Suggestions by @justinmays

Benedict Cumberbatch

as Wadsworth in Clue (2023)

Diane Farr

as Liz Milton in The Beast Within

Nick Jonas

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

Shia LaBeouf

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

Gerard Butler

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

Finn Wolfhard

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

Mark Ruffalo

as Detective Kenny Patrick in The Beast Within

Vanessa Kirby

as Scarlett Pfeiffer in The Beast Within

Willem Dafoe

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

Vanessa Kirby

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

Jaden Smith

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

Myles Kennedy

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

Angela Gossow

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

Shia LaBeouf

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

Roman Reigns

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

Andrew Scott

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

Ludacris

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

Ansel Elgort

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

Seth Rollins

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

Jon Bernthal

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