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History is the 15th episode of NCIS: Los Angeles Season 4 as well as the 87th episode of the entire NCIS: Los Angeles series.

Synopsis

OSP investigate the death of a former member of a domestic terrorist group, the Gun Barrel Party, a group that in the 1970s was wanted for carrying out a string of bombings as well as domestic terrorism with the investigation growing intense when it's discovered that a supposedly dead member of the Gun Barrel Party may in fact still be alive and living under an alias in downtown Los Angeles.

Plot

Deeks in Ops.

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.
Sam Hanna LL Cool J A former Navy SEAL-turned-NCIS Special Agent with the Office of Special Projects.
Henrietta Lange Linda Hunt Operations Manager 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.
Kensi Blye Daniela Ruah NCIS Special Agent with the Office of Special Projects.
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.

Other Cast

Name Portrayed by Role
Oliver Johnson Richard Cox (actor) Member of the Gun Barrel Party who is using the alias "Roy Hale".
Jim Mullins Tim de Zarn Member of the Gun Barrel Party.
Leah Dewhurst Sylva Kelegian
David Thompson Jared Hillman Professor Roy Hale's TA or Teaching Assistant.
Alan Sanderson Hartley Sawyer Member of Red Tide.
Ellen Ciera Payton
Brad Ross Regan Burns
Jeff Landon Ashworth
  v - e - dNCIS: Los Angeles Season 4
Endgame (NCIS: Los Angeles episode)Recruit (episode)The Fifth Man (episode)Dead Body Politic (episode)Out of the Past (episode)Rude Awakenings (episode)Skin Deep (episode)Collateral (episode)The Gold Standard (episode)Free Ride (episode)Drive (episode)Paper Soldiers (episode)The Chosen One (episode)Kill House (episode)History (episode)Lokhay (episode)Wanted (episode)Red Part 1 (episode)Red Part 2 (episode)Purity (episode)Resurrection (episode)Raven and The Swans (episode)Parley (episode)Descent (episode)
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