Suggestions by @bashboy2000

Jordan Elsass

as Speed in Marvel (MCU)

Joshua Bassett

as Wiccan in Marvel (MCU)

Ronnie Paulley Jr

as The Human Tourch in Marvel Fantastic Four (2022)

Noah Schnapp

as Franklin Richards in Fantastic Four Recast

Joshua Bassett

as Wiccan in Marvel roles yet to be cast next phase

J.K. Simmons

as Cosmo The Spacedog in Marvel roles yet to be cast next phase

Chadwick Boseman

as Black Panther in Marvel roles yet to be cast next phase

Finn Jones

as Iron Fist in Marvel roles yet to be cast next phase

Rebecca Quin

as Bloodstone in Marvel roles yet to be cast next phase

Christian Bale

as Beta Ray Bill in Marvel roles yet to be cast next phase

Jaden Smith

as Spider Man (2) in Marvel roles yet to be cast next phase

Jabari Banks

as David Alleyne in MCU Young Avengers