Seatopians

The Seatopians are an alien race which first appears in ''Godzilla vs. Megalon.

Godzilla vs. Megalon
The Seatopians are an illustrious race, ruled by Antonio. They were the first civilisation to inhabit the Earth, and reside in massive underground and underwater cities which resemble Ancient Greek and Ancient Roman cities. Having survived beneath the ground and waves for thousands of years, the Seatopians watched with anger as the Humans destroyed and flaunted the earth they saw as theirs. To combat the supposedly-evil humans, the Seatopians looked to their god, Megalon for assistance, and then liased with the Nebulans, obtaining Gigan for their use. They then sent the to attack Japan, and watched closely as the destruction of Japan mounted. Ultimately, they were thwarted when Godzilla and Jet Jaguar repelled the alien monster duo. The Seatopians then decided to continue their lives by sealing themselves away, but continued to scheme against those who they saw to be destroying the Earth.