Suggestions by @bendf

Darren Barnet

as Robin in Teen Titans

Score: +1

Iñaki Godoy

as Jacob Grayson in Batman Beyond: Future’s End

Score: +1

Keegan-Michael Key

as Joker in Batman Beyond: Future’s End

Score: +1

Evan Peters

as Michael Costner in Batman Beyond: Future’s End

Score: +1

Tati Gabrielle

as Inque in Batman Beyond: Future’s End

Score: +1

Chelsea Clark

as Dana Tan in Batman Beyond: Future’s End

Score: +1

Kristen Bell

as Punchline in Batman Beyond: Future’s End

Score: +1

Jared Padalecki

as Hush in Batman Beyond: Future’s End

Score: +1

America Ferrera

as Commissioner Barbara Gordon in Batman Beyond: Future’s End

Score: +1

Harry Shum Jr.

as Mayor Dick Grayson in Batman Beyond: Future’s End

Score: +1

Jodie Foster

as Kate Kane in Batman Beyond: Future’s End

Score: +1

Taika Waititi

as Joker in Batman Beyond: Future’s End

Score: -1

Ryan Potter

as Batman in Batman Beyond: Future’s End

Score: +1

Melissa Barrera

as Laurel Lance in Green Arrow: Here There Be Dragons

Score: -1

Melissa Barrera

as Black Canary in Green Arrow: Knight Takes Queen

Score: 0

Melissa Barrera

as Black Canary in Justice League: United

Score: +1

Melissa Barrera

as Black Canary in Green Arrow: Emerald Outlaw

Score: -1

Zoey Deutch

as Lois Lane in Superman: Heart of Steel

Score: +2

Martins Imhangbe

as Steel in Superman: Heart of Steel

Score: +3

Josh Rivera

as Superman in Superman: Heart of Steel

Score: -1