ok this one isn't as much of a character rewrite as it is a story rewrite, but Din from oracle of seasons
we interact w/ her for a total of like 4 minutes before she's kidnapped and gone for the rest of the game until the end, for being a titular character for the game, she's gone for like 95%...
toon zelda in wind waker, maybe something else will come to mind but her personality shift I think is the biggest thing that could use a rewrite, she really shouldn't have been shelved like that
(also brown zelda but yeah)