Serial Designation J

Physical Appearance Serial Designation J has the distinctive features of a female Disassembly Drone, with wide hips and shins tapered to a point. She has silver hair styled in high-sleek twin silver-colored ponytails, tied with black ribbons. Like other Disassembly Drones, she has neon yellow eyes and a black headband adorned with five additional eyes that contain Nanite Acid and match the color displayed on her visor, as well as a long, thin black tail ending in a large syringe also filled with Nanite Acid.

Her attire consists of a short-sleeved black shirt with side pockets under it, a black leather belt giving it as a skirt, a dark yellow shirt beneath her blazer, and a tie, giving her the appearance of professionalism, especially in comparison to the other two members of her squadron.

As for her legs, it appears as though she is wearing knee-high stockings with visible suspenders, but this is in actuality just the coloration of her chassis. On her left bicep, she wears a yellow armband marked with a skull emblem, signifying her role and identity as a Disassembly Drone.

When in combat mode, she reveals jagged teeth, and her visor displays an "X" shape, signaling her aggressive intent. Her appearance is further heightened by large metal wings with a yellow and black color pattern and possesses 16 feather blades, with the middle of these wings being two yellow glowing circles. She is demonstrated to have interchangeable hands that she can switch out for other tools and weapons that can aid her in her missions, one of which are three-sharp claws, which enables her to tear through targets with ease.Personality J is best described as a "lethal workaholic," as she is incredibly dedicated to her job - even using corporate jargon like "synergistic liability" and "fourth-quarter profits" in place of insults or vulgarism. J had a penchant for obeying authority and following orders as far back as her days as a Worker Drone, where she refused to intervene in Tessa's abuse from her parents, as "corporate" (her parents) had spoken.

Although J is not as sadistic as V, she is still a cold killer and looks down on others whom she perceives as being "lesser", hypocritically referring to Worker Drones as "barely sentient toasters" despite her former role as a Worker Drone herself. J was stated to "take pleasure in domineering this beneath under the guise of following orders". This is best shown in J's relationship with N, as she despises him and frequently abuses him both physically and emotionally, angrily stating while crushing his throat that she would personally kill him if she was allowed, something she eventually does without hesitation by installing a virus in his OS when N questions attacking the Worker Drones. Notably, she also drew out the act and took great satisfaction in it, mocking N while he lay on the ground. In flashbacks of the Elliott Manor, J was shown to be abusive to N, unnecessarily hitting and insulting him in front of V.

J is also arrogant, domineering, and prideful, as she finds satisfaction in belittling others. This habit often tends to get the better of her, as seen in almost all of her appearances. In the PILOT after incapacitating Uzi via an EMP, J took her time with a monologue (which she patted herself on the back for by calling it the "BestMonologueEver"), giving Uzi the chance to subdue J with her own nanite acid. In Absolute End, J takes the time to correct V's insult of referring to her a "narc", instead referring to herself as a "senior informant", allowing V to hurl her into a meteorite. Even as a Worker Drone in Home, J is seen with a cocky smirk standing next to Tessa when the two of them infiltrate the gala, allowing Tessa to quip before immediately being possessed by Cyn, flunking their attempt to stop the massacre.

Despite her arrogance and frequent belittlement of others, however, J praises her comrades if she believes they deserve it, as she gladly swallows her pride and even congratulates N despite her hatred of him, referring to him as a "stud" and patting him on the back before rewarding him with a branded pen (something she herself considers a major accomplishment) for getting past Outpost 3's doors. In addition to this, she seems to have some form of begrudging respect for enemies that prove themselves particularly skilled in some field; in the special episode Meet J, it's shown that she considers Khan Doorman an "Actual Genius", as she has written under a photo of him when explaining the problem of Outpost 3's bunker doors.

J used to be more emotionally open as seen in N's memories of the Elliott Manor, where being in the presence of Louisa scares her and causes her to awkwardly fidget with her hands, with Louisa's mention of having V (among other drones experiencing the 606 error in the library) disposed visibly upsetting her. J also does not object to Cyn standing up to Louisa, and visibly becomes nervous for N's safety when he attempts to cover for her, although, it quickly turns to exasperation when he does a poor job of it. She also acted to defend N from a possessed V despite her surliness towards him so he could check out the basement.