Jennifer Esposito is an American actress and author. She is known for her roles in the feature films Crash, Summer of Sam, Don't Say a Word, Taxi, and Welcome to Collinwood. She has also appeared in several television series, most notably The Looney Tunes Show, Spin City, Related, Samantha Who?, Blue Bloods, and Mistresses. From 2016 to 2017, she played Special Agent Alexandra Quinn on the CBS series NCIS. In 2019 her most recent movie was Mob Town, starring opposite David Arquette.