'House of the Dragon': Olivia Cooke on Sitting in the Iron Throne

"Extra’s" Jenn Lahmers spoke to Olivia Cooke at the L.A. premiere of the "Game of Thrones" prequel "House of the Dragon." Olivia dished on her character Alicent Hightower, who marries her friend Rhaenyra Targaryen’s father Viserys, leading to a rivalry as the women fight over the Iron Throne.

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