Suggestions by @noahharris

Robbie Amell

as Bruce Wayne in Batman: The Caped Crusader

Mark Hamill

as Joe Chill in The Dark Knight (Season One)

Peter Dinklage

as Oswald Cobblepot in The Dark Knight (Season One)

Sofia Carson

as Catwoman in The Dark Knight (Season One)

Sterling K. Brown

as James Gordon in The Dark Knight (Season One)

Dacre Montgomery

as Nightwing in Ultimate Justice League

Finn Wolfhard

as Tim Drake in Ultimate Justice League

Zac Efron

as Reverse Flash in Ultimate Justice League

Chiwetel Ejiofor

as Martian Manhunter/ J'onn J'onzz in Ultimate Justice League

Miles Teller

as Green Lantern in Ultimate Justice League

Brandon Routh

as Jor El in Ultimate Justice League

Matt Damon

as Two Face/ Harvey Dent in Ultimate Justice League

Rami Malek

as Lex Luthor in Ultimate Justice League

David Tennant

as Scarecrow/ Dr. Crane in Ultimate Justice League

Alexandra Daddario

as Lois Lane in Ultimate Justice League

Dove Cameron

as Supergirl in Ultimate Justice League

Zac Efron

as The Flash in Ultimate Justice League

Kaley Cuoco

as Harley Quinn in Batman family and villlains

David Tennant

as Scarecrow in Batman family and villlains

Ben Kingsley

as Ra's al Ghul in Batman family and villlains