[1] Special Agent Ziva David (Cote de Pablo), departs during the season with her final appearance being in "Past, Present and Future".

[4] It was announced on July 10, 2013, that Cote de Pablo, who plays Ziva David, had chosen not to return for the eleventh season as a regular.

[8] Diane Neal reprises her role CGIS Special Agent Abigail Borin in episode six "Oil & Water".

The second episode includes a character named Sarah Porter, played by Leslie Hope, who is the new Secretary of the Navy,[9] while Margo Harshman has been cast in a potentially recurring role as Timothy McGee's girlfriend, Delilah Fielding.

[10] The third episode introduces retiring NCIS Special Agent Vera Strickland (Roma Maffia) who has known Gibbs for many years.

Gibbs and the team continue the hunt for Benham Parsa and his growing terrorist ring while Tony heads to Israel to track down Ziva.