Suggestions by @n_khnv

Robert Pattinson

as Eddard Stark in Game Of Thrones: Robert's Rebellion

+3-4Score: -1

Henry Cavill

as Union Jack in MCU Fan Casting

+2-2Score: 0

Steven Spielberg

as Director in Dune Trilogy (1990s)

+4-0Score: +4

Brad Pitt

as Duncan Idaho in Dune Trilogy (1990s)

+3-0Score: +3

Rose Leslie

as Jean Grey in Marvel Studios' X-Men

+3-9Score: -6

Liam Neeson

as Shaddam IV in Dune Part 2 (2023)

+5-8Score: -3