SpongeBob is working at a restaurant in that town, he prepares the hamburgers. He is also understood by his neighbors who play an important role in this series. SpongeBob Squarepants is the main character in this series, he lives in a huge pineapple. These characters appear almost in every episode in this series. Krabs Plankton and Karen Sandy Cheeks Mrs. Some main characters in this series: SpongeBob SquarePants Patrick Star Squidward Tentacles Mr. This animated series shows us the world at the sea bottom. The SpongeBob games are based on the American animated series, SpongeBob Squarepants.