Mark Harmon played his NCIS character Leory Gibbs in the prequel NCIS: Origins season 1 premiere, and he also narrates the series.

Mark Harmon decided to leave NCIS to keep his acting career "fresh". Gibbs was replaced by FBI agent Alden Parker in NCIS ...

L eroy Gibbs (Mark Harmon) may not be in charge anymore, but NCIS season 22 is still delivering shocking cases, dramatic ...

One character on 'NCIS' made the show what it is, Leroy Jethro Gibbs, but without 'The West Wing,' Gibbs might be a ...

On an ensemble show like NCIS, a main character's absence is felt for a long time, and that was definitely the casewhen Abby Sciutoleft. Pauley Perrette began playing the Goth forensic scientist when ...

Origins Season 1 Episode 16, created by Gina Lucita Monreal and David J. North. NCIS: Origins Cast: Austin Stowell, Kyle Schmid, Diany Rodriguez, Mariel Molino, Caleb Foote and Tyla Abercrumble ...

Origins Season 1 Episode 16, created by Gina Lucita Monreal and David J. North. NCIS: Origins Cast: Austin Stowell, Kyle Schmid, Diany Rodriguez, Mariel Molino, Caleb Foote and Tyla Abercrumble ...

Origins season 1, episode 15. NCIS: Origins has had a few plot holes so far, but the show's latest episode just fixed one of its biggest mysteries abou ...

Pauley Perrette's 'NCIS' exit sparked rumors of drama with Mark Harmon, yet Scott Wolf called him a total gem. The truth ...