Jackal Queenston was an alias of Emma Essex under the Halley Labs (www.halleylabs.com) label. He was a male jackal who was often seen smoking and wearing attire inspired by the Nazi Party and other WW2 era uniforms. He typically produced drum and bass, characterized by heavy basslines, fast drum breaks, and dark themes alluding to violence or power. Jackal Queenston originally debuted as a new character for the MGD series, with songs first appearing in an 'Addon Pak' and then MGD 3: The Third Rave, released on August 23, 2008.