Mukuro Enjou

In Yu-Gi-Oh! 5D's:
Mukuro is a character in 5D's, and was once the Duel Monsters world champion. He dresses in biker gear and adopts a similar attitude. In the dub, Mukuro has a Texan accent and usually pleads for mercy when he is about to lose. He is mostly shown when he challenges Jack in an attempt to take Jack's title of King, but was unsuccessful.

In Yu-Gi-Oh! Arc-V:
Mukuro's alternative version who appears in episode 58, where he was shown in an Underground Duel against Shun.