Ratigan fell from Big Ben to his death in The Great Mouse Detective (1986)
Ursula was killed by a boat in The Little Mermaid (1989)
Texas Pete got wrenched with Bulk and Skeleton in Superted Kicks up the Dust (1985)
Jenner was killed by a dagger in The Secret of NIMH (1982)
Carface fell into a water in All Dogs Go To Heaven (1989)