's storyline is set to jump ahead 10 years in Sunday's episode, a select group of young actors will be replaced by new age-appropriate performers.
Alicent Hightower, who has until now been played by 19-year-old Emily Carey, will now be portrayed by 28-year-old Olivia Cooke.
Cooke addressed the transition and what fans can expect from her character's growing rift with Princess Rhaenyra (formerly played by Milly Alcock, with Emma D'Arcy taking over this week) in an interview on Monday's . «I wish she was a bit more rubbish at her job so then I could go in and be like, 'Don't worry, guys.
I got this,'» Cooke joked about taking over her role from Carey. «But, no. Everyone's going to be devastated.» Cooke reveals that she was the actress to be cast first for the part, but that she and Carey didn't feel the need to collaborate on developing Alicent's mannerisms together. «I was like, I don't have any leg to stand on telling you how to do the role,» she says. «Also, imagine you at 18 — you feel so different.
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