Suggestions by @rockscar

Adam Driver

as Batman in World's Finest

Score: +1

Lewis Pullman

as Superman in World's Finest

Score: +1

Samara Weaving

as Black Canary in Justice League International

Score: +4

Alden Ehrenreich

as Blue Beetle in Justice League International

Score: +5

Chris Chalk

as The Martian Manhunter in Justice League International

Score: +4

Jake Gyllenhaal

as Batman in Justice League International

Score: +5

Jeremy Allen White

as Booster Gold in Justice League International

Score: +3

Wyatt Russell

as Green Lantern in Justice League International

Score: +3

Hannah John-Kamen

as Catwoman in Batman: Nocturnal of Gotham

Score: +1

D'Pharaoh Woon-A-Tai

as “A New Hero” in Batman: Nocturnal of Gotham

Score: +1

Bill Skarsgård

as “Why So Serious?” in Batman: Nocturnal of Gotham

Score: +1

Spoiler

as “Why So Serious?” in Batman: Nocturnal of Gotham

Score: +2

Spoiler

as “A New Hero” in Batman: Nocturnal of Gotham

Score: +2

Carla Gugino

as Martha Wayne in Batman: Nocturnal of Gotham

Score: +1

Anson Mount

as Thomas Wayne in Batman: Nocturnal of Gotham

Score: +1

Charlie Bushnell

as Jason Todd in Batman: Nocturnal of Gotham

Score: +1

Michael Cudlitz

as Harvey Bullock in Batman: Nocturnal of Gotham

Score: +1

Bobby Cannavale

as Salvatore Maroni in Batman: Nocturnal of Gotham

Score: +1

Jennifer Jason Leigh

as Dr. Leslie Thompkins in Batman: Nocturnal of Gotham

Score: +1

Sasha Calle

as Renee Montoya in Batman: Nocturnal of Gotham

Score: +1