Suggestions by @sonictiger

Robert Pattinson

as Cade Jackson Walker in Mirrors

Noah Schnapp

as Cade Walker in Mirrors

Hans Zimmer & James Newton Howard

as Composer in The Justice League

Justin Lin

as Producer in The Justice League

George Miller

as Director in The Justice League

sonictiger

as Writer in The Justice League

Jonathan Majors

as John Stewart in The Justice League

Tom Holland

as Jimmy Olsen in The Justice League

Liam Neeson

as Vulko in The Justice League

Jeffrey Dean Morgan

as Slade Wilson in The Justice League

Willem Dafoe

as The Joker in The Justice League

Mahershala Ali

as Martian Manhunter in The Justice League

David Thewlis

as Desaad in The Justice League

Bradley Cooper

as Lex Luthor in The Justice League

Emilia Clarke

as Mera in The Justice League

Josh Brolin

as Darkseid in The Justice League

Michelle Pfeiffer

as Martha Kent in The Justice League

Emma Stone

as The Oracle in The Justice League

Daniel Day-Lewis

as Commissioner Gordon in The Justice League

Millie Bobby Brown

as Robin in The Justice League