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Curtis will play Charlotte Ryan, a career woman and single mom who works for the Office of the Inspector General in the Defense Department. Described as strong and opinionated, Curtis' character will spar with Gibbs (Mark Harmon) and the team like never before.
"The role of Charlotte Ryan got even better when the enormously talented Jamie Lee Curtis agreed to join us," executive producer Gary Glasberg said. "Jamie's shoot-from-the-hip style embodies everything we want from Ryan — humor, heart, strength and a lot of fun. We couldn't be more excited she's here. And don't be surprised if there are sparks between Gibbs and Ryan. We're expecting some real chemistry."
Curtis' appearance will serve as a reunion between her and Harmon: The duo co-starred in the 2003 remake of Freaky Friday with Lindsay Lohan.
NCIS' ninth season premieres Tuesday, Sept. 20 at 8/7c on CBS.