Dianne Wiest

Dianne Wiest has landed a guest-starring role on NBC's The Blacklist, TVGuide.com has confirmed.

As first reported by TVLine.com, the two-time Oscar winner will play the head of Amnesty United, an organization created to fight the death penalty.

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Wiest's casting was first announced by Blacklist star Megan Boone on Twitter. "Dianne Wiest is going to be on our show!" she wrote on Thursday.

The Blacklist returns Monday, Feb. 24 at 10/9c on NBC. Wiest, whose TV credits include In Treatment and Law & Order, is slated to appear in the following episode.