Jennifer Esposito joined NCIS in Season 14 as Alex Quinn but departed after just one season, prompting speculation that her exit was health-related due to her previous struggles with Celiac disease during her time on Blue Bloods.
Back then, CBS had put her on unpaid leave despite medical advice and allegedly prevented her from working elsewhere, a move Esposito criticized publicly. However, when leaving NCIS in 2017, she clarified on Twitter that her exit had nothing to do with illness and that she was never meant to stay long-term, describing her role as more of a temporary series regular. Since then, Esposito has continued a successful acting career with roles in projects like The Boys, Law & Order: SVU, Awkwafina Is Nora from Queens, and the horror film Mary alongside Gary Oldman.
