Suggestions by @marley96

Steven Yeun

as Dick Grayson/ Nightwing in Nightwing the Animated Series

Score: 0

Kari Wahlgren

as Harleen Quinzel/Harley Quinn in Batman: The Caped Crusader

Score: +1

John Noble

as Doctor Hugo Strange in Batman: The Caped Crusader

Score: +1

Delroy Lindo

as Luicius Fox in Batman: The Caped Crusader

Score: +1

Fred Tatasciore

as Killer Croc in Batman: The Caped Crusader

Score: +1

Alan Tudyk

as Edward Nygma/ The Riddler in Batman: The Caped Crusader

Score: +1

Robert Englund

as Jonathan Crane/ Scarecrow in Batman: The Caped Crusader

Score: +1

Udo Kier

as The Mad Hatter in Batman: The Caped Crusader

Score: +1

John DiMaggio

as Harvey Bullock in Batman: The Caped Crusader

Score: +1

Zach Callison

as Tim Drake/ Robin in Batman: The Caped Crusader

Score: +1

Steven Yeun

as Dick Grayson/ Nightwing in Batman: The Caped Crusader

Score: +1

Nikki Cox

as Poison Ivy in Batman: The Caped Crusader

Score: +1

Alfred Molina

as Ra’s Al Ghul in Batman: The Caped Crusader

Score: +1

Jason Alexander

as Oswald Copplepot/ The Penguin in Batman: The Caped Crusader

Score: +1

Steven Ogg

as Joker in Batman: The Caped Crusader

Score: +1

Jason Isaacs

as Alfred Pennyworth in Batman: The Caped Crusader

Score: +1

Chris Meloni

as Harvey Dent/Two-Face in Batman: The Caped Crusader

Score: +1

Rosario Dawson

as Selina Kyle/Catwoman in Batman: The Caped Crusader

Score: 0

J.K. Simmons

as Commissioner Gordon in Batman: The Caped Crusader

Score: +1

Michael C. Hall

as Bruce Wayne/ Batman in Batman: The Caped Crusader

Score: +1