Firil had been a professional bounty hunter for only a year before getting an assignment from the Galactic Empire to track a rebel agent. She worked with another novice bounty hunter named Chandrex Grenn. They tracked the Rebel to a secret camp in the foothills on Kallistas. After a brief firefight they were able to disarm the rebel, wounding him in the process. They turned their captive over to Prefect Dengless Rinn and divided their thousand credit prize between them. Rinn then hired Firil and Grenn, along with another bounty hunter, Demos Traxen, to hunt the pirate Jondrell Inx.
Sirenas Firil was designed by Bill Smith for Galaxy Guide 10: Bounty Hunters, a supplement for the Star Wars Roleplaying Game that was published by West End Games in 1994.
- Galaxy Guide 10: Bounty Hunters