The Scrappy: Zeus the Guitar Lord, especially for fans of Squidward. It wasn’t his fault that Fab and Fancy was cancelled and his show took its place. But playing loud rock music inside Squidward's house for two weeks straight, with no consideration for the fact that it’s 5 in the morning, is what siphoned off his likability.
The Woobie: Squidward. All he wanted to do was to start his own show, but SpongeBob, Patrick, Mr. Krabs, Sandy, Pearl, Plankton and other citizens ruin it for him.
I ♥ Dancing:
Alternate Character Interpretation: It's strongly implied that Squilliam was hired by SpongeBob as payback for Squidward ruining his audition, given that he rather smugly tells Patrick "I was up for that part," when watching him be tortured.