Suggestions by @jonathankent

Vanessa Kirby

as The Cheetah in Wonder Woman : Humanity's Hope

Score: +1

Varun Tej

as Arjuna in Mahabharatha

Score: +1

Robin Atkin Downes

as Doomsday in Villains of DC

Score: +2

Benedict Cumberbatch

as Brainiac in Villains of DC

Score: +2

Sophie Turner

as Poison Ivy in Poison Ivy

Score: -3

Sophie Turner

as Lois Lane in Superman: Legacy

Score: +1

Amber Heard

as Y'Mera Xebella Challa in Legends of Atlantis

Score: 0

Djimon Hounsou

as Jurok Byss in Legends of Atlantis

Score: +1

Daniel Henney

as Garth in Legends of Atlantis

Score: +1

Jessica Matten

as Tula in Legends of Atlantis

Score: +2

Saniya Iyyappan

as Solstice in Earth-46: AspieCrow's DC Universe

Score: +1

Nurettin Sönmez

as Vandal Savage in Dc's Villains

Score: +6

Oscar Isaac

as Scot Free in The New Gods

Score: +2

Morgan Freeman

as W'Kabi in Black Panther

Score: +1

Booboo Stewart

as T'Challa in Black Panther

Score: -2

Djimon Hounsou

as Zuri in Black Panther

Score: +1

Anna Diop

as Shuri in Black Panther

Score: +1

Kristofer Hivju

as M'Baku in Black Panther

Score: +1

Mason Alexander Park

as Everett Ross in Black Panther

Score: +1

Bobo Stewart

as T'Challa in Black Panther

Score: -3