Suggestions by @evanrt0105

Ezra Miller

as Barry Allen in The Flash

Score: +1

Ezra Miller

as Broken Flash (Knightmare Timeline) in The Flash

Score: +1

Hero Fiennes Tiffin

as Johnny Quick in The Flash

Score: +1

Wayne Dalglish

as Rival in The Flash

Score: +1

Ben Affleck

as Batman in The Flash

Score: +1

Michael Keaton

as New Batman in The Flash

Score: +1

John Wesley Shipp

as Jay Garrick in The Flash

Score: +1

Sasha Calle

as Supergirl in The Flash

Score: +1

Sung Kang

as Future Flash in The Flash

Score: -1

Showtaro Morikubo

as Future Flash in The Flash

Score: -1

Adrien Brody

as Future Flash in The Flash

Score: -1

Miriam Shor

as Speed Force in The Flash

Score: +1

Alexander Skarsgård

as New Flash in The Flash

Score: -1

Austin Abrams

as New Flash in The Flash

Score: -1

Noah Schnapp

as Wally West in The Flash

Score: +1

Finn Wolfhard

as Wally West in The Flash

Score: -1

Isaak Presley

as Wally West in The Flash

Score: -1

Billy Crudup

as Henry Allen in The Flash

Score: +1

John Wesley Shipp

as Pollux in The Flash

Score: +1

Jack Whitehall

as Green lantern in The Titans

Score: +1