Brian Dietzen, David McCallum, Pauley Perrette, Mark Harmon, Sean Murray, Cote de Pablo, and Michael Weatherly attend CBS' "NCIS" celebration of their 200th episode on January 3, 2012 in Valencia, California.

Brian Dietzen, David McCallum, Pauley Perrette, Mark Harmon, Sean Murray, Cote de Pablo, and Michael Weatherly attend CBS' "NCIS" celebration of their 200th episode on January 3, 2012 in Valencia, California.