Frederica Sawyer is a cleaner in the town of Roanapur, Thailand, who specializes in body disposal, but occasionally delves into bounty hunter work. She uses a chainsaw as her disposal tool as well as weapon during bounty hunter work.
Since her throat had at one point been cut open, characterized by a massive scar, she uses an Ultravoice to communicate. Should she lose her Ultravoice, she will drop into a fetal position, most likely due to 'emotional issues'.
Her legitimate business front is a meat packing business named U.G. Pork.