Penelope 'Nell' Jones is a former NCIS Intelligence Analyst assigned to the Office of Special Projects in Los Angeles.
Nell also received training, enabling her to go into the field and serve as an agent, assisting the rest of the OSP team during their investigations or serving as a temporary partner for one of the members.
Following OSP's Operations Manager Henrietta Lange taking a leave of absence in November 2020, Nell became Acting Operations Manager, a role she maintained up until her resignation and departure from NCIS and OSP in May 2021.
A recent Ivy League graduate whose analytical skills and technological aptitude have rendered her an invaluable aid to the OSP Team.
NCIS: Los Angeles Season 2
Nell made her debut appearance in the NCIS: Los Angeles Season 2 episode, Special Delivery. In Lockup, it is shown that Nell and Nate have met previously (the nature of their relationship remains unknown). She also seems to have a good relationship with Hetty, with Hetty occasionally using her given name or calling her 'dear'. She seems to be friends or at least on good terms with Kensi, who invites her to join the others for drinks in the episode Absolution.
NCIS: Los Angeles Season 3
Eric obviously has feelings towards Nell, although it often appears as if she doesn't exactly return them. This is often up for debate though, since in Patriot Acts, Nell flirts with Nate in order to get Eric's attention and in Greed, she avoids the subject of who sent her flowers. One of the bigger signs is when she shows significant signs of jealousy when a new woman has some type of significant relationship with him. This is shown in Cyber Threat.
In Higher Power, Nell tells Eric that her cover story, which she has told her family, is that she is a TV/news editor. He reciprocates by telling her that his cover story is that he is a professional Blackjack player. Something he claims was true until he was banned from Vegas.
NCIS: Los Angeles Season 4
Eric and Nell shared a kiss under the mistletoe during Season Four's Free Ride. This was at the end of the episode when no one else was around.
NCIS: Los Angeles Season 5
In War Crimes Nell defends herself in the Boatshed with a knife pulled from her boot, after the suspect gets her weapon away from her, dealing enough damage to send him to the hospital while she receives only a small cut above the right eye causing Granger to quip, "Not bad for an Analyst".
NCIS: Los Angeles Season 6
Nell suffered a setback with regards to her field work in Praesidium, when she shot and killed a suspect who was working for Matthias Draeger. In the Season Six Christmas Episode: Humbug Nell invites Eric to come with her to visit her family for the holidays, suggesting when he is trying to think of a cover story that he could say he is her boyfriend. At the end of Blaze of Glory when Nell is alone in OPS Center, Eric returns from his meeting with Blaze and apologizes for the way he has been acting. They then share an intimate moment as they fly the Quadcopter together around the Office of Special Projects.
NCIS: Los Angeles Season 7
NCIS: Los Angeles Season 8
In the episodes: The Queen's Gambit and Black Market, Nell shows her proficiency in hand-to-hand combat in apprehending suspects and is nicknamed "Give Them Hell, Nell!" by Deeks, who gave her the nickname “Nellasaurus”. In The Queen's Gambit after Nell takes a suspect down Callen tells her, "You should never ignore the Nellverine”. In Ghost Gun, as she is partnered with Granger, she introduces herself as Special Agent during an investigation.
In Tidings We Bring, when Eric becomes upset that Nell has to cancel on their plans to attend the Dickens Fair together because she got into a mentoring program to which he didn't know she was applying and becomes afraid they are beginning to grow apart, she gives him as a Christmas present a Pendulum Clock telling him that when two such clocks hang on the same wall the Pendulums begin to swing together, meaning she and Eric will always be in rhythm with each other, thus implying that if they are not already a couple they are certainly best friends who will one day become a couple. In the same episode, Nell mentions having a brother who had a set of toy soldiers including one of Saint Joan of Arc. Nell gave the little figurine to Kensi Blye in an attempt to cheer her up as she had been training hard to be reinstated as an Agent after being hospitalized for months.
In Getaway, Nell and Eric shared their first kiss.
NCIS: Los Angeles Season 9
In This Is What We Do, Nell's sister, Sydney Jones came to help with an NCIS Case and she called Nell by her full first name "Penelope". When Eric told her he can't believe she didn't tell him her first name and that it is a nice name, Nell answered (in an old English accent): "Yeah, maybe, if you are from Victorian England".
NCIS: Los Angeles Season 10
In Superhuman, Eric explained to Nell his landlord was selling his place and he has to find a new place to live. Eric asked if she wanted to move in with him, not because of finances, and she cut him off, answering "I would love to move in with you", and they are now officially living together.
NCIS: Los Angeles Season 11
NCIS: Los Angeles Season 12
After filling Hetty's position for the entire season Nell is questioning whether she really wanted the job. When Hollace Kilbride give her an ultimatum; take the job or leave, she feels pressured to make a decision. Then Eric gives her the opportunity to go work with him at the International Head Office of his company in Tokyo. She ultimately decides to go with Eric.
Early on she kept on interrupting Eric Beale when he was talking, mainly due to nervousness. However, she calmed down over time and the two of them were able to work together flawlessly.
She is very assertive and not afraid to speak her mind. She is even capable of scaring the field agents who often remark on her nature. Some of the team even call Nell the 'Nellverine', a play on DCU character 'Wolverine'.
Nell has proven to be quite capable in the ways of field agents.
When Nell first appears in season 2's Special Delivery, she has a red pixie cut hairstyle, which slowly grows out as the series progresses. She is of a small-medium stature. Small enough that she is barely able to wear a Hetty-sized sweater in season 2's Disorder.
It has been mentioned many times that Nell has a remarkably high IQ, so much so that Hetty claims her IQ is higher than the team's combined IQ score. Prior to joining NCIS, multiple think tank companies were chasing her to join them.
As a field agent, Nell is trained in gun use with her shots capable of injuring or killing her target.
- She is Catholic (more precisely Roman Catholic), as in the episode Standoff, she made the sign of the cross before turning off the power to downtown LA for an undercover operation. More precisely, she made the sign of the cross touching her left shoulder before her right (this variation is unique to Roman Catholics).