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"If I have to memorize a single order, I think I'm going to explode!"

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King Poseidon is the main antagonist of The SpongeBob Movie: Sponge on the Run and its adaptations who is mentioned in SpongeBob's Director's Commentary, "SpongeHenge," "Nautical Novice," Squidward and the Golden Clarinet, "Accidents Will Happen," "High Sea Diving," and "Broken Alarm." He is the ruler of The Lost City of Atlantic City, has a golden clarinet, and is the namesake of both Poseidon Elementary School and the Poseidome Colosseum.


He is a teal merman with a green tail wearing a black wig, false teeth, and a pin and a chestplate with a gold belt with an octopus on it to hide his flab. He also bears a resemblence to King Neptune as both are teal, have a tail, and are both gods.



  • Poseidon is never referenced as the deity of the sea except in "SpongeHenge" where Incidental 45 references him.
  • It is assumed that he is 3000+ years old.
  • Poseidon is Greek and Neptune is Roman.

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I can turn into a skyscraper!
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