Yerin Ha stars as this season’s heroine, Sophie, with her name slightly altered from the book from Beckett to Baek as a nod to the Australian actress’s Korean heritage. Sophie is a maid in her stepmother’s household, and she has two stepsisters, and she longs to go to the ball. She sneaks into the ball, and meets a handsome suitor. But what happens next isn’t quite a fairy tale. Though Bridgerton appears to be her big introduction to the world, Ha has a few sizable credits to date, including Dune: Prophecy and Paramount+’s TV adaptation of the video game Halo.