Suggestions by @hellooooo

Sadie Sink

as Rapunzel in Tangled (Live Action)

+14-49Score: -35

Taylor Swift

as Rapunzel in Tangled (Live Action)

+16-55Score: -39

Keira Knightley

as Padmé Amidala (flashback) in Princess Leia (TV Series)

+2-1Score: +1

Jamie Campbell Bower

as The Serpent in The Bible

+33-2Score: +31

Joseph Quinn

as Marius in Les Miserables

+5-1Score: +4

Millie Bobby Brown

as Eponine in Les Miserables

+1-1Score: 0