Things You Didn't Know About NCIS' "Loose Cannons"

Neither Mark Harmon nor Jon Cryer are big chess players, but a quick refresher brought them up to speed.

Neither Mark Harmon nor Jon Cryer are big chess players, but a quick refresher brought them up to speed.

The symbolism of Gibbs' move of a white knight mattered most in the scene. 
Actor Walter Fauntleroy, who played the ill-fated Petty Officer Finn, had to overcome a bit of claustrophobia as he was moved in and out of the autopsy room's cadaver drawer.

Actor Walter Fauntleroy, who played the ill-fated Petty Officer Finn, had to overcome a bit of claustrophobia as he was moved in and out of the autopsy room's cadaver drawer.

Knowing that Laura San Giacomo would play Dr. Grace Confalone, NCIS Writer and Executive Producer Scott Williams modeled the character after her.

Knowing that Laura San Giacomo would play Dr. Grace Confalone, NCIS Writer and Executive Producer Scott Williams modeled the character after her.

The opening sequences set at a Naval Operational Support Center in Reston, Virginia, were actually filmed into the wee hours outside the tall fences surrounding L.A. County's Pitchess Detention Center.

The opening sequences set at a Naval Operational Support Center in Reston, Virginia, were actually filmed into the wee hours outside the tall fences surrounding L.A. County's Pitchess Detention Center.

Gibbs struck a pensive pose in this phoof.

Gibbs struck a pensive pose in this phoof.

DiNozzo eyed the camera in the second phoof.

DiNozzo eyed the camera in the second phoof.

Gibbs looked concerned in the third phoof.

Gibbs looked concerned in the third phoof.

Gibbs flashed the smile we all love in the final phoof of the episode.

Gibbs flashed the smile we all love in the final phoof of the episode.