'House of the Dragon' star Milly Alcock lands Supergirl role in DC Universe
DC Films co-CEO James Gunn confirmed Alcock's casting in an Instagram post.
"Superman: Legacy" writer-director James Gunn has welcomed "House of the Dragon" actress Milly Alcock into his new superhero universe.
Alcock will play Kara Zor-El, the Man of Steel's cousin, in the forthcoming Warner Bros. feature "Supergirl: Woman of Tomorrow."
Gunn, who is also the co-CEO of DC Films, is reshaping the Warner Bros.-based DC Comics universe, which launches July 11, 2025 with "Superman: Legacy," which was written and will be directed by the "Guardians of the Galaxy" franchise writer-director himself.
On his Instagram Monday, Gunn said of Alcock, "Milly is a fantastically talented young actor, and I'm incredibly excited about her being a part of the DCU."
He added, "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."
Gunn said the Australian actress "embodies Kara" as envisioned by comic writers Tom King and Bilquis Evely, and actress/playwright Ana Nogueira, the latter of whom is writing the "World of Tomorrow" script.
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Alcock succeeds Sasha Calle in playing Kara, who appeared on the big screen in 2023's "The Flash."
Alcock shared a note on her casting on her Instagram account, writing, "So excited to be a part of the DC fam - thank you so much to @jamesgunn for trusting me with Kara / Supergirl 💙🥹💙."
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While Gunn didn't specify, he's previously said his DCU casting choices will appear across multiple projects, so it's possible Alcock will appear in some way in "Superman: Legacy," which begins filming this spring.