Suggestions by @theworldsbetween

Noah Schnapp

as Bruce Wayne in Joker

M. Night Shyamalan

as Director in Joker

Hildur Guðnadóttir

as Composer in Joker

Henry Jackman

as Composer in Joker

Ewan McGregor

as Thomas Wayne in Joker

Michael Douglas

as Murray Franklin in Joker

Brenton Thwaites

as Spider-Man in Alternate MCU

David Denman

as Ben Grimm in MCU Rewrite

B. J. Novak

as Beyonder in MCU Rewrite

Ewan McGregor

as Beyonder in MCU Rewrite

Ashley Greene

as Janet van Dyne in MCU Rewrite

Ryan Gosling

as Hank Pym in MCU Rewrite

Chris Pine

as Hank Pym in MCU Rewrite

Ken Watanabe

as The Mandrin in MCU Rewrite

Aaron Paul

as Maxwell Dillon in MCU Rewrite

Matt Bomer

as Arthur Parks in MCU Rewrite

Dave Bautista

as Crusher Creel in MCU Rewrite

Alice Eve

as Susan Storm in MCU Rewrite

Ryan Potter

as Amadeus Cho in MCU Rewrite

Kyle Chandler

as Nicholas Fury Sr. in MCU Rewrite