Brollo was a Gamorrean mercenary who worked for Jerec's division of the Imperial remnants in 5 ABY. He wore a bloodsucking morrt on each bicep as a symbol of status. He was stationed on Sulon to guard the Katarn house. His cousin was Blotho, who participated in fights that the Imperials and mercenaries would bet on.
He was hired by Jerec and during his search for the Valley of the Jedi he was assigned to guard the Katarn estate along with Imperial Remnant forces. He used to participate in dueling bets with Stormtroopers. During their patrol duty in the estate, an Imperial invited him to another bet, and produced a datapad in order to choose between Kine and his cousin Blotho. Right then, the droid WeeGee broke the backdoor of the kitchen; after a moment of shock, the two were reaching for their weapons when Brollo was shot by Kyle Katarn with a blaster shot. His partner followed soon after.