Suggestions by @greybrand

Florence Pugh

as Poison Ivy in Justice League Unlimited

Score: +1

Finn Wolfhard

as The Flash II in Justice League Unlimited

Score: +2

Tom Holland

as The Flash II in Justice League Unlimited

Score: +1

Keith David

as Gorilla Grodd in Justice League Unlimited

Score: +1

Ron Perlman

as Gorilla Grodd in Justice League Unlimited

Score: +1

J.K. Simmons

as Comm’r. James Gordon in Justice League Unlimited

Score: +2

Hugh Dancy

as The Question in Justice League Unlimited

Score: +1

Michael C. Hall

as Reverse Flash in Justice League Unlimited

Score: +1

Jonny Lee Miller

as The Joker in Justice League Unlimited

Score: +1

Willem Dafoe

as The Joker in Justice League Unlimited

Score: +2

Aabria Iyengar

as Wannessa in A Court of Fey and Flowers

Score: +1

Milly Alcock

as Melanie in Batman Beyond

Score: +1

Lana Condor

as Dana Tan in Batman Beyond

Score: +1

Chloe Bailey

as Max Gibson in Batman Beyond

Score: +1

Eddie Griffin

as The Chief in Undercover Brother

Score: +1

Chris Kattan

as The Man in Undercover Brother

Score: +1

Stellan Skarsgård

as The Man in Undercover Brother

Score: +1

Anthony Michael Hall

as The Man in Undercover Brother

Score: +1

Alexander Skarsgård

as Mr. Feather in Undercover Brother

Score: +1

Billy Dee Williams

as General Boutwell in Undercover Brother

Score: +1