero (voice)

Kazuyo Aoki

Don (voice)

Kenichi Ogata

Keroppa (voice)

Kosei Tomita

Max (voice)

Mahito Tsujimura

Meries (voice)

Masako Miura

Keroleen (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)