Regardless of how extraordinary the accomplishment is, Pauley Perrette admitted that she's not surprised.
"The first time I read it I was like, 'Oh yeah, this is gonna be great,'" Pauley said. "I'm like the biggest NCIS fan. It's a great show. I watch the marathons. I'm a total NCIS addict."
In its ninth season, TV's number one prime-time drama has gone through an infinite amount of plot twists but it still has a few tricks up its sleeve.
"I think it's a really creative piece of writing by [showrunner] Gary Glasberg," Mark Harmon says of the 200th episode. "I think for people who follow the show that this'll be an episode that entertains in a lot of different ways. There'll be guest visits from many people who have passed through here over the last nine years."