Milly Alcock Soars as Supergirl in DCU’s Woman of Tomorrow

Supergirl is set to undergo a bold transformation in Supergirl: Woman of Tomorrow, a major film in the rebooted DC Universe (DCU), featuring Milly Alcock in the titular role of Kara Zor-El. Known for her breakout performance as young Rhaenyra Targaryen in House of the Dragon, Alcock emerges from an intensive casting process to embody a more complex, battle-worn version of Supergirl.

This version of Supergirl marks a departure from previous portrayals. Raised in traumatic circumstances, Alcock’s Kara is shaped not by idyllic human upbringing, but by witnessing mass destruction and loss before arriving on Earth. Her journey is inspired by Supergirl: Woman of Tomorrow, the acclaimed comic miniseries by Tom King and Bilquis Evely.

DC Studios co-heads James Gunn and Peter Safran are steering the project toward darker, more emotionally resonant territory. Gunn has praised Alcock’s audition and screen tests, calling the casting one of the best decisions of his career.

Director Craig Gillespie (known for I, Tonya, Cruella) helms the film with writer Ana Nogueira adapting the comic story into screenplay form, shaping Kara’s darker emotional arc. Supporting Cast members include Matthias Schoenaerts, who plays the antagonist Krem of the Yellow Hills, Eve Ridley as Ruthye Marye Knoll and David Krumholtz and Emily Beecham play Kara’s Kryptonian parents, with Jason Momoa joining as Lobo.

The plot unfolds as Kara turns 21 and travels across the galaxy with her dog Krypto. After crossing paths with Ruthye, a young warrior seeking vengeance for her father’s murder and the devastation of her world, Kara is drawn into a “murderous quest for revenge.” The film is set for release in June 2026, in the United States, as part of Chapter One: Gods & Monsters of the new DCU lineup.

Supergirl has long been an emblem of hope, strength, and legacy in the DC canon. What makes Woman of Tomorrow especially significant is its willingness to explore Kara’s vulnerabilities — how survival, loss, and cosmic scale shape her moral compass. This version promises not only super-powers and adventure, but emotional weight and consequences, differentiating her from her cousin Superman and many prior adaptations.

The casting of Milly Alcock is central to this shift. Her previous work displayed both resilience and nuance, qualities that DC leadership saw as essential for a Supergirl who has more scars than sunshine. Gunn has repeatedly stated that she was a top choice right from the early in the casting process.

What Fans Can Look Forward To:

• A Supergirl who challenges traditional superhero tropes, especially emotional innocence
• Cinematic visuals that mix cosmic spectacle with grounded, personal drama
• Supporting characters, including Ruthye Marye Knoll and Lobo, suggest the film will have both epic battles and moral ambiguity.
• A story that connects to Superman’s world, but stakes out Kara’s own identity and path.

As Supergirl: Woman of Tomorrow gears up for its summer 2026 premiere, audiences are getting ready for a heroine reimagined: tough, haunted, hopeful, cosmic. Milly Alcock’s Kara Zor-El isn’t just Supergirl, she’s a Supergirl shaped by survival, on a mission defined by justice and destiny.