Olivia Cooke Drops Jaws in Sultry Black Dress at HBO Max UK & Ireland Launch Party

The launch party for HBO Max in the UK and Ireland brought out a huge crowd, but Olivia Cooke was one of the names everyone kept talking about. The event had a lively energy, full of big industry names, but she managed to stand out in a very natural way. There was something relaxed but still very polished about how she carried herself that night.

She showed up looking confident and completely in her element, especially considering her strong connection to the network through House of the Dragon. Many fans and media outlets covering the event pointed out how fitting it was to see her there, since the show helped push her even further into global fame.

Her outfit quickly became one of the highlights of the evening. She wore a black dress that felt bold without trying too hard. The top part of the dress fit closely to her body, with a soft neckline that had a velvet-like texture. Around the waist, there was a round, padded detail that gave the look a unique shape and made it feel more structured.

Olivia Cooke attends the "HBO Max UK and Ireland" launch party. pic.twitter.com/sO9NkdFxJW

— 21 (@21metgala) March 25, 2026

The lower part of the dress was completely different. It opened into a fuller skirt made of layered fabric that moved easily as she walked. The material looked slightly sheer in places, catching the light in a subtle way. The mix of structure on top and flow at the bottom made the whole outfit feel balanced but still eye-catching.

She kept her accessories simple. Small silver earrings added just a bit of shine. Her hair was styled in loose waves with a middle part, and the dark color worked perfectly with the all-black outfit. Her makeup leaned more dramatic, with a smoky eye and glossy lips, giving the whole look a modern edge.

Her rise in the industry has been steady but impressive. She first gained attention in Bates Motel, and then reached a wider audience with roles in films like Me and Earl and the Dying Girl and Ready Player One, directed by Steven Spielberg.

These days, many people connect her most strongly with her role as Alicent Hightower. She has spoken openly in interviews about how intense the fan reactions can be. It is wild how you can’t predict which scenes people have the biggest reactions to, she said when talking about the show.

She also shared a bit about what’s coming next for her character. More trauma, more turmoil, more me looking panicked and sad, she said, hinting at what viewers can expect in future episodes. These comments come from her past press interviews while promoting the series.

Outside of fantasy drama, she has been exploring different kinds of roles. She recently appeared in the thriller The Girlfriend for Amazon Prime Video, acting alongside Robin Wright, who also directed parts of the series. She also had a role in Slow Horses, which fans still talk about, especially because her character left earlier than expected.

Looking ahead, reports from film industry sources say she has several projects lined up. These include the horror film Visitation, where she stars with Alfie Allen and Penelope Wilton. She is also connected to another horror project called Brides, continuing her move into darker stories.

Despite her growing fame, she has kept a very grounded attitude. In past interviews, she described her everyday self in a simple way. In life, I’m pretty low-key and quite non-descript, she said.

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