Zoe Mclellan has left the series because she did not like the direction that her character was being taken.
First episode of Tammy Gregorio played by Vanessa Ferlito. Vanessa took over for Zoe McLellan who played Meredith Brody.
Derek Webster previously appeared in "This Just in from Baghdad," the 5th episode of the 10th season of JAG (1995), the parent series of the NCIS (2003) franchise. He played Captain Stanley Ellis.