| Episode | Credits | Transcript |
Descent is the twenty-fourth and final episode of NCIS: Los Angeles Season Four as well as the 96th episode of the entire series.
Synopsis[]
Callen and Kensi head overseas and Sam and his wife go undercover when an explosion reignites the search for stolen nuclear weapons.
Cast[]
Main Characters[]
| Name | Portrayed by | Occupation |
|---|---|---|
| G. Callen | Chris O'Donnell | Special Agent-in-Charge, NCIS:OSP |
| Kensi Blye | Daniela Ruah | Special Agent, NCIS:OSP |
| Sam Hanna | LL Cool J | Special Agent, NCIS:OSP |
| Henrietta Lange | Linda Hunt | Operations Manager, NCIS:OSP |
| Eric Beale | Barrett Foa | Tech Operator NCIS: OSP |
| Marty Deeks | Eric Christian Olsen | LAPD Liaison to NCIS: OSP |
| Nell Jones | Renée Felice Smith | Intelligence Analyst, NCIS: OSP |
Recurring Characters[]
| Name | Portrayed by | Occupation |
|---|---|---|
| Owen Granger | Miguel Ferrer | Assistant Director of NCIS |
| Michelle Hanna | Aunjanue Ellis | Sam's Wife, aka "Quinn" |
| Isaak Sidorov | Timothy V. Murphy | |
| Marcel Janvier | Christopher Lambert | Arms Dealer and Identity Thief |
| Naseem Vaziri | Alon Aboutboul |
Guest Characters[]
| Name | Portrayed by | Notes |
|---|---|---|
| Michael Zirov | Pasha Lychnikoff | |
| Rodrigo Tamariz | Marco Rodriguez | Professor |
| Mikhail Andros | Massi Furlan | |
| Veronica Pisconov | Natasha Alam | |
| Maya Yerzov | Kym Jackson | |
| Bank Manager | Zylan Brooks | |
| Iranian Guard | Fahim Fazli | |
| Geology Student | Gabriel Luna |
Detailed Summary[]
Major Events[]
Trivia[]
| v - e - d NCIS: LA Season Four |
|---|
| Endgame ● Recruit ● The Fifth Man ● Dead Body Politic ● Out of the Past ● Rude Awakenings ● Skin Deep ● Collateral ● The Gold Standard ● Free Ride ● Drive ● Paper Soldiers ● The Chosen One ● Kill House ● History ● Lokhay ● Wanted ● Red: Part One ● Red: Part Two ● Purity ● Resurrection ● Raven and The Swans ● Parley ● Descent |