Suggestions by @jonmbeasty

Elizabeth Debicki

as Lana Beniko in Knights of the Fallen Empire & Eternal Throne Trilogy/Series

Score: +1

Chiwetel Ejiofor

as The Outlander in Knights of the Fallen Empire & Eternal Throne Trilogy/Series

Score: +1

Joe Dempsie

as Mical in Knights of the Old Republic II

Score: +2

Iain Glen

as Saren in Mass Effect on HBO

Score: +3

Joe Morton

as Captain Anderson in Mass Effect on HBO

Score: +1

Ksenia Solo

as Tali'Zorah in Mass Effect on HBO

Score: +5

John Goodman

as Urdnot Wrex in Mass Effect on HBO

Score: +1

Alan Tudyk

as Garrus Vakarian in Mass Effect on HBO

Score: +1

Sylvia Hoeks

as Liara T'Soni in Mass Effect on HBO

Score: +1

Ezra Miller

as Jeff "Joker" Moreau in Mass Effect on HBO

Score: 0

Colin O'Donnell

as Kaiden Alenko in Mass Effect on HBO

Score: +1

Zazie Beetz

as Ashley Williams in Mass Effect on HBO

Score: +1

Jon Bernthal

as Commander Shepard in Mass Effect on HBO

Score: 0

Adam Driver

as Harvey Dent in Batman

Score: +1

Paula Patton

as Poison Ivy in Batman

Score: +1

Toby Kebbell

as Clayface in Batman

Score: +1

Colin Firth

as Alfred in Batman

Score: +1

Iwan Rheon

as Joker in Batman

Score: 0

Mark Hamill

as Jim Gordon in Batman

Score: 0

James McAvoy

as Edward Nigma in Batman

Score: +1