“House of the Dragon ”Actress Milly Alcock Cast as Big-Screen Supergirl

“Milly is a fantastically talented young actor, and I’m incredibly excited about her being a part of the DCU," said DC Studios boss James Gunn

Milly Alcock, who plays Rhaenyra Targaryen in HBO’s Game of Thrones prequel series House of the Dragon, is set to star as Superman's cousin Kara Zor-El in Supergirl: Woman of Tomorrow.

DC Studios Co-CEO James Gunn, who is writing and directing Superman: Legacy, confirmed the news on Instagram.

Related: Henry Cavill Out as Superman, Gal Gadot's Wonder Woman on Hold: All About the DC Shakeups — So Far

“Milly is a fantastically talented young actor, and I’m incredibly excited about her being a part of the DCU," Gunn wrote on 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,” Gun continued. “She embodies Kara as envisioned by @tomking_tk, @bilquis and Ana Nogueira.”

Superman: Legacy stars David Corenswet as Superman. Nicholas Hoult as Lex Luthor, Rachel Brosnahan as Lois Lane, Nathan Fillion as Green Lantern, Isabela Merced as Hawkgirl, Edi Gathegi as Mister Terrific, María Gabriela de Faría as The Engineer, Anthony Carrigan as Metamorpho, Skyler Gisondo as Jimmy Olsen and Sara Sampaio as Eve Teschmacher.

Related: Everything to Know About 'Superman: Legacy'

Ana Nogueira is writing Woman of Tomorrow, and Warner Bros. is still searching for a director. The upcoming movie is inspired by Tom King and Bilquis Evely’s comic book series of the same name.

“Just when Supergirl thinks she’s had enough, everything changes. An alien girl seeks her out for a vicious mission. Her world has been destroyed, and the bad guys responsible are still out there. She wants revenge, and if Supergirl doesn’t help her, she’ll do it herself, whatever the cost. Now a Kryptonian, a dog, and an angry, heartbroken child head out into space on a journey that will shake them to their very core,” reads the official synopsis for King and Evely’s series.

Related: 'The Flash' Star Sasha Calle Says Henry Cavill Praised Her Supergirl Performance: 'That Meant the World'

“We will see the difference between Superman, who was sent to Earth and raised by loving parents from the time he was an infant, versus Supergirl, raised on a rock, a chip off of Krypton, and who watched everyone around her die and be killed in terrible ways for the first 14 years of her life and then come to Earth," Gunn said of the differences between Superman and Supergirl in a January 2023 presentation, reports The Hollywood Reporter.

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Helen Slater played Kara in the 1984 Supergirl film. Melissa Benoist portrayed the character on the CW series for six seasons from 2015 to 2021. More recently, Sasha Calle played a version of Supergirl in last year's The Flash.

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