The Seatopians (シートピア海底人,   Shītopia Kaitei Hito?, lit. Seatopia Seabed People) are a race of underground people which first appeared in Godzilla vs. Megalon.


Showa Series

Godzilla vs. Megalon

The Seatopians are an illustrious race, ruled by Antonio. They were the first civilization to inhabit the Earth, and reside in a huge subterranean country called Seatopia, home to massive underground and underwater cities which resemble those constructed by the people of Ancient Greece and the Roman Empire. 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. At first, the race remained quiet, despite the mounting damage to their underground cities as a result of nuclear tests on the surface.

The final straw came when a massive test undertaken near the Aleutian Islands near Alaska in 1973 sent a huge earthquake across the Pacific Ocean, destroying Monster Island and crippling the capital city of Seatopia.

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 kaiju 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.


  • The Seatopians are considerably more misguided than other 'alien' races. While most of the other aliens intended to take Earth for themselves, the Seatopians attacked the humans because they felt that the Earth was being mistreated by them.

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