Suggestions by @omerunver

Levi Miller

as Elend Venture in Cosmere (stormlight, mistborn, elantris, warbraker, etc)

Score: -2

Julia Butters

as Vin in Cosmere (stormlight, mistborn, elantris, warbraker, etc)

Score: +7

Julia Butters

as Vin in Cosmere

Score: +3

Dave Franco

as Denth in Warbreaker

Score: +1

Nicholas Hoult

as Hoid in Warbreaker

Score: +1

Nicholas Hoult

as Lightsong in Warbreaker

Score: -2

Aaron Taylor-Johnson

as Vasher in Warbreaker

Score: +3

Barry Keoghan

as Wit in The Stormlight Archive

Score: 0

Barry Keoghan

as Wit in The Stormlight Archive

Score: -6

Julia Butters

as Vin Venture in The Mistborn Trilogy

Score: 0