Ryou Bakura

Bakura Ryou is a classmate and friend of Yugi Muto. Yami Bakura is his other self, released from the power of the Millennium Ring. The two rarely directly converse. Unlike the close, cooperative relationship between Yugi Muto and Yami Yugi, Yami Bakura is a malignant entity that completely suppresses Bakura's spirit when he takes him over.