The Mad Doctor/YMMV


 * Nightmare Fuel: Easily one of Disney's most chilling shorts outside of Education for Death and Night on Bald Mountain.
 * Complete Monster: Dr. XXX qualifies for this trope as much as a one-shot cartoon character possibly could.
 * Interestingly, his counterpart in the Epic Mickey game series does NOT qualify since he's less twisted and ultimately redeemable.