TN-3465 was a human female TIE fighter pilot who served in the naval forces of the First Order. Following the Battle of Starkiller Base, she and her BB unit BB-K8 accompanied Captain Phasma on a mission to hunt down Lieutenant Sol Rivas for his alleged role in Starkiller Base's destruction. Their mission brought them to the remote, rocky and oceanic world of Luprora.
There, TN-3465 and BB-K8 helped Captain Phasma to enlist the help of the humanoid Lupr'or colonists in attacking the R'ora's stronghold, where Rivas had been taken captive. This attack served as a diversion for Phasma to kill Rivas in order to conceal her role in lowering Starkiller Base's shield. TN-3465 learnt about Phasma's complicity in the superweapon's destruction. However, Phasma killed TN-3465 and destroyed BB-K8 in order to eliminate all "loose ends."