Scar

Scar elevates Disney villainy to Shakespearean tragedy, voiced by Jeremy Irons with a theatrical menace that haunts millions of 1990s children. His song 'Be Prepared' features 200 marching hyenas, a sequence that cost $1 million in 1994 animation budgets. Scar’s cunning surpasses Pennywise’s chaos: he manipulates a kingdom into famine, resulting in over 30% of the Pride Lands being destroyed by fire in the film. Responsible for the death of the franchise’s main hero Mufasa, he is one of the few villains to succeed—he controls the kingdom for years, making him statistically the most impactful on the list in terms of direct plot damage.