Sergey Volkov (セルゲイ・ヴォルコフ)
A criminal who became known as the "Duelist Crusher," Sergey was later re-purposed as one of Jean-Michel Roger's key enforcers in his takeover of the City. (Source: Yu-Gi-Oh! Wikia, edited)
Voice Actors
Daichi Endou
Japanese
Johann Fohl
German