宇宙なんちゃら こてつくん

藤原夏海

Kotetsu (voice)

ムロツヨシ

DAXA-kun (voice) / Narrator (voice)

Ayana Taketatsu

Hikaru (voice)

山口勝平

Jii-chan (voice)

玉木雅士

Lou (voice)

Junya Enoki

Niko (voice)

山口茜

Otama (voice)

伊藤彩沙

Michiko (voice)

Yutaka Aoyama

Principal (voice)

Tsuyoşi Koyama

Tobio (voice)