Suggestions by @ringothedrummer

Joseph Quinn

as The Flash in The Flash

Steve Carell

as Henry Allen in The Flash

James McAvoy

as Mirror Master in The Flash

Caleb Landry Jones

as “Green-Haired Inmate” in Batman

Spoiler

as “Green-Haired Inmate” in Batman

Harry Melling

as Alberto Falcone in Batman

Elizabeth Debicki

as Sofia Falcone in Batman

Rooney Mara

as Gilda Dent in Batman

Adam Driver

as Harvey Dent in Batman

Jon Bernthal

as Harvey Bullock in Batman

Aramis Knight

as Dick Grayson in Batman

Kenneth Branagh

as Alfred Pennyworth in Batman

Don Cheadle

as Jim Gordon in Batman

Steve Buscemi

as Carmine Falcone in Batman

Ethan Hawke

as The Scarecrow in Batman

Jodie Comer

as Vicki Vale in Batman

Oliver Jackson-Cohen

as Batman in Batman

Catherine Zeta-Jones

as Queen Hippolyta in Wonder Woman: Truth and Justice

Jennifer Holland

as Black Canary in Wonder Woman: Truth and Justice

Taron Egerton

as Green Lantern in Wonder Woman: Truth and Justice