Out of the Past is the 5th episode of NCIS: Los Angeles Season 4 as well as the 77th episode of the entire NCIS: Los Angeles series.
Synopsis
Sam receives a voice mail from a former colleague but things take an intense turn when Sam arrives at the house and discovers the man dead, having seemingly hung himself. Refusing to believe that the death is a suicide, Sam and the rest of the OSP team investigative and discover a possible threat to national security while Sam faces his past when a ruthless arms dealer arrives.
Plot

Sam after realizing Frank Turner left him a message.
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. |
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 |
---|---|---|
Amy Shuler | Kate Lacey-Kiley | Medical Examiner. |
Michelle Hanna | Aunjanue Ellis-Taylor | Sam Hanna’s wife. Non-speaking cameo. |
Guest Cast
Name | Portrayed by | Role |
---|---|---|
Megan Hendley | Abby Brammell | CIA agent. |
James Pierce | Glynn Turman | Robert Pierce's father. |
Robert Pierce | Keith Powell | James Pierce's son. |
Dog Trainer | Nick Celentano | Uncredited role. |