Quark was a 24th century Ferengi and the eponymous proprietor of Quark’s Bar on space station Deep Space 9 (previously known as Terok Nor). He was a constant thorn in the side, sometime adversary, sometime confidante of station Security Chief Odo. Even though he engaged in numerous shady ventures, by Ferengi standards Quark was a compassionate and generous man who proved his worth and loyalty to nearly all DS9 crew members throughout the years, gaining their well-earned respect.