The 28-year-old has appeared in several critically-acclaimed shows and films.
HollywoodLife has rounded up what you need to know about Olivia.
Olivia Cooke and Rhys Ifans as Alicent and Otto Hightower. (HBO)
“Rhaenyra can just get away with anything, and it’s so fine,” Olivia continued.
“The king turns a complete blind eye, whereas Alicent has always had to walk this tightrope for her whole entire life.
She also starred as Becky Sharp in the 2018 limited series Vanity Fair.
Olivia transformed into a metal rocker for her role as Lou Berger.
Olivia was featured in One Direction’s 2012 “Autumn Term” tour video.