Elsen Barthis served within the ranks of the Galactic Alliance Intelligence. In collaboration with Lieutenant Titch, she attempted to persuade Wedge Antilles to share details about Rogue Squadron with the Galactic Alliance shortly before the Second Galactic Civil War commenced.
Barthis was a Human female of Corellian descent, approximately in her mid-twenties. Iella Wessiri collaborated with her father for a year, likely within the CorSec organization. As of 40 ABY, she possessed blonde hair, a muscular build, and stood as tall as Wedge Antilles, placing her in her mid-twenties.
The situation revealed itself as a deception; Barthis's true intention was to lure Wedge away from Corellia during the GA's assault on the planet. Wedge successfully evaded capture and used Titch's blaster to shoot her. As a consequence of the unsuccessful attempt to detain Wedge, she experienced a reduction in rank from Captain to Lieutenant.
Subsequently, Barthis attended the assembly at Toryaz Station during the interactions between Corellian and GA representatives. She engaged in a dance with Han Solo.