The highly anticipated Supergirl: Woman of Tomorrow has unveiled its impressive cast lineup, with House of the Dragon star Milly Alcock leading the charge as Kara Zor-El. This DCU blockbuster promises to be a game-changer, featuring surprising cameos and A-list talent that’s got fans buzzing with excitement.
Table of Contents
Supergirl Complete Cast Breakdown
| Actor | Character | Notable Works |
|---|---|---|
| Milly Alcock | Kara Zor-El/Supergirl | House of the Dragon |
| Jason Momoa | Lobo | Aquaman, Game of Thrones |
| Matthias Schoenaerts | Krem of the Yellow Hills | Rust and Bone, The Danish Girl |
| Eve Ridley | Ruthye Marye Knoll | The Power, 3 Body Problem |
| David Krumholtz | Zor-El | The Santa Clauses, Numbers |
| Emily Beecham | Alura In-Ze | Little Joe, Into the Badlands |
| Alice Hewkin | Sklarian Raider | – |
Milly Alcock’s Supergirl Takes Flight
Milly Alcock, best known for playing Princess Rhaenyra Targaryen on HBO’s “Game of Thrones,” has been cast to play Supergirl in both Superman: Legacy and Supergirl: Woman of Tomorrow. The Australian actress has already made her DCU debut in Superman, giving fans their first glimpse of her iconic costume.
Formerly known as Supergirl: Woman of Tomorrow, and now simply as Supergirl, the upcoming movie will follow Kara Zor-El on a “murderous quest for revenge”, marking a darker, more mature take on the beloved character.
Jason Momoa’s Surprise Return as Lobo
The biggest casting surprise came when Jason Momoa was cast as Lobo in “Supergirl: Woman of Tomorrow.” After concluding his Aquaman journey, Momoa transitions to playing the notorious alien bounty hunter from Czarnia.
Momoa has long expressed his desire to play the role. In a 2022 text message shared by James Gunn, Momoa wrote: “F–king Lobo.” This casting fulfills a personal dream while giving fans an unexpected and exciting villain.
Production Updates and Release Timeline
While celebrating her 21st birthday, Kara Zor-El travels across the galaxy with her dog Krypto, during which she meets the young Ruthye Marye Knoll and goes on a “murderous quest for revenge”. This storyline adaptation of Tom King’s acclaimed comic series promises emotional depth and cosmic adventure.
Director Craig Gillespie (I, Tonya) is helming the project, bringing his unique storytelling perspective to the DC Universe. “Supergirl: Woman of Tomorrow” is slated to debut on June 26, 2026, making it the second film in James Gunn’s rebooted DCU.
What Makes This Supergirl Different
James Gunn has emphasized that this won’t be the typical Supergirl audiences expect. The film draws inspiration from Tom King’s mature comic run, featuring a hardened Kara who’s experienced the harsh realities of space.
The supporting cast adds layers of complexity, with Eve Ridley playing Ruthye Marye Knoll, the young woman who sets Kara’s revenge mission in motion. Matthias Schoenaerts brings gravitas as Krem of the Yellow Hills, while David Krumholtz and Emily Beecham portray Kara’s Kryptonian parents.
Behind-the-Scenes Insights
Production has been steadily progressing, with James Gunn, co-head of DC Studios, releasing behind-the-scenes photos of Milly Alcock from ‘Supergirl: Woman of Tomorrow’ throughout 2025. These glimpses show Alcock’s commitment to embodying the iconic character.
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Fan Excitement and Expectations
The casting choices have generated significant enthusiasm among comic book fans and general audiences alike. Alcock’s transition from fantasy princess to Kryptonian superhero showcases her versatility, while Momoa’s Lobo promises brutal, entertaining confrontations.
The film represents a crucial step in establishing the new DCU’s tone and direction. With its cosmic scope and revenge-driven narrative, Supergirl: Woman of Tomorrow aims to differentiate itself from previous superhero offerings.
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FAQs
Q1: Who is playing Supergirl in the new DCU movie?
A1: Milly Alcock, known for her role as Princess Rhaenyra Targaryen in House of the Dragon, is playing Kara Zor-El/Supergirl in Supergirl: Woman of Tomorrow. She already appeared in the Superman movie, marking her DCU debut.
Q2: What surprise cameo has been confirmed for Supergirl: Woman of Tomorrow?
A2: Jason Momoa will appear as Lobo, the alien bounty hunter from Czarnia. This casting was officially confirmed in December 2024, with Momoa transitioning from his previous Aquaman role to this new DCU character he’s long wanted to play.
