Suggestions by @khabib

Maiara Walsh

as Wonder Woman in Casting James Gunn's DCU! :D

Alexander Ludwig

as Aquaman in Casting James Gunn's DCU! :D

Lucas Till

as Flash in Casting James Gunn's DCU! :D

Trevante Rhodes

as John Stewart in Casting James Gunn's DCU! :D

James Marsden

as Hal Jordan in Casting James Gunn's DCU! :D

Willem Dafoe

as The Joker in Casting James Gunn's DCU! :D

Ethan Hawke

as Commissoner Gordon in Casting James Gunn's DCU! :D

Ralph Fiennes

as Alfred Pennyworth in Casting James Gunn's DCU! :D

Chris Pratt

as Booster Gold in Casting James Gunn's DCU! :D

Priyanka Chopra Jonas

as Talia al Ghul in Casting James Gunn's DCU! :D

Ghassan Massoud

as Ra's al Ghul in Casting James Gunn's DCU! :D

Virginia Gardner

as Supergirl in Casting James Gunn's DCU! :D

Lili Reinhart

as Supergirl in Casting James Gunn's DCU! :D

Zain Al Rafeea

as Damian Wayne (Robin) in Casting James Gunn's DCU! :D

Vera Farmiga

as Lara Lor-Van in Casting James Gunn's DCU! :D

Kurt Russell

as Jor-El in Casting James Gunn's DCU! :D

Ben Barnes

as Batman in Casting James Gunn's DCU! :D

Sara Sampaio

as Eve Teschmacher in Casting James Gunn's DCU! :D

Thomas Haden Church

as Jonathan Kent in Casting James Gunn's DCU! :D

Winona Ryder

as Martha Kent in Casting James Gunn's DCU! :D