Diane Neal is an American actress best known for her role as Casey Novak on Law & Order: Special Victims Unit which she played from 2003 to 2008, and 2011 to 2012. She's portrayed Special Agent Abigail Borin in the NCIS franchise since 2009. She's starred in NCIS since its seventh season and is a recurring guest star in NCIS: New Orleans.
She made a guest appearance as Kelly Blake in the CBS crime drama television series Blue Bloods in the Season 6 episode, "Hold Outs".