SpongeBob SquarePants is a Nickelodeon TV Show that first aired in 1999 with the episodes Help Wanted, Reef Blower, and Tea at the Treedome. Help Wanted is the first episode. The main characters are SpongeBob SquarePants, Patrick Star, Eugine Krabs, Squidward Tentacles, Sheldon J. Plankton, Sandy Cheeks, Mrs. Puff, and Gary the Snail (A.K.A., Gary Wilson Jr.).