Halloway was a Human woman employed by the Republic Strategic Information Service. She was active during the Galactic War that pitted the Republic against the Sith Empire. In the course of the Battle of Corellia, Halloway collaborated with the Corellian insurgents to save Councilor Haronn. This rescue mission became necessary when the vessel intended to transport him away from the planet was destroyed above the Blastfield Shipyards.