Sean Murray has been part of NCIS almost since the beginning, having debuted as Timothy McGee in the Season 1 episode “Sub Rosa.” By Season 2, the actor was promoted for recurring player to main cast ...

The long-running show has hit quite a few benchmarks.

The CBS procedural, now in its 23rd season, is marking its 500th episode tracking agents of the Naval Criminal Investigative Service. But the story of how the series became the world's most-watched TV ...