1. Scrappy-Doo: He doesn't shut up... how can the gang stand him?! They're real troopers, I tell ya! Troopers!
2. Vincent Van Ghoul: No offense to Vincent Price, but I find this character very unappealing... I mean, he's rude, hardly ever has anything nice to say to the gang when they're doing their best, and he always looks and acted super PO'ed.
There we go. ^_^