The following SpongeBob SquarePants characters make the most of appearances during the series.
Main characters
SpongeBob SquarePants (character)
SpongeBob SquarePants (voiced by Tom Kenny) is the main protagonist of the animated comedy series of the same name. More ⇉
Eugene H. Krabs (voiced by Clancy Brown) is a sea crab who is the owner of the Krusty Krab. More ⇉
Patrick Star (voiced by Bill Fagerbakke) is SpongeBob's best friend. More ⇉
Squidward Tentacles (voiced by Rodger Bumpass) is the neighbor of SpongeBob and Patrick. More ⇉
Sandra "Sandy" Cheeks (voiced by Carolyn Lawrence) is a squirrel and one of SpongeBob's best friends. More ⇉
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Mrs. Puff is a blowfish whose occupation is to teach her students driving lessons at her boating school. More ⇉
Sheldon J. Plankton (voiced by Mr. Lawrence) is Mr. Krabs' nemesis and the main antagonist in the SpongeBob SquarePants series. More ⇉
Karen Plankton (voice of Jill Talley) Plankton's computer wife. More ⇉
Recurring characters
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Larry the Lobster is a bodybuilder lobster who works as a lifeguard at Goo Lagoon and works out at a gym. More ⇉
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Patchy the Pirate is a live-action character who is a pirate and hosts SpongeBob SquarePants specials. More ⇉
Bubble Bass (voice of Dee Bradley Baker) is an obese and picky bass fish. More ⇉
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Painty the Pirate (voice of Patrick Pinney) is a painting of Burger Beard's head who sings the "SpongeBob SquarePants Theme Song." More ⇉
Minor characters
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Harold is a light blue fish that appears in numerous episodes. More ⇉
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Nancy-Suzy Fish
a female fish that appears often.
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A yellow fish with a purple dorsal fin on his back and blue shorts. Possibly the background character with the most appearance on the show's history. More ⇉
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A major Krusty Krab customer who works as camera man and mattress salesman. He is also known as the "Chocolate Maniac" in the Season 3 episode "Chocolate with Nuts." More ⇉