Suggestions by @ciclopexmen

Margot Kidder

as Felicia Hardy in Spider Man (1985)

Score: +1

Jim Carrey

as Loki in The Avengers

Score: +1

Vanessa Kirby

as Carol danvers in Marvel Avengers trilogys fancast

Score: 0

Blake Lively

as Carol danvers in Marvel Avengers trilogys fancast

Score: +2

Reese Witherspoon

as Carol danvers in Marvel Avengers trilogys fancast

Score: +2

Jim Carrey

as Loki in Marvel Avengers trilogys fancast

Score: 0

Gene Wilder

as Pennywise/IT in IT (1985)

Score: +1

Helen Slater

as Wanda Maximoff in Superheroes in the 1980s

Score: +1

Ben Kingsley

as Adrian Toomes in Superheroes in the 1980s

Score: +1

Helen Slater

as Susan Storm in Superheroes in the 1980s

Score: +1

Christopher Lloyd

as Otto Octavius in Superheroes in the 1980s

Score: +1

Robert Redford

as Eobard Thawne in Superheroes in the 1980s

Score: +1

Helen Slater

as Dinah Laurel Lance in Superheroes in the 1980s

Score: +1

Sharon Stone

as Felicia Hardy in Superheroes in the 1980s

Score: +1

Demi Moore

as Jennifer Walters in Superheroes in the 1980s

Score: +1

Phoebe Cates

as Kitty Pryde in Superheroes in the 1980s

Score: +1

Bill Murray

as Hank Pym in Superheroes in the 1980s

Score: +1

Tom Cruise

as Scott Summers in Superheroes in the 1980s

Score: +1

Helen Slater

as Jean Grey in Superheroes in the 1980s

Score: +1

Julianne Moore

as Jean Grey in Superheroes in the 1980s

Score: +1