"Bridgerton" is one of the most-watched productions on Netflix, and the upcoming fourth season is set to introduce fresh faces. Among them is an actor well-known to fans of the "Harry Potter" series.

Bridgerton will return to Netflix's catalog in about two years, but the most important details of the fourth season have already been revealed, including the new characters. Here, check out who has joined the series.

Bridgerton has finally found their Sophie, but fans can still expect season 4 to feature some major changes from the book. After Netflix confirmed on Wednesday, September 11, that Yerin Ha has been cast as Benedict's (Luke Thompson) love interest,

Benedict Bridgerton and Sophie Baek are stepping up to the plate as season four production kicks off on the beloved Regency-era hit.

Bridgerton season four will welcome Harry Potter alum Katie Leung as one of the key rivals to new leading lady Sophie Baek (Yerin Ha). Scottish actor Leung, 37, best known for her role as the titular wizard’s love interest, Ravenclaw witch Cho Chang in the blockbuster film franchise, will star as “twice-married and twice-widowed” Lady Araminta Gun.

"Bridgerton" Season 4, starring Yerin Ha as Sophie Baek, aka the Lady in Silver, and Luke Thompson as Benedict Bridgerton, is in production at Netflix.

But there’s a little change being made with the character plucked from the pages of author Julia Quinn’s novel An Offer From a Gentleman, which chronicles her and Benedict’s romance. The change comes in the form of a fresh last name, differing from the book’s iteration of Sophie Beckett.

The casting of Yerin Ha to play Sophie in Bridgerton season 4 helps more people visually identify with characters in the world they love A month after US entertainment site Variety leaked the news, Korean-Australian actress Yerin Ha was officially announced as the female lead for the next season of Netflix's hit Regency-period drama,