Finding an actor to play the younger version of Leroy Jethro Gibbs was the supreme "NCIS: Origins" challenge. Mark Harmon embodied the character for 19 seasons of the original "NCIS," America's ...
The story begins. It’s 1991 Camp Pendleton, Calif. and Leroy Jethro Gibbs (Austin Stowell) has left the Marines to join the fledgling NIS in the series prequel NCIS: Origins. Off camera ...