Hun first appeared in "Casey Jones VS. The Underworld" where he and the Purple Dragons are robbing a bank. Even though they fought Casey Jones, Hun managed to outfight him before getting away without the money. Having already met Shredder, Hun and the Purple Dragons were able to obtain some chemicals that Shredder was looking for where Hun states that they came from an abandoned factory that is on the Purple Dragons turf. When the Ninja Turtle arrived to fight Shredder, Tiger Claw, Rahzar, and Xever at the abandoned factory, Casey fought against Hun again and was able to defeat him by knocking him into a cheese vat. After the Turtles caused a chemical reaction to the chemical with the additives used in the cheese balls, Shredder states to Hun, Rahzar, Fishface, and Tiger Claw that the Turtles have only delayed him.
Hun wears shades, sports a half opened shirt and a gold medallion. He also has a big Purple Dragon icon tattoo on his left arm and many other tatoon on his torso. Unlike previous incarnations of the character, Hun is Chinese-American and slender-shaped.
- His design is explicitly inspired by Bruce Lee.