Suggestions by @deppstepp

Billy Crudup

as Jay Garrick in The Flash: Run

Bryan Cranston

as Jay Garrick in The Flash: Run

Djimon Hounsou

as Russell Glosson in The Flash: Run

Gabriel Luna

as Albert Desmond in The Flash: Run

Charlie Day

as James Jesse in The Flash: Run

Colin Firth

as Henry Allen in The Flash: Run

Aidan Gillen

as Eobard Thawne in The Flash: Run

Billy Crudup

as Eobard Thawne in The Flash: Run

Ron Perlman

as Grodd in The Flash: Run

Iain De Caestecker

as Sam Scudder in The Flash: Run

Luke Evans

as Citizen Abra in The Flash: Run

Kit Harington

as Marco Mardon in The Flash: Run

Ryan Reynolds

as Roy G Bivolo in The Flash: Run

Rose McIver

as Lisa Snart in The Flash: Run

Jude Law

as Superman in Wolfgang Peterson Batman vs Superman (2004)

Colin Farrell

as Batman in Wolfgang Peterson Batman vs Superman (2004)

Dylan O'Brien

as Terry McGinnis in Batman: Beyond

Freddie Stroma

as Barry Allen in The Flash: Run

Josh Segarra

as August Heart in The Flash: Run

Rami Malek

as Leonard Snart in The Flash: Run