Suggestions by @anthonysan

Cas Anvar

as Mullah Rahmaan in Call of Duty: Black Ops Live Action Series

Score: +3

Stefan Kapičić

as Nikolai in Call of Duty 4: Modern Warfare

Score: +2

John Noble

as Unicron in Transformers: Prime (Bayverse version)

Score: +4

Will Poulter

as Lieutenant Gaz in Call of Duty 4: Modern Warfare

Score: +1

Gene Farber

as Sergeant Kamarov in Call of Duty 4: Modern Warfare

Score: 0

Barry Sloane

as Lt. John Price in Call of Duty 4: Modern Warfare

Score: +1

Ice Cube

as Joseph Bowman. in Call Of Duty: Black Ops 1 and 2.

Score: +5

Lana Condor

as Nya in Ninjago

Score: +2

Daniel Dae Kim

as Ray in Ninjago

Score: +1

Tom Holland

as Jay in Ninjago

Score: +3

Ryan Potter

as Kai in Ninjago

Score: -3

Tom Holland

as Jay in Ninjago (Live Action)

Score: +4

Nika Futterman

as Shadow Striker in Bumblebee 2

Score: +1

Keanu Reeves

as Prowl in Transformers

Score: -1

Sofia Carson

as Angel in The Resisters series

Score: +2