Cast
Asumi Nakada
Mayumi
Masaki Tachi
Dr. Garigolin
Yusuke Numata
Jun / Wonder Seven (voice)
Tomoko Kawakami
Mayumi (voice)
Shigeru Chiba
Dr. Garigolin / Narrator (voic...
Wasabi Mizuta
Kechompa (voice)
Ryuuzaburou Ootomo
Kirugoa (voice)
Seizô Katô
Wonder Stick (voice)