The hat kid is an overweight fish that is light green and missing a front tooth. He wears a red cap, a light blue T-shirt, and dark green shorts. He has olive fins and pink lips.
Role in series
"The Grill is Gone"
He decides to turn the grill into a race cart. He also races against Mr. Krabs and SpongeBob. At the end of the episode, he turns the Krusty Krab into a race cart.
"SpongeBob's Big Birthday Blowout"
He is one of the many guests at SpongeBob's surprise birthday party, where he pulls pranks on the various partygoers. He hits Tom with a cupcake, and Tom then asks Squidward for one of his paintings so he can hit the hat kid back. Tom then throws it, but it misses. The hat kid later sprays whipped cream on the floor and runs off. Mrs. Puff comes by and slips on the whipped cream.