Suggestions by @ricardor2000

Dwayne Johnson

as Garrus Vakarian in Mass Effect The Movie (Live Action)

Score: -1

Sylvester Stallone

as Urdnot Wrex in Mass Effect The Movie (Live Action)

Score: +1

J.K. Simmons

as Steven Hackett in Mass Effect The Movie (Live Action)

Score: +1

Danielle Panabaker

as Ashley Williams in Mass Effect The Movie (Live Action)

Score: +1

Dakota Fanning

as Liara T'Soni in Mass Effect The Movie (Live Action)

Score: +3

Uma Thurman

as Matriarch Benezia in Mass Effect The Movie (Live Action)

Score: +2

Emma Thompson

as Karin Chakwas in Mass Effect The Movie (Live Action)

Score: +1

Kevin Spacey

as Donnel Udina in Mass Effect The Movie (Live Action)

Score: 0

Morgan Davis Foehl

as Writer in Mass Effect The Movie (Live Action)

Score: +1

Avi Arad

as Producer in Mass Effect The Movie (Live Action)

Score: 0

J.J. Abrams

as Director in Mass Effect The Movie (Live Action)

Score: 0

JoJo Siwa

as Judy Jetson in The Jetsons (Warner Bros. Pictures)

Score: +2

Owen Wilson

as Barney Rubble in The Flintstones

Score: +1

Jack Black

as Fred Flintstone in The Flintstones

Score: -1

J.K. Simmons

as Mr. Slate in The Flintstones

Score: +2

Bob Bergen

as Mac in The Jetsons (Live Action)

Score: +1

Zachary Quinto

as Referential Universal Digital Indexer in The Jetsons (Live Action)

Score: +1

Dan Aykroyd

as Henry Orbit in The Jetsons (Live Action)

Score: +2

Bill Murray

as Montague Jetson in The Jetsons (Live Action)

Score: +3

J.K. Simmons

as W.C. Cogswell in The Jetsons (Live Action)

Score: +2