After 15 seasons on NCIS, Pauley Perrette announced today that she is leaving the CBS series at the end of this season.

As rumors of her status on the much-watched drama have swirled in recent weeks, the actor revealed the news on her Twitter feed:

A core cast member of the Mark Harmon-led ensemble since its 2003 debut, Perrette plays the resident forensic specialist Abby Sciuto on the series about agents of the Naval Criminal Investigative Service. News of the actor’s departure comes a week after NCIS kicked off its 15th season on September 26.

Perrette is the second original NCIS cast member to exit in the past two years. After 13 seasons on the show as Senior Special Agent Anthony DiNozzo, Michael Weatherly left the show from creators Donald Bellisario and Don McGill in 2016. Not straying far, the Weatherly-led Bull premiered on CBS on September 20 last year to strong ratingsBull unsurprisingly was back for a second season last week — right after NCIS came back for its latest season.