Mukuro Enjou  

Hunter Pace, 炎城ムクロ

In the world of 5Ds, there's a character named Mukuro who used to be the champion of Duel Monsters. He dresses like a biker and has a similar mindset. When this version of Mukuro is dubbed in English, he has a Texan accent and often begs for mercy before losing a duel. Typically, Mukuro challenges Jack, trying to take his title as King, but fails. In episode 58, an alternate version of Mukuro appears in an underground duel against Shun.