Suggestions by @adams

Kirsten Dunst

as Sue Storm in New MCU(if included Spiderman and Venom)

Diana Silvers

as Kitty Pryde in New MCU(if included Spiderman and Venom)

Zac Efron

as Wolverine in New MCU(if included Spiderman and Venom)

Matt Ryan

as John Constantine in Justice League Dark

Rami Malek

as Doctor Fate in Justice League Dark

Tatiana Maslany

as Zatanna in Justice League Dark

Henry Golding

as Ash Ketchum in Pokemon II

James Marsden

as Hal Jordan in DC's Green Lantern Corps 2020

Viggo Mortensen

as Magneto in X.MEN & FANTASTIC.FOUR IN MARVEL STUDIOS : M.C.U.

Jeremy Allen White

as Pyro in X.MEN & FANTASTIC.FOUR IN MARVEL STUDIOS : M.C.U.

Natalie Dormer

as Mystique in X.MEN & FANTASTIC.FOUR IN MARVEL STUDIOS : M.C.U.

Sofia Boutella

as Mystique in X.MEN & FANTASTIC.FOUR IN MARVEL STUDIOS : M.C.U.

Elizabeth Gillies

as Rogue in X.MEN & FANTASTIC.FOUR IN MARVEL STUDIOS : M.C.U.

Timothée Chalamet

as Nightcrawler in X.MEN & FANTASTIC.FOUR IN MARVEL STUDIOS : M.C.U.

Brandon Flynn

as Iceman in X.MEN & FANTASTIC.FOUR IN MARVEL STUDIOS : M.C.U.

Shailene Woodley

as Jean Grey in X.MEN & FANTASTIC.FOUR IN MARVEL STUDIOS : M.C.U.

Dylan O'Brien

as Cyclops in X.MEN & FANTASTIC.FOUR IN MARVEL STUDIOS : M.C.U.

KiKi Layne

as Storm in X.MEN & FANTASTIC.FOUR IN MARVEL STUDIOS : M.C.U.

Josh Brolin

as Cable in X.MEN & FANTASTIC.FOUR IN MARVEL STUDIOS : M.C.U.

Zazie Beetz

as Domino in X.MEN & FANTASTIC.FOUR IN MARVEL STUDIOS : M.C.U.