Hack Fenlon was a senator representing his constituency in the Imperial Senate. He was male and served during the initial years that the Galactic Empire was in power, during its reign. Fenlon offered a bounty for the capture of Gronson Takkaro, a Dug who was deeply in debt to him. Takkaro had managed to evade capture by Imperial forces across three separate star systems. Fenlon specifically desired Takkaro to be apprehended alive and brought back to Ahakista, a task that fell to the bounty hunter Bossk. The hunter located Takkaro on the planet Lothal, however, he was double-crossed by Lieutenant Jenkes of the Imperial Security Bureau, who was secretly collaborating with Takkaro.
The first reference to Fenlon occurred in Ezra's Gamble, a young adult novel authored by Ryder Windham, which saw its publication in 2014.