Suggestions by @odaspion

Wyatt Oleff

as Luke Skywalker in Star Wars

Score: -1

Dean-Charles Chapman

as Luke Skywalker in Star Wars

Score: +1

Gary Oldman

as Sheev Palpatine in Star Wars

Score: +1

Ralph Fiennes

as Sheev Palpatine in Star Wars

Score: +2

Zoë Kravitz

as Ashoka Tano in Star Wars

Score: +1

Cliff Curtis

as Jango Fett/Boba Fett (Adult) in Star Wars

Score: 0

Charles Dance

as Count Dooku in Star Wars

Score: +1

Peter Capaldi

as Sheev Palpatine in Star Wars

Score: -1

Chiwetel Ejiofor

as Mace Windu in Star Wars

Score: +1

Tanner Buchanan

as Anakin Skywalker (Teens) in Star Wars

Score: +1

Millie Bobby Brown

as Padme Amidala in Star Wars

Score: +1

Asher Angel

as Anakin Skywalker (Teens) in Star Wars

Score: +2

Christian Bale

as Qui-Gon Jinn in Star Wars

Score: +1

Brian Cox

as Obi-Wan Kenobi (Old) in Star Wars

Score: +1

James McAvoy

as Obi-Wan Kenobi (Prequels) in Star Wars

Score: +1

Richard Madden

as Obi-Wan Kenobi (Prequels) in Star Wars

Score: +2