Mark Harmon holds Jethro Gibbs close ... Austin Stowell will portray a young Gibbs - a role once by Harmon's son, Sean Harmon, on seven episodes of "NCIS." For the prequel, Sean serves as an ...

Sean Harmon initially laid the groundwork for ‘NCIS Origins’, a series that will explore a much younger, troubled Leroy Jethro Gibbs. “I believe that very few people are actually ‘born ...

When NCIS needed someone to portray a young Leroy Jethro Gibbs, the show’s team didn’t need to look far to find the right ...

If you're among those curious why Sean didn't return, this is why Mark Harmon's son doesn't play young Gibbs on "NCIS: Origins." Read more: Messed Up Ways Main Characters Were Killed Off While ...

Mark Harmon was drawn to playing Gibbs on NCIS because of the character's name Leroy Jethro Gibbs. Leroy Jethro Gibbs is an integral part of NCIS's success due to his unique and memorable qualities.

The Mark Harmon from 'NCIS' is virtually unrecognizable as a dimwitted high school teacher in 'Summer School.' ...

Mark Harmon holds Jethro Gibbs close ... Austin Stowell will portray a young Gibbs — a role once by Harmon’s son, Sean Harmon, on seven episodes of “NCIS.” For the prequel, Sean serves ...