Throughout Mark Harmon ’s run on the first 19 seasons of NCIS, the show would occasionally throw out a Gibbs Rule. Those are ...

Along with the late David McCallum, Mark Harmon is arguably the actor who's most commonly associated with the "NCIS" ...

The actor who played Clayton Jarvis, Matt Craven, had one of the saddest exits NCIS viewers have ever seen on the show. So ...