Suggestions by @dcuniversefanboy

Jesse Plemons

as Beast in Marvel Cinematic Universe (rebooted)

Score: +1

Damson Idris

as Black Panther in Marvel Cinematic Universe (rebooted)

Score: +1

Jack Quaid

as Morph in Marvel Cinematic Universe (rebooted)

Score: +1

Zac Efron

as Wolverine in Marvel Cinematic Universe (rebooted)

Score: 0

Sarah Schachner

as Composer in Westron

Score: +1

Bill Skarsgård

as Steve Buscemi in Celebrity Biopics fancast

Score: +1

Ben Miller

as Vril Dox in DCEU Rebooted

Score: 0

James Gunn

as Director in DC Superheroes & Villains (Live-Action)

Score: +1

Ben Miller

as Brainiac in DC Superheroes & Villains (Live-Action)

Score: +2

Joseph Quinn

as Heath Ledger in Celebrity Biopics fancast

Score: +1

Joe Keery

as The Flash in James Gunn's DCU

Score: +2

Joe Keery

as The Flash in James Gunn's DCU cinematic universe

Score: +1

Kyle Allen

as Barry Allen in DC Universe

Score: +1

Joe Keery

as Barry Allen in DC Universe

Score: +1

George MacKay

as The Flash in DC Universe

Score: +1

Tom Blyth

as The Flash in DC Universe

Score: +1

Harris Dickinson

as The Flash in DC Universe

Score: +1

Joe Keery

as Flash in James Gunn's DC Universe

Score: +1

Jeremy Allen White

as Firestorm in James Gunn’s Justice League

Score: +1

Jeremy Allen White

as Firestorm in Casting the entire DCU

Score: +1