Suggestions by @felipecordeiro

Isabela Merced

as Thalia Grace in Percy Jackson and the Olympians

Score: +30

Owen Vaccaro

as Percy Jackson in Percy Jackson and the Olympians

Score: -29

Lola Flanery

as Tamara Rajavi in Magisterium

Score: -6

Dakota Daulby

as Kronos in Percy Jackson and the Olympians

Score: -3

William Franklyn-Miller

as Nico di Angelo in Percy Jackson and the Olympians

Score: -1

Lola Flanery

as Annabeth Chase in Percy Jackson and the Olympians

Score: -26

Lola Flanery

as Thalia Grace in Percy Jackson and the Olympians

Score: +35