Martin "Marty" Deeks is an undercover Los Angeles Police Department Detective who is also the liaison between the Naval Criminal Investigative Service's Office of Special Projects Office and the LAPD. As such, Deeks is responsible for facilitating communications between both agencies, and coordinating joint operations involving LAPD components.
Marty, full name Martin Deeks, was born on January 8th, 1979 and is a native of California.
The OSP team first encountered Deeks in the Season 1 episode, Episode:Hand-to-Hand while he was undercover posing as a mixed martial artist named "Jason Wyler". He infiltrated a local gymnasium that served as front for a drug smuggling operation. The same gym was targeted by OSP who sought to investigate the gym after a Marine on leave from Iraq with connections to the gym was found murdered in an alleyway outside a night club. When Agent Sam Hanna infiltrated the group for OSP under the alias, "DeMarco Williams", he fought Detective Deeks and knocked him out.
During a subsequent encounter, both of them were taken into custody to preserve their covers. It was only after being released from the holding cells that he was revealed to be a Detective with the LAPD. Detective Deeks saved Agent Hanna's life after his cover was blown.
Deeks was later seen in a bar, drinking away his sorrows with a cup of coffee while still smarting from the tongue-lashing he had received from his boss. Hetty later arrived at the same place and after revealing that she too had suffered the same treatment from her boss, told Deeks that she had decided to create a liaison position between the LAPD and NCIS. Deeks was in disbelief at first but upon Hetty offering him the position, having told Deeks that he was the suitable candidate for the job, Deeks accepted.
Deeks joined the team in Episode:Fame to help them solve a case before leaving NCIS to go take part in a deep undercover operation despite the fact that some of the team including Sam Hanna who were hostile to him given that Deeks's predecessor, Agent Dominic Vail who was still missing had not returned to the team.
During a mission to save Kensi, with Hassad Al-Jahiri weakened by a gunshot from Callen, Deeks took the opportunity to finish Hassad which he did by dropping to the ground and then firing a single shot which killed Hassad instantly. Deeks then left the team to go on a deep undercover mission and was only mentioned once in the Season 1 episode, Episode:Burned.
In the Season 2 premiere episode, Episode:Human Traffic after his undercover mission went south, Deeks contacted Hetty for help and begged for her to assist in his mission which seemingly involved underage young girls. He officially became Kensi's partner and deceased Agent Dominic Vail's replacement in the next episode, "Black Widow", resulting in him joining the team permanently albeit as a liaison officer.
When Deeks is shot in "Personal", he is asked to provide a list of possible suspects. He includes a man named Gordon John Brandel as one of them, and it is later revealed that Brandel is his father: a man who frequently abused Deeks as a child until Deeks shot him (non-fatally) when he was 11 years old. Hetty asks Nell to find Brandel, and she discovers that he died in an auto accident in 1998 after being released from prison. (This, however, contradicts statements made in the earlier episode "Borderline," in which Deeks told Kensi that at Thanksgiving dinner six years earlier, his father had fired a shotgun at him.)
At the end of "Personal", Hetty gives Deeks her number, resulting in her becoming his next of kin.
In the Season 3 episode, Episode:The Debt, Deeks's position was terminated and he was fired from NCIS after shooting an unarmed man. It was later revealed that the supposedly dead victim was actually an undercover NCIS Agent working out of Washington D.C. The incident gave the LAPD a reason to take Deeks back after so long while also cutting their ties with NCIS. The OSP team were eventually able to find out the identity of the mole and in the end, Deeks returned to the OSP, having been reappointed as the LAPD/NCIS Liaison Officer.
Deeks owns a dog named Monty who suffers from PTSD or as Sam Hanna refers to it, "Puppy Traumatic Distress Disorder".
Deeks shares a trait with Ziva David, the trait being that both are/were Liaison Officers for their respective agencies, Ziva's being Mossad and Deeks's being the Los Angeles Police Department.
However since Season 7 Ziva has officially resigned from Mossad and gone to become an NCIS Special Agent, abandoning her original position.
This in turn might have led to Vance and Hetty to create an Liaison position between the LAPD and NCIS which is similar to the one between Mossad and NCIS. But it is not yet known if Deeks will stay in that position permanently or like Ziva, if he will resign altogether and choose to become an NCIS Agent instead.
An irony is despite his position as a Liaison Officer Deeks is generally disliked by other members of the LAPD as he mentioned in "Fame". "You know how it is with undercover cops, I've pissed off more than my fair share of shields." this leads to most LAPD officers acting hostile towards or being dismissive of him.
Relationship with ColleaguesEdit
Callen and Deeks share a friendly relationship at work. However, Callen often joins Sam in teasing Deeks; mostly about his hair, his partnership with Kensi and his dog, Monty.
Callen does show genuine concern for his co-worker when Deeks gets shot in the second season episode "Personal".
At first, Sam was somewhat hostile towards Deeks, calling him 'temp' and being unhappy when Hetty placed him in Dom's seat. However, he soon warmed up to Deeks and spends most of his time teasing him with Callen.
When Deeks gets shot, Sam assists him in altering his daily routine.
There is still friction between Deeks and Sam throughout season 3 and 4, usually it is kept at bay since they are not partners. However, in the final episode of season 4, Deeks and Sam work together. Deeks confronts Sam and Sam admits that he feels Deeks has some flaws in his character.
Later in the episode Deeks saves Sams life and both he and Sam are captured and tortured at the end of the season 4.
Deeks and Kensi share a complicated partnership due to the fact that Kensi is the more experienced of the two and also because Deeks permanently replaced Kensi's deceased partner. But despite this they do care for each other although they get on each other's nerves at times. There have even been hints that Deeks and Kensi are romantically interested in one another although they both strongly deny it but despite this, they kiss in the season 4 finale.
- Deeks enjoys surfing, a hobby his actor, Eric Christian Olsen has a strong interest in.
- In his appearances in Season 1, Deeks appeared as a Guest Star but was added to the opening credits in Season 2 at the expense of Peter Cambor (Nate Getz).
- Claims that the TV show CHiPs is what inspired him to become a cop.
- In his debut appearance, Deeks was seen using a Glock 17 before switching to Beretta 92FS during Season 2, claiming that the Beretta 92FS's "manual safety saved [his] ass one time during a gun snatch attempt by a junkie". In Season 3, Deeks switches to a Smith & Wesson 5944 instead which he has continued to use to this day.
- Deeks admitted in 4x16 to paying for room and board once in college and an half dozen times in law school by being an exotic dancer or as Kensi put it, a stripper.
- As a lawyer (and before joining the LAPD), Deeks worked as a public defender.
- Much like his counterpart, Anthony DiNozzo in the original "NCIS" series, Deeks tends to be the comic relief of the group but can be serious when needed and also just like Ziva David, Deeks is also the third partner that Kensi has had much like Tony who had two partners: Agents Vivian Blackadder and Caitlin Todd before Ziva joined him.