Suggestions by @1_doomed_1

John Krasinski

as The Atom in The Atom

Score: +1

Ronda Rousey

as Wonder Woman in The Flash

Score: +1

Ross Butler

as Captain Cold in The Flash

Score: +1

Daniel Kaluuya

as Heatwave in The Flash

Score: +1

Kevin Costner

as Henry Allen in The Flash

Score: +1

Willem Dafoe

as The Speed Reaper in The Flash

Score: +1

Johnny Depp

as Weather Wizard in The Flash

Score: +1

Yara Shahidi

as Iris West in The Flash

Score: +1

Jon Watts

as Director in The Flash

Score: +1

Dylan Sprayberry

as The Flash in The Flash

Score: +1

Richard Gere

as Jon Kent in Superman

Score: +1

Christopher Walken

as Brainiac 1 in Superman

Score: +1

Anne Hathaway

as Lois Lane in Superman

Score: +1

Anna Kendrick

as Lana Lang in Superman

Score: +1

Rita Moreno

as Maria Kent in Superman

Score: +1

Henry Cavill

as Superman in Superman

Score: +1

Rhys Ifans

as General Zod in Superman

Score: +1

Kevin Spacey

as Lex Luthor in Superman

Score: +1

Taika Waititi

as Director in Superman

Score: +1

Ralph Fiennes

as Mr. Freeze in Batman and Robin

Score: +1