The actress will replace Judy Davis, who dropped out of the project due to personal matters.
Michelle Fairly is joining the cast of the 24 miniseries and she will play the role of Margo, a British national and widow of a notorious terrorist as noted by The Hollywood Reporter.
24: Live Another Day takes place in London and it follows the further exploits of Jack Bauer (Kiefer Sutherland), taking up his story four years after the events of the 24’s final season in 2010.
Fairley, best known for her role as Catelyn on Games of Thrones, will star alongside Kim Raver, William Devane and Mary Lynn Rajskub. Among the new cast members of the miniseries there are names like Tate Donovan, Yvonne Strahovski, Benjamin Bratt and Michael Wincott.
The executive producers of the project are Howard Gordon, Evan Katz, Manny Coto,David Fury, Robert Cochran, Brian Grazer,Jon Cassar and Kiefer Sutherland.
24: Live Another Day is produced by Teakwood Lane Productions, 20th Century Fox TV and Imagine TV. The series created by Joel Surnow and Robert Cochran will premiere with a two-hour episode on May 5 at 8 p.m.