Suggestions by @nirvana123

Cameron Monaghan

as Green Arrow in Green Arrow

Score: 0

Dakota Fanning

as Abby Arcane in Swamp Thing

Score: +1

Andy Serkis

as Swamp thing in Swamp Thing

Score: +1

CGI Monster

as Doomsday in Justice league

Score: +1

Bob Odenkirk

as Jim Gordon in Batman: Cold as Ice

Score: +1

Christian Serratos

as Catwoman in Batman: Cold as Ice

Score: +1

Maya Hawke

as Catwoman in Batman: Cold as Ice

Score: -1

Giancarlo Esposito

as Mr. Freeze in Batman: Cold as Ice

Score: +1

Tom Payne

as Batman in Batman: Cold as Ice

Score: +1

Aaron Paul

as Lex Luther in Superman 3: Brainiac Attacks

Score: +1

Scarlett Johansson

as Lois Lane in Superman 3: Brainiac Attacks

Score: +1

Benedict Cumberbatch

as Brainiac in Superman 3: Brainiac Attacks

Score: +1

Glen Powell

as Superman in Superman 3: Brainiac Attacks

Score: +1

Andrew Garfield

as Bobby Zirrozinski in Cyborg vol. 2

Score: +1

Denzel Washington

as Silas Stone in Cyborg vol. 2

Score: +1

Caleb McLaughlin

as Cyborg in Cyborg vol. 2

Score: +1

David Corenswet

as Superman in DCU

Score: +1

CGI Monster

as Starro in Justice League Days of the Future

Score: +1

Harrison Ford

as Old Batman in Justice League Days of the Future

Score: +1

Joe Anderson

as Old Green Lantern in Justice League Days of the Future

Score: +1