Kosei Tomita
Shunsaku Ban (voice)
Junichi Takeoka
Rock (voice)
Nachi Nozawa
Black Jack (voice)
Mari Shimizu
Astro Boy as "Adam" (voice)
Hisashi Katsuta
Professor Ochanomizu as "Dr. Narzenkopf" (voice)
Yoshiko Ohta
Princess Sapphire as "The Empress of the Mu Empire" (voice)
Chikao Ohtsuka
Duke Red as "Director Credit" (voice)
Kaneta Kimotsuki
Hosuke Sharaku (voice)
Mami Koyama
Chocola as "Milly" (voice)
Kouichi Chiba
Don Dracula as "Dondora" (voice)
Koji Yada
Skunk Kusai (voice)
Kenji Utsumi
Acetylene Lamp (voice)
Masashi Amenomori
Boon Marukubi (voice)
Shinji Toyota
Kojiro Sasaki (voice)
