Suggestions by @jayminotjamie

Wolfgang Novogratz

as Superman / Kal-El in Superman: The Man of Tomorrow

Score: +2

Wes Bentley

as Batman in The Gotham City Sirens

Score: +1

David Wenham

as Clayface in The Gotham City Sirens

Score: +1

Crispin Glover

as The Joker in The Gotham City Sirens

Score: +1

Urassaya Sperbund

as Talia Al Ghul in The Gotham City Sirens

Score: +1

Adelaide Kane

as Zatanna Zatara in The Gotham City Sirens

Score: +1

Angourie Rice

as Holly Robinson in The Gotham City Sirens

Score: +1

Ana de Armas

as Catwoman in The Gotham City Sirens

Score: +1

Léa Seydoux

as Poison Ivy in The Gotham City Sirens

Score: +1

Amanda Seyfried

as Harley Quinn in The Gotham City Sirens

Score: +1

Kokoy de Santos

as Garfield Logan in DCEU Rebooted

Score: -2

Pierce Brosnan

as James Gordon in DCEU Rebooted

Score: +4

Christopher Drake

as Composer in Batman: Control the Shadows

Score: +1

Jeph Loeb

as Writer in Batman: Control the Shadows

Score: +1

Jay Oliva

as Director in Batman: Control the Shadows

Score: +1

Ana de Armas

as Catwoman in Batman: Control the Shadows

Score: 0

Lewis McGowan

as Robin in Batman: Control the Shadows

Score: +1

Luke Youngblood

as Batwing in Batman: Control the Shadows

Score: +1

Pierce Brosnan

as Commissioner James Gordon in Batman: Control the Shadows

Score: +1

Mark Duplass

as Edward Nygma in Batman: Control the Shadows

Score: +1