ET's own Nancy O'Dell learns some "NCIS" set secrets, from what's really in those filing cabinets in Rocky Carroll's office to the touching mementos in Pauley Perrette's lab!
"One of my Make-A-Wish [Foundation] kids gave me this [gift], so I keep that here for her -- I keep, like, little things all over the place," says Pauley about the mementos that line her lab set. "Another make a wish girl drew that picture of Abby that sits behind my desk right here, [so I had it] framed."
A lot of the items in Rocky's office are actually fake, just filler, like old phone bills!
"These are all paid bills, by the way," jokes Rocky. "Every scene you're opening something – you're reading a transcript or you're reading something official from the president or from the department of the Navy – and sometimes you open it and it's an old script from, like, '90210.'"
Watch the video for more fun with "NCIS" stars Mark Harmon and Cote de Pablo.
On tonight's episode, "Kill Screen," the gruesome discovery of dismembered fingertips and extracted teeth belonging to a murdered marine sends the NCIS team on an investigation to track down the cold-blooded killer.
"NCIS" airs Tuesday nights at 8 p.m. ET/PT on CBS.
Watch ET for more "NCIS" excitement!