"Kern allegedly engineered the exit of Zoe McLellan, an original cast member who did not return for the third season, because, in his view, men didn't find her 'f***able,'" multiple sources explained to Variety in 2017.

Following the shocking allegations against Kern, McLellan remained silent, and "NCIS: New Orleans" went on without her. Vanessa Ferlito joined the series as FBI agent Tammy Gregorio, who was brought to the agency to investigate what had happened between McLellan's character and the mole who tricked her.

In addition to the claims of sexual harassment against Kern, it was also noted by TVLine that McLellan potentially quit her role on "NCIS: New Orleans" to pursue other career opportunities, including a role she landed as a series regular on the second and final season of "Designated Survivor."

Unfortunately, because McLellan has remained silent, we don't really know why she truly left "NCIS: NOLA."