Krista Kennell / Shutterstock.com

Rose Leslie is going from Westeros to the courtroom. Today, CBS announced the Game of Thrones star has joined the upcoming Good Wife spin-off.

The new series will feature Diane Lockhart (Christine Baranski) and Lucca Quinn (Cush Jumbo) and “center around an enormous financial scam that has destroyed the reputation of a young lawyer, while simultaneously wiping out her mentor Diane Lockhart’s savings.”

Leslie will play the young lawyer, Maia, who joins a new law firm with Lucca Quinn alongside Diane Lockhart as part of the fallout of this financial scam. While still officially untitled, there have been rumors that the spin-off is titled The Greater Good.

CBS has not yet confirmed this news, but they have set a premiere date for the spin-off in February 2017.

Read more details below:

LOS ANGELES – Oct. 12, 2016 – Rose Leslie, star of “Game of Thrones,” has joined the cast of the new edition of “The Good Wife” on CBS All Access, the CBS Television Network’s subscription video on-demand and live streaming service. Leslie will play Maia, Diane’s goddaughter who joins her firm just after passing the bar, and is a key part of Diane’s plan for the future.

“We’re thrilled to have Rose on board,” said executive producers Robert and Michelle King. “We needed a young actress who could hold her own with Christine Baranski and Cush Jumbo, and Rose is perfect. She’s real, she’s strong and she can play comedy. If we designed an actress from the ground up, we couldn’t have done better.”

As previously announced, the new series will pick up one year after the events of the final broadcast episode of “The Good Wife.” In the series, an enormous financial scam has destroyed the reputation of a young lawyer, Maia (Rose Leslie), while simultaneously wiping out her mentor Diane Lockhart’s savings. Forced out of Lockhart & Lee, they join Lucca Quinn at one of Chicago’s pre-eminent law firms. Leslie joins Emmy Award winner Christine Baranski, who will reprise her role as Diane Lockhart, and fan favorites Cush Jumbo as Lucca Quinn and Sarah Steele as Marissa Gold.

Leslie is a Scottish actress perhaps best known for her roles as Gwen Dawson in the drama series “Downton Abbey,” and as Ygritte in the fantasy series “Game of Thrones.” Her additional television credits include the UK series “Luther” and “Utopia.”

Leslie’s film credits include “The Last Witch Hunter,” “Morgan” and “Sticky Notes,” among others.

The CBS All Access new edition of “The Good Wife” will debut in February 2017 with a special broadcast on the CBS Television Network, then move exclusively to CBS All Access.

Robert and Michelle King, creators and executive producers of “The Good Wife,” return as the showrunners and executive producers of the new series. Phil Alden Robinson co-wrote and will executive produce the premiere episode along with the Kings. Ridley Scott, David Zucker, Liz Glotzer, Brooke Kennedy and Alison Cross also serve as executive producers. The series is produced by CBS Television Studios in association with Scott Free Productions and King Size Productions. The series will be distributed worldwide by CBS Studios International.”

What do you think? Are you a fan of The Good Wife? Will you watch the spin-off?