NCIS

In addition to Troian Bellisario, one of Donald P. Bellisario's children, who plays as McGee's sister, there is also one of his sons, Michael Bellisario, who played Charles (Chip) Sterling on the show.

The sound heard at the beginning and end of each act, when the scene goes to black and white is Donald P. Bellisario making that noise into a microphone. He wanted a unique way of bookending each act.

Producers have said that most of the personality and interests displayed by Abby come from Pauley Perrette just playing herself. She is graduated in Forensics before coming to 'NCIS'.