Patrick Star is SpongeBob's best friend as well as one of his neighbors. He is a naive and overweight pink sea star. Patrick is quite overweight due to his laziness as well as his enjoyment of eating ice cream, Krabby Patties, Triple Gooberberry Sunrises, Krusty Combos, and many other kinds of junk food and inedible sources.
SpongeBob finds out that Patrick’s “job” is fake in the episode 'Rock-a-Bye Bivalve.'
He lives under a brown rock in the underwater city of Bikini Bottom. SpongeBob and Squidward are his neighbors. Both Patrick and SpongeBob bother Squidward, though they do not like to do it and they do it unknowingly and have good intentions.
Patrick also has an older sister named Sam Star. Her first mentioning is in 'Something Smells,' but in that episode, he claims he doesn't have a sister. She makes her debut in 'Big Sister Sam.'