Descent is the final episode in the fourth season of NCIS: Los Angeles, and the ninety-sixth in the series as a whole excluding the back door pilot episodes and any crossovers.


Callen and Kensi head overseas and Sam and his wife go undercover when an explosion reignites the search for stolen nuclear weapons.


Series RegularsEdit

Actor/Actress Character Role
Chris O'Donnell G. Callen Special Agent in Charge
LL Cool J Sam Hanna Senior Special Agent
Linda Hunt Henrietta Lange Operations Manager
Daniela Ruah Kensi Blye Junior Special Agent
Barrett Foa Eric Beale Tech Operator
Eric Christian Olsen Marty Deeks LAPD Liaison
Renée Felice Smith Nell Jones Intelligence Analyst, NCIS: OSP

Recurring CastEdit

Actor/Actress Character Role
Miguel Ferrer Owen Granger Assistant Director of NCIS
Aunjanue Ellis Michelle Hanna/Quinn Sam Hanna's wife
Timothy V. Murphy Isaak Sidorov
Christopher Lambert Marcel Jeanvier Arms Dealer and Master Identity Thief
Alon Moni Aboutboul Naseem Vaziri

Production NotesEdit

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