Now, NCIS will introduce us to yet another member of the REACT team in the form of Special Agent Jessica Knight, played by Katrina Law, who specializes in hostage negotiations and handles daily high-risk operations with skill and precision. She is described by Deadline as “Sharp, athletic and tough, she was raised by a single mother and had to fight for everything in life and is damn good at it. Fiercely tenacious and with a wry sense of humor, Jessica is married to a stay-at-home dad who is raising their infant son." Law will appear in the final two episodes of Season 18—May 18 and May 25—when members of an NCIS REACT Team are killed during an explosion, and Knight, the lone surviving member, helps crack the case using high-tech body armor. Launch the gallery for a look at photos from the May 18 “Blown Away” episode. Now that NCIS was picked up for its 19th season, Law, who was most recently seen as Quinn Lue in Hawaii Five-O, could potentially join the cast as a series regular. There is a spot open with the departure of Jack Sloane (Maria Bello). NCIS airs Tuesday nights at 8 p.m. ET/PT on CBS. Next, find out who Mark Harmon’s wife plays on NCIS.