Michelle Fairley will take over the villainous role Davis recently vacated in the Kiefer Sutherland-led update.

24: Live Another Day is getting a Game of Thrones upgrade.

Michelle Fairley is joining the cast of the 24 miniseries, replacing Judy Davis, who dropped out of the project for personal reasons, The Hollywood Reporter has learned.

Fairley will now play Margot, a British national and widow of a notorious terrorist, the same role Davis, who lives in Australia, was cast in.

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Kim Raver, William Devane and Mary Lynn Rajskub are reuniting with star Kiefer Sutherland. Tate Donovan, Yvonne Strahovski, Benjamin Bratt and Michael Wincott are among the new castmembers.

24: Live Another Day takes place in London and follows the further exploits of Jack Bauer (Sutherland), taking up his story four years after the events of 24's final season in 2010. The mini will continue with the series' signature real-time action for each episode.

Howard Gordon, Evan Katz, Manny Coto, David Fury, Robert Cochran, Brian Grazer, Jon Cassar and Sutherland are executive producers. Teakwood Lane Productions, 20th Century Fox TV and Imagine TV are the production companies. 24 was created by Joel Surnow and Cochran.

Fairley, best known as Catelyn Stark on Game of Thrones, also recurred on Suits. She is repped by Paradigm and Creative Artists Management in the U.K.

24: Live Another Day, which debuted a gritty teaser during Super Bowl Sunday, premieres with a two-hour launch May 5 at 8 p.m.

Email: Philiana.Ng@THR.com

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