Looking for the full Supergirl cast? The 2026 DC Studios film stars Milly Alcock as Kara Zor-El alongside Jason Momoa, David Corenswet, Matthias Schoenaerts, Emily Beecham, David Krumholtz and Eve Ridley. Directed by Craig Gillespie and produced by James Gunn, Supergirl arrives in theaters and IMAX on June 26, 2026, continuing the new interconnected DC Universe.
Here’s a complete guide to the Supergirl cast and the characters each actor plays.
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What is the Premise of ‘Supergirl’ (2026)?
After making her DC Universe debut in Superman, Kara Zor-El takes center stage in her first standalone film. Unlike her optimistic cousin, Superman, Kara was raised on the surviving fragment of Krypton known as Argo City, where she witnessed unimaginable loss before arriving on Earth.
To celebrate her 23rd birthday, Kara travels the galaxy with Krypto, partying on planets with red suns where her Kryptonian powers are weakened enough for her to experience life like everyone else. But her carefree adventure takes a violent turn when she crosses paths with Ruthye Marye Knoll, a young warrior seeking revenge against the space pirate Krem of the Yellow Hills. Together, they embark on a dangerous quest that forces Kara to confront the hero she’s destined to become.
Full Cast and Characters of ‘Supergirl’ (2026)
The Supergirl film expands the DC universe in ways never before seen on the big screen, not just with its anti-hero lead but also with a cast of characters that broadens the Kryptonian world and the planets across the galaxy.
Milly Alcock as Kara Zor-El / Supergirl
Milly Alcock plays Kara Zor-El, Superman’s cousin, but unlike Kal-El, she was raised on Argo City, a surviving fragment of Krypton, where she witnessed the deaths of everyone she knew. The trauma leaves her jaded, sarcastic and impulsive, nearly the complete opposite of her Earth-raised cousin.
She doesn’t feel like she belongs on Earth, so naturally, her thrill-seeking personality has her traveling the galaxy with her super-dog, Krypto, and partying on planets with red suns, where her Kryptonian powers are weakened enough for her to get drunk. Despite her rough edges, Kara’s reluctant sense of justice pulls her into the film’s central conflict when she agrees to help a young alien girl avenge her father’s death and save what’s left of her family.
You know Milly Alcock from House of the Dragon, Upright and Sirens.
Matthias Schoenaerts as Krem of the Yellow Hills
Krem of the Yellow Hills is the ruthless leader of the Brigands, a gang of space pirates and human traffickers whose murder of Ruthye Marye Knoll’s father sets the events of Supergirl in motion. A cunning and relentless villain, Krem is a master swordsman and archer who also wields powerful magic, making him one of the few foes capable of challenging Supergirl head-on.
You know Matthias Schoenaerts from Bullhead, Rust and Bone, Far from the Madding Crowd, The Danish Girl and Red Sparrow.
Eve Ridley as Ruthye Marye Knoll
Ruthye is an honor-bound warrior who seeks Supergirl’s help to hunt down Krem of the Yellow Hills after he murders her father. She does not share Kara’s jaded attitude and may act as a good influence on Kara, potentially pushing her to become the hero she didn’t know she was destined to be.
You know Eve Ridley from 3 Body Problem, The Witcher and Casualty.
David Krumholtz as Zor-El
Zor-El is Supergirl’s father and Superman’s uncle. A brilliant Kryptonian scientist, he is one of the few who believed Jor-El’s warnings that Krypton was doomed. He was the creator of the protective weather dome that allowed Argo City to survive the planet’s destruction, preserving its citizens on a fragment of Krypton that drifts through space.
You know David Krumholtz from The Santa Clause, 10 Things I Hate About You, Harold & Kumar Go to White Castle and Oppenheimer.
Emily Beecham as Alura In-Ze/ Alura Zor-El
Supergirl’s mother, Alura In-Ze, possesses a wide array of powers, including superhuman strength, stamina, speed, reflexes, enhanced vision, invulnerability, ice and wind breath, flight and vocal memory, to name just a few. She is supportive of her family and willing to make sacrifices to keep them safe — the largest being sending Kara to Earth in a rocket to protect her from Kryptonian radiation as Argo City became less habitable.
You know Emily Beecham from 1899, Into the Badlands and Daphne.
David Corenswet as Kal-El / Clark Kent / Superman
Kal-El, also known as Clark Kent, is Supergirl’s cousin and a fellow survivor from Krypton. Unlike Kara Zor-El, Kal-El was raised on Earth by human parents, eventually becoming the superhero known as Superman. He appears briefly in the Supergirl story as a figure concerned about Kara’s behavior who wants her to realize her true potential. He is a much more clean-cut and all-American version of Kara.
You know David Corenswet from Superman, The Politician and Pearl.
Jason Momoa as Lobo
Lobo is an alien from the planet Czarnia who works as an interstellar mercenary and bounty hunter. An anti-hero in his own right, Lobo will likely come to the aid of Supergirl and Ruthye as they track down Krem of the Yellow Hills.
You know Jason Momoa from Game of Thrones, Aquaman, Dune and Fast X.
Ferdinand Kingsley as Elias Knoll
Elias Knoll is Ruthye’s father, killed in cold blood by Krem of the Yellow Hills. His death sets Supergirl and Ruthye on their quest for vengeance across the galaxy.
You know Ferdinand Kingsley from Silo, Mank, The Sandman and Reacher.
Diarmaid Murtagh as Drom Baxton
Drom Braxton is the second lieutenant to Krem of the Yellow Hills, a pirate and trafficker who was born for war.
You know Diarmaid Murtagh from Vikings.
Previous Live-Action Supergirl Movies and TV Shows
The new Supergirl film directed by Craig Gillespie isn’t the only adaptation of this DC Comics hero.
‘Supergirl’ – TV Show (2015-2021)
Developed by Ali Adler, Greg Berlanti and Andrew Kreisberg, the Supergirl television series was the first modern adaptation of the Supergirl comics. Melissa Benoist starred as the Woman of Steel alongside Mehcad Brooks as Jimmy Olsen, with David Harewood as Martian Manhunter, Katie McGrath as Lena Luthor and Tyler Hoechlin as Superman among the series’ prominent cast.
‘Supergirl’ (1984)
The very first live-action cinematic feature for the Girl of Steel, starring Helen Slater as Kara Zor-El and Faye Dunaway as the villain Selena.
‘The Flash’ (2023)
Sasha Calle portrayed a variant of Supergirl in the DC Extended Universe (DCEU) film The Flash. This was her first big screen appearance in nearly 40 years and helped prompt the franchise reset.
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With Supergirl soaring into theaters on June 26, 2026, it’s the perfect time to revisit the stories that helped shape Kara Zor-El and the wider DC Universe.
As James Gunn and DC Films continue building a bold new era of interconnected superhero adventures, there’s never been a better opportunity to catch up on the heroes, villains and iconic moments that came before.
Stream fan favorites like Supergirl, Superman, The Flash and more with DIRECTV, then head to theaters to see the next chapter of the DC Universe unfold.
Frequently asked questions
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