Suggestions by @khabib

Cory Gruter-Andrew

as Kid Flash in James Gunn’s DCU

Score: +1

Anthony Carrigan

as Metamorpho in James Gunn’s DCU

Score: +1

Kyle Chandler

as Hal Jordan in James Gunn’s DCU

Score: +1

Isabela Merced

as Hawkgirl in James Gunn’s DCU

Score: +1

Lucas Till

as The Flash in James Gunn’s DCU

Score: +3

RJ Cyler

as Static Shock in James Gunn’s DCU

Score: 0

Aaron Pierre

as Green Lantern in James Gunn’s DCU

Score: +1

Jessica Green

as Wonder Woman in James Gunn’s DCU

Score: +1

Betty Brant

as Webbverse in Marvel characters Allison Mack could have played

Score: +2

Reginald T. Dorsey

as Sunspot in X-Men Movie Series (1990's)

Score: +1

Lázaro Ramos

as Sunspot in X-Men Movie Series (1990's)

Score: +1

Josh Brolin

as Earth-2149B Thanos in (MCU) Avengers: Time Runs Out (2027)

Score: +1

James Marsden

as Cyclops in (MCU) Avengers: Time Runs Out (2027)

Score: +2