Milly Alcock to play Supergirl in James Gunn's DC Universe

Milly Alcock , Is DC’s New ‘Supergirl’. Alcock, who is known for her role as Rhaenyra Targaryen in 'House of the Dragon,' . has been cast as Superman's cousin in 'Supergirl: Woman of Tomorrow.'. DC Studios Co-CEO James Gunn made the announcement on Instagram. . Milly is a fantastically talented young actor, and I’m incredibly excited about her being a part of the DCU, James Gunn, via Instagram. Yes, I first became aware of her in 'House of the Dragon' but I was blown away by her varied auditions and screen tests for #Supergirl, James Gunn, via Instagram. She embodies Kara as envisioned by @tomking_tk, @bilquis and Ana Nogueira, James Gunn, via Instagram. 'People' reports that other cast members include David Corenswet as Superman, Rachel Brosnahan as Lois Lane. 'People' reports that other cast members include David Corenswet as Superman, Rachel Brosnahan as Lois Lane. Nicholas Hoult as Lex Luthor, Skyler Gisondo as Jimmy Olsen. Nicholas Hoult as Lex Luthor, Skyler Gisondo as Jimmy Olsen. Nathan Fillion as Green Lantern and Isabela Merced as Hawkgirl. . Nathan Fillion as Green Lantern and Isabela Merced as Hawkgirl. . A director has yet to be named. Other actresses who previously played Supergirl include Helen Slater, Melissa Benoist and Sasha Calle. . Other actresses who previously played Supergirl include Helen Slater, Melissa Benoist and Sasha Calle. . Other actresses who previously played Supergirl include Helen Slater, Melissa Benoist and Sasha Calle.