Suggestions by @mojomystique
6 suggestions

Cillian Murphy
as Julian Gregory Day in Batman| Arkham Origins
+1-0Score: +1

Amy Adams
as Amora in Characters who have not appeared, but should appear, in the MCU
+1-7Score: -6

Penn Badgley
as Mephisto in Characters who have not appeared, but should appear, in the MCU
+2-7Score: -5
Zachary Quinto
as Dr. Nathaniel Essex in Marvel Cinematic Universe
+7-2Score: +5

Daniel Day-Lewis
as Reed Richards in Marvel Cinematic Universe
+6-18Score: -12

Henry Cavill
as James 'Logan' Howlett/Wolverine in Marvel Studios' X-Men
+1-3Score: -2