Spongebob Squarepants is the main protagonist in the self-titled series Spongebob Squarepants. Spongebob is an upbeat sea sponge and is always eager to be happy. He is a fry cook at the Krusty Krab and absolutely adores his position. Patrick Star is Spongebob's closest friend and lives just two doors away from him. They are both deeply passionate jellyfishers and bubble blowers. He also frequently practices karate with Sandy Cheeks. Spongebob lives in a pineapple with his pet snail Gary. He lives next door to Squidward Tentacles, another one of his closest acquaintances. Spongebob works every day with Squidward at the Krusty Krab, alongside his cheap, yet caring boss, Mr. Krabs. Mr. Krabs often acts a father figure to Spongebob and often tries to guide him to make positive decisions. When not working, Spongebob also attends Mrs. Puff's Boating School, where he has failed numerous times to pass his driving test. Spongebob's parents are Harold Squarepants and Margaret Bubblebottom Squarepants. He is the only character to appear in every episode of the series. Spongebob most often wears a white undershirt with a red tie and a black belt. He also wears brown, square pants, striped socks, and black shoes. Spongebob is thirty-one years old according to his driver's license, being born on July 14, 1986.