Isabela Merced will play Hawkgirl in Superman: Legacy, a cast addition with major implications for the DC Universe’s future. Following the announcement that David Corenswet and Rachel Brosnahan would play Superman and Lois Lane, respectively, in the upcoming Superman reboot, three new Superman: Legacy actors have been announced. In addition to Isabela Merced as Hawkgirl, Superman: Legacy will also see Edi Gathegi as Mr. Terrific and Nathan Fillion as Green Lantern Guy Gardner. How big of a role these three DC heroes will have in Superman: Legacy is difficult to say, but Hawkgirl has an extensive – and confusing – lore in DC Comics.
https://screenrant.com/who-is-hawkgirl-powers-origin-dc-character-explained/