NCIS: Origins just lost a key player, as the spin-off series' co-showrunner makes an abrupt exit from the production.

NCIS: Origins is getting a major shake-up behind the scenes — co-showrunner Gina Lucita Monreal is leaving the CBS series when Season 2 ends.

Though it wasn't impossible, "NCIS: Origins" just faced its most improbable mission yet: An impromptu set-visit from Tom Cruise. "While on the [Paramount] lot, Tom Cruise stopped by the set of NCIS: ...

Kate Todd's (Sasha Alexander) death on NCIS came as a real shock. Behind the scenes, on the other hand, Alexander's exit was perhaps less of a surprise.