Suggestions by @maxalford

Daniel Radcliffe

as Wolverine in X-Men

Andy Serkis

as Gorilla Grodd in DCU Flash

Carlos Valdes

as Vibe in DCU Flash

'Weird Al' Yankovic

as Rainbow Raider in DCU Flash

Jai Courtney

as Captain Boomerang in DCU Flash

Daniel Radcliffe

as Pied Piper in DCU Flash

Danielle Panabaker

as Killer Frost in DCU Flash

Mark Hamill

as The Trickster in DCU Flash

Jay Ryan

as Weather Wizard in DCU Flash

Tom Hardy

as Heat Wave in DCU Flash

Jamie Bell

as Captain Cold in DCU Flash

Haley Ramm

as Iris West-Allen in DCU Flash

Timothy Olyphant

as Golden Age Flash in DCU Flash

Kit Connor

as Kid Flash in DCU Flash

Sam Witwer

as Mirror Master in DCU Flash

Grant Gustin

as The Flash in DCU Flash

Wilson Bethel

as The Reverse-Flash in DCU Flash

Peter Capaldi

as The Thinker I in DCU Flash