NCIS: What happened between Pauley Perrette and Mark Harmon?
### The Real Reason Pauley Perrette Left NCIS In its 20-year run, NCIS has seen numerous cast changes, but none were as shocking as Pauley Perrette’s departure in 2018 after 15 years playing the beloved Abby Sciuto. Initially, it seemed she left on good terms, but it was later revealed her exit stemmed from a…