Suggestions by @pyrosnickenson

Garrett Hedlund

as Green Arrow in Justice League: Unlimited (James Gunn DCU Movie)

Score: +2

Lucas Till

as The Flash in Justice League: Unlimited (James Gunn DCU Movie)

Score: +1

Melissanthi Mahut

as Wonder Woman in Justice League: Unlimited (James Gunn DCU Movie)

Score: +2

Mike Moh

as Merlyn in Green Arrow and Black Canary (James Gunn DCU Movie)

Score: +2

Igor Grabuzov

as Count Vertigo in Green Arrow and Black Canary (James Gunn DCU Movie)

Score: +2

Jodie Comer

as Black Canary in Green Arrow and Black Canary (James Gunn DCU Movie)

Score: -2

Garrett Hedlund

as Green Arrow in Green Arrow and Black Canary (James Gunn DCU Movie)

Score: +2

Jake Johnson

as Mick Rory in The Flash

Score: 0

Josh Lawson

as Captain Boomerang in The Flash

Score: +2

Sasha Calle

as Kara Zor-El in Actors Who Want to Play DC Characters

Score: +1

David Dastmalchian

as Solomon Grundy in Actors Who Want to Play DC Characters

Score: +1

David Dastmalchian

as Jervis Tetch in Actors Who Want to Play DC Characters

Score: +1

David Dastmalchian

as Krypto in Actors Who Want to Play DC Characters

Score: +1

David Dastmalchian

as Jonathan Crane in Actors Who Want to Play DC Characters

Score: +1

Ben Barnes

as Bruce Wayne in Actors Who Want to Play DC Characters

Score: +1

Ray Porter

as Darkseid in Actors Who Want to Play DC Characters

Score: +1

Michael Rosenbaum

as Lex Luthor in Actors Who Want to Play DC Characters

Score: +1

Ben Schwartz

as Eel O'Brian in Actors Who Want to Play DC Characters

Score: +1

Stephen Amell

as Oliver Queen in Actors Who Want to Play DC Characters

Score: -1

Neil Fanning

as Scoobert Doobert Doo in Actors Who Want to Play DC Characters

Score: +1