Cavity Goon

The Cavity Goon is the main antagonist of the series. The Cavity Goon (otherwise known as Goonius Nemesis III) is a disgusting sight....a green creature covered with warts and a mouth full of decayed sharp teeth. He wears clothes that appear to be made of ripped-up leaves and is constantly bothering Timmy and his friends. In the episode "Lost My Brush", he even tried to kidnap Timmy by using the kidnapped Brushbrush to lure him in an attempt to turn him over to the Tooth Fairy for money.