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Ron Galella, Ltd./Ron Galella Collection via Getty Images, Netflix
Another formidable matriarch!
Polly Walker's Baroness Featherington is more than ambitious as she is willing to do anything to secure her family's place in society. Not only does she have all three daughters debut, but she also uses ward Marina Thompson to attempt a social climb.
As for the actress who plays Portia Featherington, she's starred in several films, including Enchanted April, Patriot Games, Sliver and Restoration. Polly also starred in HBO's Rome, a role that earned her a Golden Globe nomination.