Yoshiko Matsuo

Keroppi (voice)

伊倉一恵

Den Den (voice)

深雪さなえ

Teru Teru (voice)

峰あつ子

Pika (voice)

西宏子

Pikki (voice)

大竹宏

Piero (voice)

青木和代

Don (voice)

Kenichi Ogata

Keroppa (voice)

富田耕生

Max (voice)

Kyôko Yamada

Kyorosuke (voice)

Mahito Tsujimura

Meries (voice)

Masaki Maeda

Koroppi (voice)

三浦雅子

Keroleen (voice)

広瀬正志

Hagetarō (voice)

柳沢三千代

Noberun (voice)

真山亜子

Goro (voice)

巴菁子

Keroma (voice)

鈴木富子

Junk (voice)

Tōru Furuya

Athos (voice)

Chafurin

Additional Voices (voice)