- Ear Worm: Big! Bad! Beetleburgs!
- The Scrappy: Little Ghoul is abrasive and troublesome, but for some, the episode "Who's That Ghoul" really pushes her into Scrappy territory. She has done nothing for the protagonists but gotten them chased by the house monsters, but when a bounty hunter comes looking for her- for a crime she definitely committed- Flabber and the Borgs go to great lengths to defend her.
- Villain Sue: Nukus, before becoming legitimate Big Bad - at which point, he experiences his predecessor's usual success rate..