Suggestions by @johnhomer

David Tennant

as Riddler in DC Recast

Score: +2

Luke Evans

as Ocean Master in DC Recast

Score: +1

Lance Reddick

as Ma'alefa'ak in DC Recast

Score: +1

Lena Headey

as Cheetah in DC Recast

Score: +1

Benedict Cumberbatch

as Sinestro in DC Recast

Score: 0

Matthew McConaughey

as Reverse Flash in DC Recast

Score: +3

Willem Dafoe

as The Joker in DC Recast

Score: +4

Bryan Cranston

as Lex Luthor in DC Recast

Score: 0

Charlie Hunnam

as Aquaman in DC Recast

Score: +3

Rick Worthy

as Martian Manhunter in DC Recast

Score: 0

Nathan Fillion

as Green Lantern in DC Recast

Score: +2

Neil Patrick Harris

as The Flash in DC Recast

Score: +2

Bridget Regan

as Wonder Woman in DC Recast

Score: +1

Josh Brolin

as Batman in DC Recast

Score: +1

Karl Urban

as Batman in DC Recast

Score: 0

Matt Bomer

as Superman in DC Recast

Score: 0