Mark Harmon has opened up about casting Austin Stowell as the younger version of Leroy Jethro Gibbs in NCIS: Origins.

Even the "NCIS" origin story for Austin Stowell has a Cracker Jack opening. The impossibly rugged actor, 39, had tried to ...

Mark Harmon's colourful life and career explored. From his defining role as Leroy Jethro Gibbs in NCIS to his sweet love ...

Longtime NCIS star Mark Harmon's son Sean Harmon is not reprising his role as young Jethro Gibbs in the new prequel, and the ...

Mark Harmon has officially made his semi-return to the NCIS franchise with NCIS: Origins, a prequel series centering around ...

Mark Harmon has opened ... and stars Stowell as a young Gibbs at the beginning of his career as he learns the ropes during training camp. Harmon, who originated the character back in 2003, has ...

In the role of former NCIS lead Leroy Jethro Gibbs, Mark Harmon is a tough act to follow. But it seems he found a worthy ...

NCIS: ORIGINS premiered this week, and in honor of the show, stars Mark Harmon and Austin Stowell spoke to PEOPLE about their ...

Mark Harmon was at the heart of the NCIS universe and with the drama's return, fans are eager to know more about the veteran actor ...