Milly Alcock
Milly Alcock in Miu Miu @millyalcock/Instagram

If Hollywood needed a new It girl with a little edge and a lot of style power, Milly Alcock might have just flown in to claim the title.

Fresh off her breakout role as Rhaenyra Targaryen in House of the Dragon, Alcock is now standing in an entirely different kind of spotlight as Kara Zor-El in Supergirl. This time, she is trading royal gowns for punk-rock rebellion in a cape.

While audiences are tuning in for the action, the internet is simultaneously taking notes on her style, which is just as super as her role as Kal-El's cousin.

Both her red carpet outfits and off-duty looks are making headlines, which is exactly why this Supergirl's rough-edged charm might just make her Hollywood's newest It girl.

Made from It Girl Material at the Academy Museum

At the 2025 Academy Museum Gala, Milly Alcock delivered a look that did not scream for attention, yet was impossible to ignore.

Dressed in a sheer black column gown with sculpted paneling and gold detailing running along the sides, Alcock donned a silhouette that elegantly elongated her frame. Doing the work of fashion deities, the subtle transparency introduced texture without tipping into excess.

The gold accents strategically broke the monochrome just enough to guide the eye, creating movement along an otherwise streamlined form. Paired with minimal styling and soft curls, the look avoided overcrowding the moment, allowing the construction of the dress to be the moment.

This is where Alcock's It girl potential becomes more fact than question. Also, can we just offer a standing ovation for the hood?

Legs for Weeks

In her GQ shoot, Alcock proves that black on black in black and white never goes out of style.

Dressed in a pared-back combination of a fitted leather jacket, sleek black bottoms, and sharply pointed heels, Alcock wears a silhouette that prioritises line and proportion over drama.

The monochrome palette makes an impact that rivals Supergirl's Kryptonian powerset. Black on black creates a clean visual field, letting texture do the talking. And what it says is that Alcock does not disappear into the outfit. She defines it.

Making a Marvellous Statement in Miu Miu

Milly Alcock just stepped out in Miu Miu looking like she inherited generational wealth and a very strong sense of self.

The black buttoned dress, the cinched waist, the cat-eye sunglasses, and the structured handbag are a lifestyle all their own. There's no denying that the classic ensemble is giving off-duty Audrey Hepburn energy. (Definitely something the original It girl would have in her closet!)

Milly Alcock is steadily taking the entertainment industry by storm as both Supergirl and that girl.

This Girl Is on Fire

Right now, all eyes are on the Supergirl premiere, however, rewind it back to 2022, and people were raving over this fiery dress Alcock wore to the House of the Dragon premiere.

Here, she unleashed her inner dragon in a molten, fire-lit ensemble. The liquid draping across the bodice catches the light like moving flame, creating a texture that feels alive. It is fluidity and strength at the same time, subtly representing the fierce characters Alcock portrays on screen.

What can we say? Dragons may breathe fire, but Milly Alcock breathes fashion.

Playful to the (Apple) Core

Here's the thing about It girls. They don't just wear couture. They also know when to throw it on pause and sit in the grass in denim overalls, eating snacks like nobody's watching; then proceed to post it on social media where everyone is watching.

Milly Alcock gets that, hence the Instagram post of herself playfully biting into an apple core.

In a look that swaps structured tailoring for laid-back denim, the actress leans fully into a playful, weekend aesthetic. The overalls paired with a graphic tee appear intentionally undone in the most unbothered way possible.

Because true It girl energy is not about always looking polished. More often than not, it's about range. There's always been (super)power in looking like you didn't try too hard.

Whatever 'it' may be, Milly Alcock definitely has It girl status written in her future.