Suggestions by @jasonadams1

Ryan Reynolds

as Freddy the Fence in Batman '00

Jennifer Aniston

as Pussycat in Batman '00

Ian McKellen

as The Sandman in Batman '00

Clint Eastwood

as Shame in Batman '00

Meryl Streep

as Marsha, Queen of Diamonds in Batman '00

Elton John

as Harry in Batman '00

Elton John

as Chandell in Batman '00

Doug Bradley

as Egghead in Batman '00

Gregory Peck

as Clock King in Batman '00

Olympia Dukakis

as Ma Parker in Batman '00

Bono

as The Minstrel in Batman '00

Alan Arkin

as The Archer in Batman '00

Michael Caine

as The Archer in Batman '00

Matthew Lillard

as The Bookworm in Batman '00

Dan Aykroyd

as King Tut in Batman '00

Brad Pitt

as False Face in Batman '00

Mark Hamill

as Mad Hatter in Batman '00

Nicole Kidman

as Zelda The Great in Batman '00

Patrick Stewart

as Mr. Freeze in Batman '00

Michelle Pfeiffer

as Catwoman in Batman '00