Suggestions by @aaronkime

Rick Moranis

as Dr. Mendel Stromm in Characters who have not appeared, but should appear, in the MCU

Peter Sarsgaard

as The Wizard in Characters who have not appeared, but should appear, in the MCU

Cameron Monaghan

as Molecule Man in Characters who have not appeared, but should appear, in the MCU

Shaquille O'Neal

as Jefferson Davis in Characters who have not appeared, but should appear, in the MCU

Denis Lawson

as Mastermind in Characters who have not appeared, but should appear, in the MCU

Timothée Chalamet

as Northstar in Characters who have not appeared, but should appear, in the MCU

Billy Eichner

as Spider-Ham in Characters who have not appeared, but should appear, in the MCU

Eileen Atkins

as Madame Web in Characters who have not appeared, but should appear, in the MCU

Patrick Dempsey

as Spider-Man Noir in Characters who have not appeared, but should appear, in the MCU

Will Yun Lee

as Morlun in Characters who have not appeared, but should appear, in the MCU

Tom Welling

as Man Mountain Marko in Characters who have not appeared, but should appear, in the MCU

Freddie Stroma

as Molten Man in Characters who have not appeared, but should appear, in the MCU

Keiko Kitagawa

as Lady Deathstrike in Characters who have not appeared, but should appear, in the MCU

Ralph Fiennes

as Sebastian Shaw in Characters who have not appeared, but should appear, in the MCU

Anthony Stewart Head

as Spencer Smythe in Characters who have not appeared, but should appear, in the MCU

Mark Rylance

as Puppet Master in Characters who have not appeared, but should appear, in the MCU

Russell Crowe

as Jack O'Lantern in Characters who have not appeared, but should appear, in the MCU

Jonno Davies

as Hammerhead in Characters who have not appeared, but should appear, in the MCU

Bill Nighy

as Annihilus in Characters who have not appeared, but should appear, in the MCU

Tom Hanks

as Magneto in Characters who have not appeared, but should appear, in the MCU