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Carrie Mathison of “Homeland” had better watch out — the fictional arm of the CIA has a new maverick agent on the scene, and she doesn’t do “cry faces.”

“Oh, no!” laughs Yvonne Strahovski. The “24: Live Another Day” actress has never heard of Claire Danes’ famous emotive sobbing. Nor has she ever seen Showtime’s “Homeland,” the series to which her own adrenaline-pumping, terrorist-chasing franchise is often compared.

Strahovski, 31, says she plays her super-agent character, Kate Morgan, with a purposeful coldness and detachment. Morgan has been unwittingly married to a traitor, which she and the audience discover as the show opens. Strahovski delivers a star-making performance on the highly anticipated “24” reboot, which premieres May 5 on Fox and picks up four years after the original series ended its nine-year run in 2010 — with Jack Bauer (Kiefer Sutherland) living as a fugitive in London.

“You meet Kate at a point in her life when she’s feeling dejected and doesn’t have a lot to hold onto,” Strahovski says. “When Jack Bauer comes into the picture, and she has an opportunity to make things right and maybe prove herself, she jumps at it, and then turns into someone who’s hunting him in a way. It’s dark.”

Beyond that, Strahovski can’t reveal much more about the closely guarded plot.

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