Makoto Tsumura
Astro Boy/Atom (voice)
Miki Maruyama
Uran (voice)
Hisashi Katsuta
Dr. Ochanomizu (voice)
Ami Koshimizu
Ena (voice)
Chikao Ohtsuka
Dr. Tadeue (voice)
Unsho Ishizuka
Igza (voice)
Motoko Kumai
Tamao (voice)
Susumu Chiba
Shibugaki (voice)
Yuuko Satou
Kenichi (voice)
Toshihiko Nakajima
Captain (voice)
Akiko Kawase
Female Personnel (voice)
Eiji Miyashita
Operator (voice)
Keiichi Sonobe
Arifi (voice)