
Olivia Kate Cooke (born 27 December 1993) is an English actress. She is best known for her role as Alicent Hightower in the fantasy drama television series House of the Dragon (2022–present). In television, she has starred as Emma Decody in the thriller Bates Motel (2013–2017), Becky Sharp in the period drama Vanity Fair(2018), and a spy in the thriller Slow Horses(2022).
In films, Cooke has starred in the horror film Ouija(2014), the comedy-drama film Me and Earl and the Dying Girl (2015), the thriller Thoroughbreds(2017), the science fiction film Ready Player One(2018), the comedy thriller Pixie (2020), and the drama Sound of Metal (2020).
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Alicent Hightower
Sidonie 'Sid' Baker
Emma Decody
Art3mis / Samantha
Cherry
Karla
Paige
Laine Morris
Lou
Loch Ness Monster (voice)
Haley Peterson
Lea DeLeon
Becky Sharp
Eleanor
Georgia Holden (voice)
Rachel Kushner
Emma
Pixie
Nancy Linnet
Dylan Dempsey
Amanda
Alicent Hightower
Jane Harper
Lizzie Cree
Sally Bishop
Meg Demoys
Ruby
Katie
Self - Narrator (voice)
Katya
Angie
Self
Self - Guest