“This sense of peace, I have not had this since Shannon and Kelly died.”

And while Gibbs is off the show now, the door is always open for him to return.

One such rookie on “NCIS” is actorBrian Dietzen, who plays Dr. Jimmy Palmer on the show.

Brian Dietzen posing

“One of the big, memorable days is my first scene here.

And I was hired to do one scene with David McCallum, one day.

And he and I played really, really well together,” Dietzen revealed (viaCheatSheet).

Brian Dietzen pals around with fellow actor Echo Kellum

“It was very, very fun.

And I remember thinking: this was really fun for my reel.