King Krabs is a medieval monarch of Bikini Bottomshire sometime before the 12th century and the medieval ancestor of Mr. Krabs. He first appears in the episode "Dunces and Dragons" where he is the king of Bikini Bottomshire.
He looks the same as Mr. Krabs. He wears a light blue shirt and purple-blue shorts, and king clothing and a crown. In Bikini Bottom Brawlers, he wears gold colored gloves for his claws.
He is an ancestor of the modern-day Krabs family, which includes Eugene H. Krabs and Pearl Krabs. He has one known child: a daughter, Princess Pearl, who resembles the modern day Pearl Krabs. He is enemies with Planktonamor, a medieval ancestor of Sheldon J. Plankton.