Milly Alcock did not know that her version of Rhaenyra Targaryen on House Of The Dragon was kind of a big deal.

Milly Alcock is well on her way to stardom thanks to literally everyone talking about House of The Dragon these days. When she first landed the role to play the younger version of Princess Rhaenyra Targaryen, however, Alcock did not realise what a big deal her character would be on the show.

In an interview with The Hollywood Reporter, Alcock admitted that she was under the impression that her version of Rhaenyra would not get much screen time. In her mind, she would only have to play a few flashback scenes before stepping down and letting Emma D’Arcy take over for the rest of the season.

Imagine her surprise, then, when she realised that the younger version of Princess Rhaenyra Targaryen would be the most important character on the show in the first half of the season.

“I was surprised,” she told THR. “I was just really shocked.”

Alcock also went on to remark how those first few days of shooting in London were, especially after doing Australian television.

“It felt like that I had been literally picked up from Australia and someone had just dropped me in the middle of like the ocean with nothing around. I’d done Aussie television where our whole show’s budget is less than one episode [of Dragon]. I’d never been on a hundred-million-dollar set like that before.” she said.

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Speaking of how she got the role, Alcock recalled how she got the news while she visiting a friend, but couldn’t give it away.

“I got the call and I obviously couldn’t tell anyone and I just kind of like sank to the ground,” she said.

Alcock added that the first order of business, of course, was wine: “I asked my friend if he had any wine and I couldn’t really tell him why. He thought something really awful had happened. He was like: Someone’s sick, someone’s dead, something catastrophic has happened. I couldn’t tell anyone for so long.”

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Check out Milly Alcock speak to ET about House of The Dragon:

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