Suggestions by @elijahj

Ian Armitage

as Ben Tennyson in Ben 10

+5-17Score: -12

Ian Armitage

as Link in The Legend of Zelda

+3-12Score: -9

Joker (Joaquin Phoenix)

as Batman in The Dark Knight Original Trilogy (2005-2012)

+1-7Score: -6

Jenna Ortega

as Julia Maximoff in Marvel Cinematic Universe

+2-0Score: +2

Henry Cavill

as Marc Spector in Marvel Cinematic Universe

+1-3Score: -2