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Patrick Star is a fictional character in the American animated television series SpongeBob SquarePants. He is voiced by actor Bill Fagerbakke and was created and designed by marine biologist and animator Stephen Hillenburg. He first appeared in the series' pilot episode "Help Wanted" on May 1, 1999. In addition to his supporting role on SpongeBob SquarePants, Patrick also serves as the main protagonist of The Patrick Star Show, which premiered in 2021.

Seen as a lazy, overweight and dimwitted pink starfish, Patrick lives under a rock in the underwater city of Bikini Bottom next door to Squidward Tentacles' moai. His most significant character trait is his lack of common sense, which sometimes leads him and his best friend, SpongeBob SquarePants, into trouble. Patrick is unemployed and a self-proclaimed expert in the "art of doing nothing".

The character has received positive reactions from critics and fans alike. Patrick has been included in various SpongeBob SquarePants-related merchandise, including trading cards, video games, plush toys, and comic books. He is a leading character in The SpongeBob SquarePants Movie (2004), The SpongeBob Movie: Sponge Out of Water (2015), and The SpongeBob Movie: Sponge on the Run (2020).