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A strange robot demands that Astro Boy and Professor Ochanomizu accompany him to an unknown kingdom at the bottom of the sea.
Release date: 1963-06-11
Season number: 1
Episode number: 24
Runtime: 27 minutes
Kazue Tagami - Atom (voice), Youko Mizugaki - Uran, Akihiko Mitsueda - Atlas, Shingo Kanemoto - Detective Tawashi, Kiyoshi Komiyama - Cobalt, Hisashi Yokomori - Tenma Hakase, Shinpei Sakamoto - Detective Nakamura