Suggestions by @alexstockwell1

Christopher Lambert

as Ra's al Ghul in DCEU

Score: +1

Evan Peters

as Victor Zsasz in DCEU

Score: +1

Daniel Craig

as Deathstroke in DCEU

Score: -1

Rami Malek

as Scarecrow in DCEU

Score: +1

Elizabeth Debicki

as Giganta in DCEU

Score: 0

Karen Gillan

as Poison Ivy in DCEU

Score: +2

Gemma Arterton

as Cheetah in DCEU

Score: -1

Bruce Greenwood

as Alan Scott in DCEU

Score: +3

Domhnall Gleeson

as Two-Face in DCEU

Score: 0

Willem Dafoe

as Hawkman in DCEU

Score: +1

Jack Dylan Grazer

as Kyle Rayner in DCEU

Score: +1

Milana Vayntrub

as Zatanna in DCEU

Score: +1

Aaron Paul

as Captain Cold in DCEU - New 52 Reboot

Score: +1

Daniel Craig

as Deathstroke in DCEU - New 52 Reboot

Score: +1

Jeffrey Dean Morgan

as Commissioner Gordon in DCEU - New 52 Reboot

Score: +1

Kiefer Sutherland

as Darkseid in DCEU - New 52 Reboot

Score: +1

Noomi Rapace

as Black Orchid in DCEU - New 52 Reboot

Score: +1

Arthur Darvill

as John Constantine in DCEU - New 52 Reboot

Score: +1

Milana Vayntrub

as Zatanna in DCEU - New 52 Reboot

Score: +1

Willem Dafoe

as Hawkman in DCEU - New 52 Reboot

Score: 0