Suggestions by @nilren

Elle Fanning

as Gwen Stacy in The Spectacular Spider-Man 2

Score: +1

Hafþór Júlíus Björnsson

as Aleksei Sytsevich in The Spectacular Spider-Man 2

Score: +1

Samara Weaving

as Felicia Hardy in The Spectacular Spider-Man 2

Score: +1

Michael Shannon

as Norman Osborn in The Spectacular Spider-Man

Score: +1

Elle Fanning

as Gwen Stacy in The Spectacular Spider-Man

Score: +5

Rooney Mara

as Jean Grey in X Men MCU

Score: -4

Lily James

as Rogue in X Men MCU

Score: -2

Grant Gustin

as Milo in Atlantis: The Lost Empire

Score: +1

Vera Farmiga

as Hera in Greek Gods

Score: +1

Rebecca Ferguson

as Athena in Greek Gods

Score: +1

Gal Gadot

as Aphrodite in Greek Gods

Score: +2

Aiden Turner

as Sean Cassidy in Characters Not Yet in the MCU

Score: -1

Emma Watson

as Lorna Dane in Characters Not Yet in the MCU

Score: -1

Gary Oldman

as Erik Lehnsherr in Characters Not Yet in the MCU

Score: 0

Glenn Howerton

as Reed Richards in Characters Not Yet in the MCU

Score: -1

Lily James

as Marian Carlyle in Characters Not Yet in the MCU

Score: +2

Rooney Mara

as Jean Grey in Characters Not Yet in the MCU

Score: -6

Taissa Farmiga

as Raven in Fancast DC

Score: 0

Nikolaj Coster-Waldau

as Gladiator in MCU Starjammers

Score: +1

Glen Powell

as Alex Summers in MCU Starjammers

Score: +2