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 ...

Sean Harmon, the son of the renowned Mark Harmon, took on the role of young Gibbs in seven episodes between 2008 and 2020. However, when it came time to cast the young Gibbs for the new prequel ...

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 person. Sean Harmon – the son of Gibbs actor Mark Harmon – stepped ...

Mark Harmon and Pam Dawber have been married since ... Harmon and Dawber's older son, Sean, was born in 1988, while their younger son, Ty, was born in 1992. Both Sean and Ty have followed in ...

Mark Harmon's son, Sean Harmon, seemed like an obvious choice to play young Leroy Jethro Gibbs in NCIS: Origins, but they ...

MORE: Inside Mark Harmon's sweet bond with lookalike son Sean Harmon "I said ... or screenwriting for Ty. "I'm proud of our ...