Gibbs' emphasis on rules is one of the most defining qualities about him, and NCIS: Origins might have just revealed the beginning of one of his most ignored ones. So far in the NCIS spinoff, Gibbs' rules have surrounded his team's cases.

There’s a reason that people who work together sometimes end up getting together. It’s that they understand each other. There’s a lot of Lala in Gibbs and vice versa that they see a bit of a mirror image.

The star tells The Hollywood Reporter how 'NCIS' helped lead him to co-author his second book, 'Ghosts of Panama,' while also balancing TV work and the upcoming 'Freaky Friday' sequel.