List of characters

The following is a list of main and recurring characters in SpongeBob SquarePants. For a list of minor and one-off characters, see this article.

Main characters

There are ten main characters in the series.

• SpongeBob SquarePants (voiced by Tom Kenny) — An optimistic yellow sea sponge who works as a fry cook at the Krusty Krab. He is perpetually enrolled in boating school. He debuts in "Help Wanted."
• Patrick Star (voiced by Bill Fagerbakke) — SpongeBob's best friend, a dimwitted yet pleasant pink starfish. He tends to unintentionally land himself and SpongeBob in trouble. He debuts in "Help Wanted."
• Squidward Tentacles (voiced by Rodger Bumpass) — An octopus who is the pessimistic coworker and neighbor of SpongeBob. He enjoys interpretive dance and playing the clarinet. He debuts in "Help Wanted."
• Mr. Krabs (voiced by Clancy Brown) — The owner of the Krusty Krab and SpongeBob's employer. He talks like a pirate and has an obsession for money. He debuts in "Help Wanted."
• Sheldon Plankton (voiced by Doug Lawrence) — An evil planktonic copepod who wants to run the Krusty Krab out of business. He runs the unsuccessful Chum Bucket restaurant. He debuts in "Plankton!"
• Karen Plankton (voiced by Jill Talley) — Plankton's sentient computer sidekick who gives him his evil plans. She is far more competent than Plankton. She debuts in "Plankton!"
• Sandy Cheeks (voiced by Carolyn Lawrence) — A squirrel from the surface who befriends SpongeBob and lives in a glass dome full of air. She debuts in "Tea at the Treedome."
• Mrs. Puff (voiced by Mary Jo Catlett) — A patient and elderly pufferfish who is SpongeBob's boating school teacher. She is currently dating Mr. Krabs. She debuts in "Boating School."
• Pearl Krabs (voiced by Lori Alan) — A teenage whale who is Mr. Krabs' daughter. She will inherit the Krusty Krab and become its owner when she grows older. She debuts in "Squeaky Boots."
• Gary the Snail (voiced by Tom Kenny) — SpongeBob's pet sea snail, who communicates by meowing like a cat. He often proves to be more clever than his owner. He debuts in "Help Wanted."

Recurring characters

• Patchy the Pirate (played by Tom Kenny) — A pirate who runs the fictional SpongeBob SquarePants fan club. He is the host of most special episodes. He debuts in "Christmas Who?"
• Potty the Parrot (voiced by Stephen Hillenburg and later Paul Tibbitt) — Patchy's sarcastic pet parrot. She is portrayed as a poorly-made puppet with obvious strings. She debuts in "Christmas Who?"
• The French Narrator (voiced by Tom Kenny) — An ocean explorer who narrates many episodes as if they were documentaries about the sea. He debuts in "Help Wanted."
• Mermaid Man and Barnacle Boy (voiced by Ernest Borgnine and Tim Conway) — A duo of semi-retired superheroes who previously starred in a television show. They debut in "Mermaid Man and Barnacle Boy."
• The Dirty Bubble (voiced by Charles Nelson Reilly and Tom Kenny) — Mermaid Man and Barnacle Boy's greatest enemy. He debuts in "Mermaid Man and Barnacle Boy II."
• Man Ray (voiced by John Rhys-Davies and Bob Joles) — Mermaid Man and Barnacle Boy's other nemesis. He debuts in "Mermaid Man and Barnacle Boy III."
• Larry the Lobster (voiced by Doug Lawrence) — A bodybuilder and workout fanatic who occasionally appears in beach-themed episodes. He debuts in "Ripped Pants."
• The Flying Dutchman (voiced by Brian Doyle-Murray) — A ghost pirate who haunts the seas and owns a glowing ship that floats above Bikini Bottom. He debuts in "Scaredy Pants."
• King Neptune (voiced by John O'Hurley and Jeffrey Tambor) — A merman god who rules the sea and possesses magical powers. He debuts in "Neptune's Spatula."
• Realistic Fish Head (voiced by Doug Lawrence) — A trout who appears in the opening sequence and hosts various news programs in the series. He debuts in "Mermaid Man and Barnacle Boy II."
• Perch Perkins - A fish who is a news reporter. He debuts in The SpongeBob SquarePants Movie
• Jellyfish - Wild jellyfish who live in Jellyfish Fields. They debut in "Tea at the Treedome"
• Bubble Bass - An obsese and picky bass. He debuts in "Pickles".
• Hans - A sentient live-action hand who appears in the opening sequence. He debuts in "Suds".