Suggestions by @georgerichard

Chris Pine

as Imperial Jagged Fel in Star Wars

Score: +1

Chris Evans

as Jaden Solo in The Star Wars Sequel Trilogy (Alternate)

Score: 0

Amanda Lawrence

as Commander D'Acy in Star Wars

Score: +1

Billie Lourd

as Lieutenant Connix in Star Wars

Score: +1

Lupita Nyong'o

as Maz Kanata in Star Wars

Score: +1

Cillian Murphy

as General Hux in Star Wars

Score: +2

Bill Kipsang Rotich

as Nien Nunb in Star Wars

Score: +1

Billy Dee Williams

as Lando Calrissian in Star Wars

Score: +1

Eva Green

as Lady Lumiya in Star Wars

Score: -1

Daisy Ridley

as Rey Palpatine in Star Wars

Score: +3

Bonnie Aarons

as Lady Palpatine in Star Wars

Score: +3

Richard Madden

as Ben Skywalker in Star Wars

Score: +1

Frank Oz

as Yoda in Star Wars

Score: 0

Samuel L. Jackson

as Mace Windu in Star Wars

Score: +1

Liam Neeson

as Qui-Gon Jinn in Star Wars

Score: +1

Ewan McGregor

as Obi-Wan Kenobi in Star Wars

Score: +1

Elena Satine

as Rhea in Star Wars

Score: +1

Daisy Ridley

as Tahiri Veila in Star Wars

Score: +1

Sophie Turner

as Tahiri Veila in Star Wars

Score: -1

Chris Evans

as Anakin Skywalker in Star Wars: The Alternate Prequel Trilogy

Score: 0