"NCIS" Casts Nancy Travis as [Spoiler]’s Sister in Season 23 (Exclusive)
by Team TVLine
August 21, 2025


Nancy Travis (Last Man Standing, The Kominsky Method) has been cast as Navy Vice Admiral Harriet Parker, the sister of Gary Cole‘s Special Agent Alden Parker, TVLine has learned exclusively.

She will first appear in the two-part Season 23 premiere, beginning Tuesday, Oct. 14 at 8/7c, and will offer a glimpse into how Alden became the man he is today.

https://tvline.com/casting-news/ncis-nancy-travis-cast-alden-parker-sister-season-23-1235488269/

NCIS Season 23’s Introduction To Parker’s Sister Explained By Showrunner (https://screenrant.com/ncis-season-23-parker-sister-introduction-impact-showrunner-explained/)

NCIS showrunner Steven D. Binder explains season 23's introduction to Parker's sister, unpacking what their dynamic means for the show.