Suggestions by @blakemcgowan

Regé-Jean Page

as Martian Manhunter in James Gunn's DC Cinematic Universe

Dev Patel

as John Constantine in James Gunn's DC Cinematic Universe

Tom Sturridge

as Norrin Radd in Fantastic Four

Tom Sturridge

as Norrin Radd in Marvel Cinematic Universe

Daniel Kaluuya

as Azrael in Batman Villain Fancast

Colin Farrell

as The Penguin in Batman Villain Fancast

Joel McHale

as Green Lantern (Guy Gardner) in James Gunn's DC Cinematic Universe

Rosario Dawson

as Big Barda in James Gunn's DC Cinematic Universe

Devon Bostick

as Jason Todd in DCEU Batman Villains

Dwayne Johnson

as Jonesy in Fortnite : The Movie

John Cryer

as Lex Luthor in Arrowverse

Brec Bassinger

as Courtney Whitmore in Arrowverse

Donald Glover

as Green Arrow in DCEU Rebooted

Clancy Brown

as Ben Grimm in Marvel Cinematic Universe

LeVar Burton

as Lucius Fox in Batman : The New Journey