SUPERGIRL Star Milly Alcock On Suiting-Up For WOMAN OF TOMORROW Screen-Test: "I Thought I Was Going To Vomit"

SUPERGIRL Star Milly Alcock On Suiting-Up For WOMAN OF TOMORROW Screen-Test: "I Thought I Was Going To Vomit"

In a new interview, Supergirl: Woman of Tomorrow star Milly Alcock recalls the experience of screen-testing for the role and the "absolute fear" of finding out she'd landed the part...

By MarkCassidy - May 29, 2025 02:05 PM EST

Milly Alcock has been hesitant to disclose many details about her upcoming role as Kara Zor-El in Supergirl: Woman of Tomorrow while doing press for new Netflix series, Sirens, but the House of the Dragon alum was a little more forthcoming - about her experiences in the build-up to landing the part, at least - during an interview with Elle.com.

Alcock revealed that she suited-up as the Girl of Steel for her screen-test along with "another girl" (most likely Meg Donnelly), while recalling the "absolute fear" she felt upon learning that she'd be taking flight as our new big-screen Supergirl.

“I was kind of in disbelief. I was initially like, ‘What have I done?’” Alcock admits. “I then invited all my friends over to the house and we drank champagne.” 

“During a screen test, you’re in a room with all the other women [vying for the same part] and you’re all dressed as the character. [The studio] will get you lined up in the makeup truck and put the same makeup on you all and then test you on a stage. For Supergirl, it was myself and another girl. It was really scary; I thought I was going to vomit! But it’s just fear! That’s what happens! This job has been a journey of overcoming my own fear.”

We've only seen a couple of official behind-the-scenes production stills of Alcock, but set photos did reveal a blurry look at the actress in-costume. Kara is expected to debut in James Gunn's Superman to set up her solo movie.

Supergirl: Woman of Tomorrow will also star 3 Body Problem's Eve Ridley as Ruthye Mary Knolle and Matthias Schoenaerts (The Old Guard) as the villainous Krem of the Yellow Hills. More recently, Aquaman star Jason Momoa joined the cast as Lobo. Krypto the Superdog is also expected to play a major role in the story.

The latest casting additions were David Krumholtz and Emily Beecham as Kara's parents, Zor-El and Alura.

Warner Bros. announced that our new Girl of Steel will take flight on June 26, 2026.

This take on Kara Zor-El a said to be a "less earnest and more edgy version of the iconic superheroine" as Gunn looks to move away from "previous depictions of the Girl of Steel, particularly the long-running CBS/CW series fronted by Melissa Benoist."

According to a brief synopsis, this story will follow Kara as she "travels across the galaxy to celebrate her 21st birthday with Krypto the Superdog. Along the way, she meets a young woman named Ruthye and winds up on a murderous quest for revenge."

Gunn and Peter Safran announced the Supergirl reboot during their studio press day in January of last year, when the "Gods and Monsters" DCU slate was revealed. The project will be at least partially based on King’s acclaimed comic book series of the same name from 2022.

Said Gunn at the time, “In our series we see the difference between Superman who was sent to Earth and raised by loving parents from the time he was an infant, versus Supergirl who was raised on a rock, a chip off Krypton, and watched everyone around her die and be killed in terrible ways for the first 14 years of her life, and then came to Earth when she was a young girl. She’s much more hardcore, she’s not exactly the Supergirl we’re used to seeing.”

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xfactor
xfactor - 5/29/2025, 2:02 PM
I think she's going to crush it.
McMurdo
McMurdo - 5/29/2025, 2:05 PM
Couldn't have gone to a better young actor right now. She dominated in House of Dragon.....so much so that the internet all mourned losing her with the age up and time skip in that show. Looking forward to the first trailer.
Whoelsebutkevin
Whoelsebutkevin - 5/30/2025, 1:05 AM
@McMurdo - My thoughts exactly, she was very easy to watch in HotD.
MisterBones
MisterBones - 5/29/2025, 2:08 PM
Stellar casting
bobevanz
bobevanz - 5/29/2025, 2:17 PM
Perfect casting. So far the DCU is on point
JustAWaffle
JustAWaffle - 5/29/2025, 2:19 PM
The SG from the Flash movie was more attractive, but she might be a better actress.
SuperCat
SuperCat - 5/29/2025, 2:24 PM
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MotherGooseUPus
MotherGooseUPus - 5/29/2025, 3:09 PM
@SuperCat - HAHAHAHAHA i laughed WAYYY to hard at this one. well played sir
FrankenDad
FrankenDad - 5/29/2025, 2:25 PM
I imagine it went something like this:
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TheVisionary25
TheVisionary25 - 5/29/2025, 2:36 PM
I’m glad she got the role…

Given her role in HOTD , I think she has the right chops and edge for this version of Kara so can’t wait to see her performance!!.

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karazorel
karazorel - 5/29/2025, 4:33 PM
@TheVisionary25 - I believe she’ll rock as the Girl of Steel. All the other brilliant actresses who have portrayed Supergirl from live action and animated. Melissa Benoist, Sasha Calle and Nicole Sullivan all were amazing. Milly was fantastic in HOTD and she definitely has the grit for Supergirl.
SummersEssex
SummersEssex - 5/29/2025, 2:38 PM
I think she's going to do great. Very unexpected but high quality casting.
theFUZZ008
theFUZZ008 - 5/29/2025, 2:44 PM
She looks cute.
Forthas
Forthas - 5/29/2025, 2:54 PM
She is too small!
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