Brunt is a male Ferengi and an antagonist first introduced in the Star Trek: Deep Space Nine episode "Family Business".
He was portrayed by Jeffrey Combs, who had also played the various incarnations of the Vorta Weyoun.
An auditor in the Ferengi Commerce Authority, Brunt was assigned to audit Quark after Quark's mother Ishka had been found to have been making profit. Traveling back to Ferenginar, Quark was able to convince his mother to give up the money she had made before the FCA took action against Quark. After Brunt got the confession he was looking for, he left, hoping to never see Quark or his family again. Quark told him the feeling was mutual.
However neither Quark or Brunt would get their wish as Brunt would return again and again to harass Quark, his family, and Grand Nagus Zek - whom Ishka had gotten involved with.
After Zek retired and named Rom Grand Nagus, Brunt tried to get Rom thrown out of office, but failed in his attempt. As a result of his attempted coup Brunt was forced out of the Congress of Economic Advisers and lost his business license as well. Brunt was forced to partner with Quark's cousin Gaila to get back on his feet.
Brunt was one of the many Star Trek roles to be played by Jeffrey Combs.