6 suggestions

Dafne Keen
as Chiquis in Cicatrix

Ezra Miller
as The Flash/ Barry Allen in DCEU Reboot

Joaquin Phoenix
as Joker in DCEU Reboot
Gal Gadot
as Wonder Woman/Diana Prince in DCEU Reboot

Henry Cavill
as Superman/ Clark Kent in DCEU Reboot
Robert Pattinson
as Batman/Bruce Wayne in DCEU Reboot