PASADENA, Calif. – Mark Harmon has seen the star power of Austin Stowell, who will play a younger version of his beloved character Leroy Jethro Gibbs on "NCIS: Origins." Harmon, an executive ...

Mark Harmon keeps finding surprising avenues for himself, as he is now a best-selling author — despite zero intention of ever becoming one.. The performer, who starred on CBS’ NCIS as lead ...

Mark Harmon on returning to NCIS world as producer of prequel "NCIS: Origins" 04:47 Mark Harmon, widely known for playing Special Agent Leroy Jethro Gibbs on the hit CBS drama "NCIS," is stepping ...

CBS announced today that it has renewed NCIS, the #1 television drama series in the U.S. and worldwide, for two more seasons, and that series star and executive producer Mark Harmon has signed a ...