She will be a recurring guest star on 24: Live Another Day portraying Margot, a British national and the widow of a notorious terrorist.
Earlier, the network said she would play a German arms dealer, but the character evolved since the role was conceived.
As previously announced, Kim Raver, William Devane and Mary Lynn Rajskub will reunite with star Kiefer Sutherland to reprise their 24 roles in the new edition, set in London, taking up Jack Bauer’s story four years after 24 ended.
This time there are only 12 episodes.
The series will screen in Australia on TEN next year.