Suggestions by @ianfranklin

Jordan Peele

as Baxter Stockman in Batman vs Teenage Mutant Ninja Turtles

Score: +1

Tom Hiddleston

as Starscream in Transformers: War for Cybertron

Score: -2

Thomas Jane

as Ironhide in Transformers: War for Cybertron

Score: 0

Dylan O'Brien

as Bumblebee in Transformers: War for Cybertron

Score: +8

Frank Welker

as Megatron in Transformers: War for Cybertron

Score: 0

Idris Elba

as Zeta Prime in Transformers: War for Cybertron

Score: -1

Tom Hardy

as Warpath in Transformers: War for Cybertron

Score: -1

Fred Tatasciore

as Ratchet in Transformers: War for Cybertron

Score: +2

Dwayne Johnson

as Ironhide in Transformers: War for Cybertron

Score: -1

Simon Pegg

as Jetfire in Transformers: War for Cybertron

Score: 0

Peter Cullen

as Optimus Prime in Transformers: War for Cybertron

Score: +2