Played by the talented Simone, fans will recognise "Kate" from Netflix’s Sex Education, where the actress has played the role of Olivia Hanan for three seasons.
She’s also had roles in British dramas like Broadchurch, Doctors and The Sister, though her upcoming role in Bridgerton is sure to be her biggest yet.
"With Bridgerton, it’s much more intense than Sex Education in the sense that if I’m not filming, I’m horse riding, training or in rehearsals. I’m in accent training or I’m in a fitting. It took some getting used to," the 26-year-old actress recently told Wonderland Magazine of the role.
So, who is this new leading lady and what is it about her that will make Anthony – and viewers – fall in love?
Part of a new family in the ton, Kate will catch Anthony’s eye early in the season. Though, he won’t make quite the same positive impression on her.
In a first-look teaser for the new episodes, Kate is seen scolding Anthony outside of a ball after hearing the Viscount rattle off a list of requirements for his dream woman. Big mistake, Anthony. HUGE.
"I take issue with any man who views women merely as chattels and breeding stock," she tells him in a fiery confrontation.
"When you manage to find this paragon of virtue, whatever makes you think she will accept your suit? Are the young ladies of London truly so easily won by a pleasing smile and absolutely nothing more."
"So you find my smile pleasing," Anthony asks, to which Kate rebuffs: "I find your opinion of yourself entirely too high."
Yes, girl! It’s all very Elizabeth and Mr. Darcy fighting in Pride and Prejudice, meaning we are officially hooked. Keen for a little more insight? Scroll through for a few spoilers for what we can expect, based on the novel.
WATCH: Anthony and Kate’s first meeting on Bridgerton
Fans of the books will know that Anthony initially sets his sights on Kate's younger sister Edwina (to be played by Charithra Chandran in the series).
After his first encounter with the Sharma sisters, the dashing rogue decides he's keen to marry Edwina. Which seems ideal, considering Edwina herself is also searching for a love match.
But when Kate decides Anthony is definitely not good enough to marry her beloved sister - see above for reasons A through to Z of how she came to that conclusion - he must jump through hoop after hoop to try and win the Sharma family over.
As an irritated Anthony works to overthrow Edwina's meddlesome sister Kate, he begins to find himself feeling something else entirely for her.
Bridgerton is coming to Netflix later this year, stay tuned for an official premiere date.