Mark Harmon left the series in season 19, but his character's life advice lives on years later Leroy Jethro Gibbs (Mark ...

Special Agent Gibbs lived by a set of rules that he collected throughout the years, which he followed 'to the letter' ...

Mark Harmon's beloved character Leroy Jethro Gibbs appeared in NCIS season 22, episode 19 in a storyline involving Timothy ...

NCIS fans have debated whether they prefer Leroy Gibbs or Alden Parker a few years after Mark Harmon left in season 19.

Mark Harmon's Special Agent Leroy Jethro Gibbs left NCIS in season 19, but his legacy - and his 91 rules - still live on.

Before taking on the role of Leroy Jethro Gibbs on NCIS, Mark Harmon starred in Worth Winning, a comedy that has not stood ...

It is under all this pressure that Gibbs appears in spirit in McGee's storyline. It is fitting that Gibbs would be referenced ...

Origins season 1 finale had a lot of shocking moments, but the worst was Mark Harmon's confession in the final moments of the episode. NCIS: Origins' first season finale was the result of months of ...

Mark Harmon was the dependable and iconic face of the NCIS franchise, particularly its flagship show. He portrayed Leroy ...

NCIS: ORIGINS has officially been renewed for Season 2, and many fans are wondering if Mark Harmon will return for the ...