Main Bikini Bottomites
| Bikini Bottomite | First appearance | Pet(s) | Birth date or age | Species |
|---|---|---|---|---|
SpongeBob SquarePants
|
"Help Wanted" | Gary the Snail and Shelley | July 14, 1986 | Sponge |
| Patrick Star
|
Rocky | Starfish | ||
| Squidward Tentacles
|
Snellie, Unnamed scallop | Octopus | ||
| Eugene H. Krabs
|
Mr. Doodles, Unnamed scallop (formerly) | November 30, 1942 (in "Sleepy Time") or September 25, 1960 (in "Mall Girl Pearl") | Crab | |
| Sheldon J. Plankton
|
"Plankton!" | Spot and a Labrador Retriever | November 30, 1942 | Plankton |
| Karen Plankton
|
December 20[1] | Supercomputer | ||
| Sandy Cheeks
|
"Tea at the Treedome" | Many, including Wormy | Squirrel | |
| Mrs. Puff
|
"Boating School" | Peanut worms and Annette | Pufferfish | |
| Pearl Krabs
|
"Squeaky Boots" | Mr. Doodles | Age 16 in "Whale of a Birthday"
|
Sperm whale |
| Gary the Snail
|
"Help Wanted" | Sea snail |
Other Bikini Bottomites
Non-Bikini Bottomites
| Non-Bikini Bottomite | First Appearance | Last Appearance | What They Are |
|---|---|---|---|
| Alternate Universe SpongeBob | "The Algae's Always Greener" | "Back to the Past" | A reflection in the mirror that says "Well your'e on your own pal" or "Well I thought it was a pretty good idea" |
| Alternate-Universe Patrick | "Roller Cowards" | "Back to the Past" | A reflection in the mirror that says "No you can't! You're a big crybaby!" to Patrick then gets knocked out by him |
| Appetizer | "Squilliam Returns" | A food monster Mr. Krabs invented with Salsa, Spinach, Meat & a can of Peas | |
| Davy Jones | "SpongeBob vs. the Big One" | A man at the bottom of the ocean | |
| Cheese Head Brown Pants | "What Ever Happened to SpongeBob?" | Mayor of New Kelp City | |
| Girly Teen Girl | "The Slumber Party" | Pearl thought she was SpongeBob disguised like a girl and she lives in Farawayville | |
| Iron Eye | "Shell of a Man" | "Shell of a Man" | Nickname of Mr. Krabs' navy buddies |
| Kevin C. Cucumber | "I'm Your Biggest Fanatic" | "Jolly Lodgers" | Captain of the "Jellyfish Spotters" |
| Lock-Jaw Jones | "Shell of a Man" | "Shell of a Man" | Nickname of Mr. Krabs' navy buddies. |
| Doctor Mannowar | "I'm Your Biggest Fanatic" | "I'm Your Biggest Fanatic" | Got stung by Big Lenny and lived. |
| Dr. Marmalade | "Chimps Ahoy" (only appearance) | One of the monkeys who inspects the invention (the tallest one) | |
| Professor Percy | "Chimps Ahoy" (only appearance) | One of the monkeys who inspects the invention (the leader) | |
| Lord Reginald | "Chimps Ahoy" (only appearance) | One of the monkeys who inspects the invention (The grumpy one) | |
| Monty P. Moneybags | "Artist Unknown" | One of the people crowding around thinking it is "Cooking Class" | |
| Muttonchop | "Shell of a Man" | Nickname of Mr. Krabs' navy buddies. | |
| Orville | "Squidville" | Security guards at Tentacle Acres. | |
| Lip Service | "Karate Island" | Second person Sandy has to defeat in Karate Island. | |
| Rock Bottom Bus Manager | "Rock Bottom" | "The Night Patty" | Steals SpongeBob's candy in Rock Bottom. |
| Miss Shell | "I'm Your Biggest Fanatic" | SpongeBob's Kindergarten Teacher. | |
| Drifter | "No Weenies Allowed" | Tries to get in and does due to the wig. | |
| The Tickler | "Karate Island" | First person Sandy has to defeat in Karate Island. | |
| Torpedo Belly | "Shell of a Man" | Nickname of Mr. Krabs navy buddies | |
| Master Udon | "Karate Island" | King of Condo Island | |
| Filthy Phil | Third person Sandy has to defeat in Karate Island | ||
| Kenny the Cat (character) | "Kenny the Cat" | Land-dwelling celebrity known for holding his breath underwater for long periods of time. | |
| Gorilla | "I Had an Accident" | "SpongeBob's Last Stand" | Gorilla (lifelike person in gorilla suit), is underwater for unknown reasons |
Villains
| Villain | First Appearance | Last Appearance | What Did They Do |
|---|---|---|---|
| Sheldon J. Plankton | Plankton! | Plankton's Intern | Steal the secret formula |
| Jack M. Crazyfish | Blackened Sponge | SpongeBob Freestyle Funnies 2018 | Tie a lady on a rail so she could get squashed. |
| Jumbo Shrimp
|
"Mermaid Man and Barnacle Boy II" | "The Bad Guy Club for Villains" | Dirty Bubble mentioned him or revolved to him in that episode |
| Kelp Thing
|
"Mermaid Man & Barnacle Boy VI: The Motion Picture" | Used as a foe in the making of the movie | |
|
|
Battle for Bikini Bottom |
Put all of Mermaid Man's red clothes with his white clothes, making his clothes pink. Forces SpongeBob to fight. | |
|
|
Lights, Camera, Pants! | Lights, Camera, Pants! | He tried to make Man Ray and Dirty Bubble do his doing but they refused to |
| Snorelonn | Nickelodeon Magazine |
Picture in SpongeBob SquarePants Crossword Puzzle | |
- ^ SpongeBob SquarePants Annual by Egmont Books UK
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