Lekket was a female Quarren smuggler (from the planet Mon Calamari) active during the decline of the Galactic Republic; both she and her species are classified as Legends material.
Lekket, along with her egg-mate Tallet, operated a smuggling ring for various Hutt crime lords. Their illegal activities were discovered by an ambitious Quarren named Tikkes, who then reported them to Republic authorities. Consequently, the Jedi Master known as the Dark Woman orchestrated a raid on their underwater cartel, effectively dismantling it. As Lekket and Tallet attempted to flee through an access tube, their bodyguards engaged the Republic forces. During the chaos, the Dark Woman inadvertently deflected blaster fire, which struck a nearby fuel cell. The resulting explosion released toxic acid into the escape tunnels. Tallet was severely burned by the acid, but Lekket managed to pull him to safety.
Escaping Calamari, the two Quarrens sought refuge on Balmorra. There, Colicoid scientists administered a bacta chemical bath to Tallet, saving his life but leaving his face permanently scarred. After leaving Balmorra, they both vowed revenge against Tikkes for his betrayal.
The Quarren refugees established a new base of operations on the arid, volcanic world of Talas. Over time, they amassed a small army of droideka destroyer droids. Seeking assistance, they contacted the bounty hunter Aurra Sing. Upon Aurra's arrival on Talas, the Quarrens deployed their droidekas to test her combat skills, which she surpassed with ease. Lekket then recounted their history to Aurra and requested that she assassinate Tikkes, who had become a Republic senator. Although Aurra had no intention of killing Tikkes, she accepted the mission, recognizing it as an opportunity to eliminate her former mentor, the Dark Woman.