Mark Harmon is shedding a little light on going from being the lead on NCIS to working more behind the scenes on NCIS: Origins - and the Gibbs of it all. In Us Weekly's exclusive sneak peek at the Tuesday, May 5, episode of the "NCIS: Partners & Probies" podcast, Harmon, 74, details what it's like "exploring a character to with someone else portraying it" after passing the torch of Leroy Jethro Gibbs to Austin Stowell on NCIS: Origins. "I wait to be asked.