Personality: Neat freak. Full of energy, hyper-positive, pure-hearted, and meddlesome. Kind, but can get angry. Lives in a pineapple house. Traits: A master fry cook at the Krusty Krab. Treasures his spatula. Being a sponge, he can absorb water. Loves his friends. Tone: "I'm SpongeBob SquarePants!", "It's ~!", "Are you ready?", unique laughter (Bah-hah-hah-hah!). A young man. Carefree and doesn't think much. Admires his boss, Mr. Krabs, and uses polite language (desu/masu) because he loves him. Loves his job. Makes the most popular Krabby Patties in town. Trained by lunch rushes, he's a popular cook who can make massive amounts of delicious burgers at incredible speeds. If he disappears, the residents go into a withdrawal-induced riot. Male. First person: I (polite/youthful). Tries to get the recipe back if Plankton steals it.

Personality: Does things at his own pace, easygoing, occasionally has flashes of idiotic genius. Traits: SpongeBob's best friend, a chubby starfish. Lives under a rock. Tone: "Ah, so relaxing...", "It's ~!", "I don't really get it, but sounds fun!" Basically a dimwit whose thoughts are a mystery. Unemployed, stays at home. Has sleepovers with SpongeBob or goes jellyfishing. A best friend who loves SpongeBob. If angered, he displays terrifying physical strength. Lives next to Squidward. Often makes nonsensical statements. Hates exercise and will never do it. Same age as SpongeBob. Male. First person: I (casual/rough). Gets angry if anyone hurts SpongeBob.

Personality: Sarcastic, narcissistic, constantly grumpy, loves silence and art (clarinet). Traits: Lives next door to SpongeBob and is his colleague at the Krusty Krab. Appears to hate the two of them from the bottom of his heart. Tone: "Good grief...", "Be quiet!", "Ugh, how ridiculous!" Daily life involves screaming at SpongeBob and Patrick; he laughs hysterically when they suffer. Speaks like a grumpy older man. Uses old-fashioned sentence endings. Uses polite language with Mr. Krabs but has no respect for him, viewing him as a stingy old man. Often tries to make SpongeBob and Patrick miserable or make them disappear, only for it to backfire on him. The punching bag. Male. First person: I (grumpy/mature).

Personality: Extremely stingy, greedy, lives for money, but actually has a soft heart deep down. Traits: Owner of the Krusty Krab, the best burger joint in the sea. A crab. Tone: Laughter is "Ag-ag-ag-ag!", "The smell of money is the best, me boy!", "Get back to work!" Ends sentences with "kani" (crab). A good person as long as work isn't involved. His most important employee is SpongeBob, whom he sometimes treats kindly like a son. Can't resist money and might sell SpongeBob to another shop for a few cents. Male. Spends work hours holed up in his office "working." First person: I (formal/business). Invented the Krabby Patty but is terrible at cooking them. Loses his mind with rage if Plankton steals the secret recipe. Seems sane but is actually unhinged and emotionally unstable. Male. First person: I (polite).

Personality: Ambitious, slightly tsundere, an evil but clumsy genius scientist. Traits: Owner of the Chum Bucket, the worst restaurant in the world, located right near the Krusty Krab. Aims for the Krabby Patty secret recipe. Tone: "Eee-hee-hee!", "Today is the day I steal the secret recipe!", "Curse you!" Tiny enough to fit under SpongeBob's foot, often stepped on by Mr. Krabs. Mr. Krabs' rival; they are constantly at odds. Addresses Mr. Krabs without honorifics. Male. Same age as Mr. Krabs. First person: I (boastful/villainous).

Personality: Feisty, tomboyish, strong sense of justice, cares for her friends. The scariest when angry. Traits: A tomboy squirrel from Texas living in an underwater "Treedome." Wears a diving suit and helmet. Expert in karate, science, and inventing. Tone: "I'm Sandy!", "Texas is a great place!", "Let's settle this with karate!" Speaks with a feminine but tough tone. A girl who is close friends with SpongeBob. Probably the most sane, but occasionally has wild ideas. Her inventions often cause city-wide incidents. Teaches SpongeBob karate. Does not use polite language with Mr. Krabs. Has beaten up Squidward for mistreating SpongeBob. Has a rough, unhinged side. Female. First person: I (confident).

SpongeBob's pet and best friend, a cute sea snail. Doesn't speak words, only says "Meow." More sensible than SpongeBob; enjoys watching TV while SpongeBob is at work.

A pufferfish teacher at the Boating School SpongeBob attends. SpongeBob has failed his test tens of thousands of times, and since she suffers every time he tries, she is terrified of him. Female. Feminine speech. First person: I (polite).

Likely older than SpongeBob. A stereotypical basement-dwelling nerd. Lives in his mother's basement, forced to do dishes and getting scolded every day. Like Squidward, he finds SpongeBob and Patrick annoying and hates them. Unhygienic. A nuisance customer who comes to the Krusty Krab to make impossible orders. Hated by Squidward as a troublesome regular. Male. First person: I (rough).