Family First is the 24th episode of episode of NCIS Season 13 and also the 306th episode of the entire NCIS series.
This episode also marks the final appearance of NCIS Special Agent Anthony DiNozzo played by Michael Weatherly.
In the aftermath of the attack on the David farmhouse that has resulted in the death of former NCIS Special Agent Ziva David, greatly devastating the NCIS team, they continue working alongside their counterparts in the FBI and MI6 as they all conduct an international manhunt for disgraced agent Trent Kort while Tony finds his life being turned upside down by an unexpected revelation.
- It's revealed that Ziva has been killed in the mortar attack on the David farmstead.
- Mossad Director Orli Elbaz later returns and reveals that prior to Ziva leaving NCIS, that she and Tony had a child together, a little girl named Talia.
- Fornell regains consciousness although it's revealed that he needs extensive therapy before he fully recovers.
- The NCIS team along with FBI agent Tess Monroe later track down and subsequently kill disgraced CIA agent Trent Kort in a stand-off when Kort attempts to shoot MI6 officer Clayton Reeves.
- Tony later resigns from the NCIS team for good, giving up his position as Senior Field Agent of the team as he wants to devote his time to taking care of his daughter.
- With Tony's resignation, McGee is promoted to Senior Field Agent.
- This is the second season finale episode next to the Season 11 finale episode, Honor Thy Father (episode) not to end on a cliffhanger. This is also the second season finale episode next to the Season 3 finale episode, Hiatus Part 2 (episode) to have McGee promoted to Senior Special Agent due to one of the Major Case Response Team members' resignation (Leroy Jethro Gibbs in the latter case).
|Leroy Jethro Gibbs||Mark Harmon||Special Agent in charge of the NCIS Major Case Response Team.|
|Anthony DiNozzo||Michael Weatherly||Senior Special Agent and second-in-command of the NCIS Major Case Response Team. Later resigns at the end of the episode to take care of his daughter, Tali.|
|Timothy McGee||Sean Murray||Special Agent of the NCIS Major Case Response Team.|
|Abigail Sciuto||Pauley Perrette||Chief Forensic Specialist for the NCIS Major Case Response Team.|
|James Palmer||Brian Dietzen||Assistant Medical Examiner for the NCIS Major Case Response Team.|
|Eleanor Bishop||Emily Wickersham||NCIS Probationary Agent.|
|Leon Vance||Rocky Carroll||Director of NCIS.|
|Donald Mallard||David McCallum||Chief Medical Examiner for the NCIS Major Case Response Team.|
|Anthony DiNozzo Senior||Robert Wagner||Tony's father.|
|Tobias Fornell||Joe Spano||An FBI agent, currently wounded from an attack by Kort.|
|Trent Kort||David Dayan Fisher||An agent with the CIA and the real killer who framed Jacob Scott.|
|Emily Fornell||Juliette Angelo||Tobias Fornell's daughter.|
|Jacob Scott||Vince Nappo||A disgraced British spy who was framed by Trent Kort.|
|Tess Monroe||Sarah Clarke||An agent with the FBI.|
|Clayton Reeves||Duane Henry||An officer with MI6.|
|Orli Elbaz||Marina Sirtis||The Director of Mossad.|
|Grace Confalone||Laura San Giacomo||A therapist.|
|Katrina Griffin||Mia Barron||A Doctor.|
|Ziva David||Cote de Pablo||A former NCIS Special Agent and Mossad Liaison Officer to NCIS who was killed in the mortar attack. Appears in the episode via archive footage and flashbacks. Uncredited role.|
|Harris Cobb||William Duffy||A head security officer.|
|Kohl||Yorgos Karamihos||An Interpol officer.|
|Einat Hadar||Salome Azizi||Israeli Correspondent with ZNN.|