Suggestions by @elliswilliams

Mister Sinister

as Jason Momoa in Actors That Should Be In The MCU

Score: -3

Carnage (Cletus Kasady)

as Cameron Monaghan in Actors That Should Be In The MCU

Score: +2

Gambit (Marvel)

as Austin Butler in Actors That Should Be In The MCU

Score: +2

Wonder Man

as Yayha Abdul Mateen III in Actors That Should Be In The MCU

Score: +1

Venom (TABFE)

as Alexander Ludwig in Actors That Should Be In The MCU

Score: -2

Iceman (Bobby Drake)

as Rudy Pankow in Actors That Should Be In The MCU

Score: +1

Iron Fist (Danny Rand)

as Mackenyu in Actors That Should Be In The MCU

Score: +1

Doctor Octopus (Ultimate)

as Brendan Fraser in Actors That Should Be In The MCU

Score: 0

Sabretooth (Victor Creed)

as Pilo Asvaak in Actors That Should Be In The MCU

Score: +3

Ghost Rider (Howard Mackie)

as Ryan Gosling in Actors That Should Be In The MCU

Score: +1

Sue Storm (The Invisible Woman)

as Vanessa Kirby in Actors That Should Be In The MCU

Score: +2

Silver Surfer (Mike Allred)

as Rami Malek in Actors That Should Be In The MCU

Score: +2

Professor Charles Xavier

as Ralph Fiennes in Actors That Should Be In The MCU

Score: +1

Doctor Doom (Marvel Cinematic Universe)

as Nikolaj Costa Waldau in Actors That Should Be In The MCU

Score: +3

Magneto

as Jason Isaacs in Actors That Should Be In The MCU

Score: +2

Wolverine

as Milo Gibson in Actors That Should Be In The MCU

Score: +2

Despicable me 4

as Randall Park in Actors That Should Be In...

Score: +1

The Fast and The Furious

as Simu Liu in Actors That Should Be In...

Score: +1

Batman

as Jensen Ackles in Actors That Should Be In...

Score: +1

Deadpool 3

as Taron Egerton in Actors That Should Be In...

Score: +1