Fall TV Preview

Hostages Scoop: Grimm Matriarch Replaces Scandal's Kate Burton as First Lady

Mary Elizabeth Mastrantonio HostagesGrimm‘s Lady in Black is moving into the White House.

Mary Elizabeth Mastrantonio is joining CBS’ new D.C.-set thriller Hostages as the FLOTUS, a role portrayed in the pilot by Scandal‘s Kate Burton, TVLine has learned.

Per sources, the plan is to re-shoot the two scenes in the premiere featuring Burton. Mastrantonio will also appear in the third episode (and likely beyond).

RELATED | Hostages: TVLine’s First Impression

This Jerry Bruckheimer-produced thriller stars Toni Collette as Dr. Ellen Sanders, a top-shelf surgeon who in 24 hours is due to cut open the President of the United States (Gossip Girl‘s James Naughton) — but first, she and her family are taken hostage by rogue FBI agent Duncan Carlisle (Dylan McDermott) and his savvy, sleek team of cohorts. The good doc’s horrible dilemma: Facilitate POTUS’ death during surgery, or kiss her loved ones goodbye.

RELATEDHostages: Limited Series or Actual Series?

Hostages premieres Monday, Sept. 23 at10/9c.