Mr. Beck

From Ben10versepedia

Mr. Beck is a mob boss that desired for Gaterboy and Porcupine to win the winnings. He had threatned to kill Gaterboy and Porcupine's mother, in which he nearly performed, up until he was overpowered by Ditto, Gaterboy, and Porcupine. Mr. Beck first appeared during the Ben 10 episode, "Ready To Rumble".