Serial Designation J from the series "Murder Drones" is a character known as a Disassembly Drone. She was originally a Worker Drone before being repurposed. J is characterized by her incredible loyalty and serves at Elliott Manor after being befriended by Tessa. She was initially an antagonist and the leader of her squad of Murder Drones, showing a serious and critical personality to ensure her team functions effectively. Over time, her role and relationships evolve, making her a complex and significant figure in the storyline.

She was the leader of the Disassembly Drone squad in "Dissassembly Drones." Her squad met a tragic fate when J was believed to have died after Uzi vaporized her upper body with a railgun. This event effectively ended her leadership and the existence of her squad, marking a significant turning point in the series. The squad's demise reflects the intense and dangerous conflicts central to the storyline.

Her behavior in "Murder Drones" is marked by seriousness, loyalty, and a critical leadership style. As the leader of her Disassembly Drone squad, she is focused on ensuring her team functions efficiently and effectively, often showing a no-nonsense attitude. Despite her initially antagonistic role, J exhibits complexity in her character, including moments of loyalty and a sense of duty. She is also portrayed as somewhat isolated, driven by her mission and responsibilities, which adds depth to her personality beyond just being a villain. Her behavior reflects a blend of determination, leadership, and underlying vulnerability shaped by her past as a Worker Drone and her transformation into a Disassembly Drone.

"State your purpose. I have no time for distractions."