@Swordsman of Mana
Good non-call on Patrick. That guy has the widest range of personalities in the show. As the show goes on they seem to tinker with him a bit with every episode. When the show was first on, he was actually fairly intelligent at times, if dumpy. Specifically I'm thinking of the one where he puts the radio in Spongebob's head and gives him boating school advice, the entirety of which made him out to be one of the show's more fluent characters.