“We used David’s hat — the hat that David used as Ducky, Adam has on in the show,” reveals Monreal. (You can see it in the photo up top.) “I believe his bag, too, and then it was just so special to go ...

Adam Campbell as Dr. Donald “Ducky” Mallard and Austin Stowell as Leroy Jethro Gibbs — 'NCIS: Origins' Season 2 Episode 3 "The Edge" - Greg Gayne/CBS The episode, titled “The Edge,” after one of ...

The episode, titled “The Edge,” after one of McCallum’s songs (which will be featured in the episode), airs on Tuesday, October 28. In it, Campbell’s Ducky comes as a liaison from D.C. headquarters — ...

The episode, titled “The Edge,” after one of McCallum’s songs (which will be featured in the episode), airs on Tuesday, October 28. In it, Campbell’s Ducky comes as a liaison from D.C. headquarters — ...

“Mark [Harmon] said to us, ‘I didn’t know you guys were doing that, and there was no greater way to honor David [McCallum] than to put his music [in], because David felt so passionate about his music, ...