The Girl of Steel is now a Woman of Tomorrow.
Deadline is reporting that Milly Alcock has been cast as Kara Zor-El, also known to DC Comics fans as Supergirl, in the upcoming film version of Tom King and Bilquis Evely's 2021 limited series Supergirl: Woman of Tomorrow.
According to the article, Alcock beat out CODA actress Emilia Jones and Meg Donnelly, who voiced Supergirl in the DC animated movies Legion of Super-Heroes and Justice League: Crisis on Infinite Earths Part One.
Alcock's Supergirl is expected by many to debut in James Gunn’s upcoming film Superman: Legacy, which is about to go before the cameras in Georgia, but Deadline claims that's not a certainty. At the very least, she'll appear in some DC-based project before starring in her solo feature, Supergirl: Woman of Tomorrow.
Supergirl: Woman of Tomorrow is an eight-issue miniseries that focuses on Kara Zor-El's quest through space, aided by Krypto, and is told from the perspective of Ruthye, a new character. Ruthye, an alien girl Kara meets along her journey, is looking for justice for her father's death.
Alcock, 23, is an Australian actress best known as the young Rhaenyra Targaryen in the HBO fantasy series House of the Dragon. In addition, she's appeared in episodes of the TV series Upright, The Gloaming, and Reckoning.
Created in 1959 by Otto Binder, Al Plastino and Curt Swan, Supergirl first appeared in Action Comics (vol.1) #252 as Kara Zor-El, the daughter of Jor-El's brother Zor-El and cousin to Superman. She was the last survivor of Argo City, which had survived the destruction of the planet Krypton until meteorites of Green Kryptonite penetrated Argo City's protective barrier. Sent to Earth by Zor-El to be raised by her cousin, Kara acquired powers similar to Superman and adopted the secret identity of Linda Lee, a young girl at Midvale Orphanage.
In the New 52 continuity, Kara's ship lands as part of a meteor shower in Smallville, Kansas, but burrows through the Earth and emerges in Siberia. Kara has no memory of the destruction of Krypton and believes herself to be dreaming. The military tracks her arrival, and a group of American soldiers in mechanized suits immediately attack her. Her powers start emerging as the fight goes on and terrify the surprised Kara. Superman arrives after she defeats the soldiers and tries to convince Kara that he is her cousin, but Kara, still believing that only three days have passed since she last saw baby Kal, accuses him of being an imposter and attacks him. Eventually, Kara accepts that Krypton has been destroyed and that Superman is indeed her grown-up cousin.
Alcock will be the fifth actress to portray the character in live action, after Sasha Calle in the 2023 film The Flash, Melissa Benoist on the CBS/CW TV series Supergirl, Laura Vandervoort on WB/CW series Smallville, and Helen Slater in the 1984 film Supergirl that was a spinoff from the Superman films starring Christopher Reeve. The character has also appeared a number of times in animation, including Superman: The Animated Series and Justice League Unlimited (voiced by Nicholle Tom), and the Super Best Friends Forever DC Nation animated shorts (voiced by Nicole Sullivan).
Superman: Legacy is currently scheduled to arrive in theaters on July 11, 2025.