Suggestions by @penguin414

Ella Purnell

as Poison Ivy in Batman (DCU series)

Score: +1

Elijah Wood

as Mad Hatter in Batman (DCU series)

Score: +1

Christian Camargo

as Scarecrow in Batman (DCU series)

Score: +1

Giancarlo Esposito

as Lucius Fox in Batman (DCU series)

Score: +1

Oliver Jackson-Cohen

as Two-Face in Batman (DCU series)

Score: +2

David Tennant

as The Riddler in Batman (DCU series)

Score: 0

Danny Pudi

as The Riddler in Batman (DCU series)

Score: +1

Penn Badgley

as The Riddler in Batman (DCU series)

Score: +1

Andrew Garfield

as Riddler in Batman (DCU series)

Score: +1

Aidan Gallagher

as Red Robin in Batman (DCU series)

Score: +1

Drake Bell

as Red Robin in Batman (DCU series)

Score: +1

Jacob Elordi

as Red Hood in Batman (DCU series)

Score: +1

Javon Walton

as Red Hood in Batman (DCU series)

Score: +1

Hunter Doohan

as Red Hood in Batman (DCU series)

Score: +1

Marko Zaror

as Bane in Batman (DCU series)

Score: +2

Nicholas Cage

as Clayface in Batman (DCU series)

Score: +1

Mads Mikkelsen

as Mr. Freeze in Batman (DCU series)

Score: +1

Alfred Molina

as Penguin in Batman (DCU series)

Score: 0

Chandler Riggs

as Nightwing in Batman (DCU series)

Score: +1

Bill Skarsgård

as The Joker in Batman (DCU series)

Score: +2