Suggestions by @omerunver

Charlie Hunnam

as Kelsier in Mistborn

Score: +1

Julia Butters

as Vin in Mistborn (Era 1)

Score: +1

Haluk Bilginer

as Taravangian in The Stormlight Archive

Score: 0

James McAvoy

as Szeth-son-son-Vallano in The Stormlight Archive

Score: +1

Kelsey Asbille

as Jasnah Kholin in The Cosmere

Score: +1

Sam Claflin

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

Score: +2

Kelsey Asbille

as Jasnah Kholin in Cosmere Stormlight

Score: +1

Julia Butters

as Vin in Mistborn

Score: +3

Julia Butters

as Vin in The Cosmere

Score: +3

Haluk Bilginer

as Taravangian in The Stormlight Archive

Score: +3

Kelsey Asbille

as Jasnah Kholin in Stormlight Archive

Score: +1

Haluk Bilginer

as Taravangian in Stormlight Archive

Score: +4

Haluk Bilginer

as Taravangian in The Cosmere

Score: +3

Haluk Bilginer

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

Score: +5

Haluk Bilginer

as Taravangian in Cosmere

Score: +3

Kelsey Asbille

as Jasnah Kholin in Cosmere

Score: +3

Cailee Spaeny

as Vivenna in Cosmere

Score: +1

Charlie Hunnam

as Kelsier in Cosmere

Score: +2

Henry Cavill

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

Score: +2

Kelsey Asbille

as Jasnah Kholin in Cosmere (stormlight, mistborn, elantris, warbraker, etc)

Score: +1