Sea-Serpent Island (episode)

Sea Serpent Island ("Umihebi Shima" 海蛇島気体人間) - English dub titled as "Sea Serpent Isle" - is an episode of the 1963 Astro Boy anime series.

Synopsis
At a beach Astro Boy spots a mysterious bottle with a note calling for rescue from an uncharted island called Sea Serpent Isle.

Characters
In Order of Appearance: