After discovering the Secretary of the Navy was bugged during a confidential briefing, NSA Analyst Eleanor Bishop, who predicted the security breach in exact detail two years ago, partners with the NCIS team on the case.
- NSA Analyst Eleanor Bishop is introduced for the first time.
- This is the second episode to briefly feature the in-development Zumwalt-class destroyer. The first was in the Season 5 episode Stakeout (episode).
- Tony now has two gold fish. Since his first gold fish is named after Kate, it is reasonable to assume his second gold fish is called Ziva.
|Leroy Jethro Gibbs||Mark Harmon||Special Agent in charge of the Major Case Response Team, NCIS|
|Anthony DiNozzo||Michael Weatherly||Senior Special Agent, MCRT, NCIS|
|Timothy McGee||Sean Murray||Special Agent, MCRT, NCIS|
|Abigail Sciuto||Pauley Perrette||Chief Forensic Specialist,NCIS|
|James Palmer||Brian Dietzen||Assistant Medical Examiner.|
|Donald Mallard||David McCallum||Chief Medical Examiner, NCIS|
|Leon Vance||Rocky Carroll||Director of NCIS.|
|Sarah Porter||Leslie Hope||The new SecNav and Clayton Jarvis's replacement.|
|Eleanor Bishop||Emily Wickersham||NSA Analyst.|
|Ward Davis||Alan Ruck|
|Marc Attencio||Geoffrey Blake (actor)|
|Rudolph Stalin||Gideon Emery|
|Norma Hench||Nichelle Hines||NCIS Special Agent.|
|Chad Flynderling||Tim Peper||NSA Agent.|
|Thaddeus Nox||David Anthony Buglione||Bugger and posing as "Edward Gracey".|
|Library Patron||Grace Noble|