Abby is impressed by Ducky's reference to the Led Zeppelin song "The Song Remains the Same". Zeppelin guitarist Jimmy Page got the idea to play his guitar with a violin bow, a technique perhaps most famously utilized in "Dazed and Confused", from David McCallum's father, David McCallum Sr..
This episode is the first appearance of Brian Dietzen in the role of Jimmy Palmer following the departure of the character of Gerald, Ducky's assistant medical examiner at the start of the series.
As of this episode, Tony is 32 years old.
After an absence of four episodes, the number of regularly occurring cast members increases by one, with the addition of actor Brian Dietzen. Mr. Deitzen will portray a Medical Examiner's (Ducky) assistant, Jimmy Palmer. This role was still active after the conclusion of season 17, in 2020.
McGee places a program on Gibbs' computer to scan the photos of students from British schools after Dr. Mallard remembered the terrorist, Ari, sometimes spoke with a British syntax. The doctor remembered this in "UnSEALeD (2004)".