Praesidium is the 3rd episode of NCIS: Los Angeles Season 6 as well as the 123rd episode of the entire NCIS: Los Angeles series.
Synopsis
When one of Hetty's houses is attacked, resulting in the death of her bodyguard, OSP investigate while struggling to avoid the Department of Justice team while Hetty arrives in Washington D.C. and receives bad news.
Plot

Deeks in the Boatshed.
Major Events
- Nell kills someone in the line of duty for the first time.
Cast
Series Regulars
Name | Portrayed by | Role |
---|---|---|
G. Callen | Chris O'Donnell | NCIS Special Agent and the leader of the Office of Special Projects field team. |
Kensi Blye | Daniela Ruah | NCIS Special Agent with the Office of Special Projects. |
Marty Deeks | Eric Christian Olsen | A Detective with the Los Angeles Police Department and also the LAPD/NCIS liaison. |
Eric Beale | Barrett Foa | Tech Operator with the Office of Special Projects. |
Nell Jones | Renée Felice Smith | Tech Analyst for the Office of Special Projects. |
Owen Granger | Miguel Ferrer | NCIS Assistant Director. |
Henrietta Lange | Linda Hunt | Operations Manager with the Office of Special Projects. |
Sam Hanna | LL Cool J | A former Navy SEAL-turned-NCIS Special Agent with the Office of Special Projects. |
Recurring Cast
Name | Portrayed by | Role |
---|---|---|
Michael Thomas (Inelegant Heart) | John Heard (actor) | Special Congressional Investigator. |
Ava Wallace | Aisha Hinds | Chief Investigator for the Department of Justice. |
Matthew Ogilvie | Eddie Shin | |
Leon Vance | Rocky Carroll | NCIS Director. |
Ann Jones | Marybeth Massett | Congresswoman. |
Team Member | Amol Shah |
Guest Cast
Name | Portrayed by | Role |
---|---|---|
Craig Lennox | Jason Manuel Olazabal | |
Beckett | Cuyle Carvin | |
EMT (Praesidium) | Bianca Lopez | |
David Fletcher | Neil Fournier | |
Mystery Woman | Laura Hart |