Maria Elena Bello (born April 18, 1967) is an American actress and writer. Her film roles include Permanent Midnight (1998), Payback (1999), Coyote Ugly (2000), The Cooler (2003), A History of Violence (2005), The Mummy: Tomb of the Dragon Emperor (2008), Grown Ups (2010), Prisoners (2013), and Lights Out (2016). On television, Bello appeared as Dr. Anna Del Amico on the medical drama ER (1997–1998), with other starring roles including as Lucy Robbins on the series Touch in 2013, as Michelle McBride on the first season of the series Goliath in 2016, and from 2017 to 2021 as Special Agent Jacqueline "Jack" Sloane on the series NCIS.
The Guardian named her one of the best actors never to have received an Academy Award nomination.