Television News Pauley Perrette announces 'NCIS' departure after 15 seasons 10/04/2017 Pauley Perrette announced Wednesday on Twitter that she is departing "NCIS" following the conclusion of Season 15. Read More RELATED NEWS From Tokyo to Las Vegas: Taylor Swift's flight to Super Bowl LVIII'Chucky' Season 3 trailer released by USA Network and Syfy'Quantum Leap' Season 2 visits L.A. riots, Salem Witch Trials, and more TAGS: Pauley Perrette Maria Bello David McCallum Wilmer Valderrama Cote de Pablo Mark Harmon Michael Weatherly Sean Murray Duane Henry NCIS Bull