Suggestions by @allday_fancast

Kristen Bell

as Harley Quinn in Batman

Neil Burger

as Writer in Batman

Quentin Tarantino

as Director in Batman

Liev Schreiber

as Harvey Dent in Batman

Matthew McConaughey

as Bruce Wayne in Batman

LaKeith Stanfield

as The Joker in Batman

Daniel Kaluuya

as Batman in Batman

Kaya Scodelario

as Cat woman in Batman

Colin Farrell

as Two face in Batman

Liev Schreiber

as Two face in Batman

Denzel Washington

as Commissioner Gordon in Batman

Jeff Bridges

as Commissioner Gordon in Batman

Bryan Cranston

as Commissioner Gordon in Batman

Robert Pattinson

as Batman in Batman

Chiwetel Ejiofor

as Alfred in Batman

Timothée Chalamet

as Batman in Batman

Emily Blunt

as Loki Laufeyson in Marvel Comics (Gender Swap)

Charlize Theron

as Tony Stark in Marvel Comics (Gender Swap)

Kate McKinnon

as Wade Wilson in Marvel Comics (Gender Swap)

Alison Brie

as Steve Rogers in Marvel Comics (Gender Swap)