Suggestions by @johndaley

Adam Scott

as Evan McCulloch in The Flash

Ron Perlman

as Gorilla Grodd in The Flash

Chloë Grace Moretz

as Lisa Snart in The Flash

Chosen Jacobs

as Wally West in The Flash

Sigourney Weaver

as Nora Allen in The Flash

Idris Elba

as Joe West in The Flash

John Wesley Shipp

as Henry Allen in The Flash

Kiersey Clemons

as Iris West in The Flash