If Michelle Fairley thought the Lannisters were tough adversaries, wait until she meets Jack Bauer.

Deadline reports the Game of Thrones actress has been cast on 24: Live Another Day, Fox's upcoming revival of the real-time thriller. Fairley will play Margot, a British national and the widow of a notorious terrorist. It's the same role that Judy Davis exited just last week, and arguably, an even more exciting casting choice.

24: Live Another Day, starring Kiefer Sutherland and a vast array of notable actors (including Stephen Fry and Yvonne Strahovski), premieres on May 5.