Suggestions by @user_964

Nikolaj Coster-Waldau

as Aragorn in The Lord Of The Rings Trilogy

Score: +5

Benedict Cumberbatch

as Gollum in The Lord Of The Rings Trilogy

Score: -3

Morgan Freeman

as Gandalf in The Lord Of The Rings Trilogy

Score: +6

Rupert Grint

as Samwise Gamgee in The Lord Of The Rings Trilogy

Score: -2

Daniel Radcliffe

as Frodo Baggins in The Lord Of The Rings Trilogy

Score: 0

Peter Dinklage

as Lord Farquaad in Shrek (Live Action)

Score: +20

Kevin Hart

as Donkey in Shrek (Live Action)

Score: +16

Kirsten Dunst

as Fiona in Shrek (Live Action)

Score: -1

Dave Bautista

as Shrek in Shrek (Live Action)

Score: 0

John Krasinski

as Kyle Reese in Terminator

Score: -1

Emily Blunt

as Sarah Connor in Terminator

Score: +3

Josh Brolin

as The Terminator in Terminator

Score: +1

Ezra Miller

as George Harrison in The Beatles

Score: -5

Freddie Highmore

as Paul McCartney in The Beatles

Score: +5

James Mangold

as Director in The Searchers

Score: +1

John Malkovich

as Mose Harper in The Searchers

Score: 0

Duane Howard

as Chief Cicatriz in The Searchers

Score: 0

Sadie Sink

as Debbie Edwards in The Searchers

Score: 0

Jeff Bridges

as Rev. Capt. Samuel Johnson Clayton in The Searchers

Score: +1