Ikuko Tani
Moominmamma (voice)

Yasuyuki Hirata
Snork (voice)
Masato Yamanouchi
Muskrat (voice)

Minoru Yada
Hemulen (voice)

Takaya Hashi
Police Inspector (voice)

Sumi Shimamoto
Fillyjonk (voice)

Yuko Kobayashi
Mymble (voice)

Fumihiko Tachiki
Astronomer #1 (voice)
Kazuomi Ikeda
Astronomer #2 (voice)

Ryuzou Ishino
Fubble (voice)