This cube craft paper toy is Ryo Bakura a character in the the manga Yu-Gi-Oh! (also named as “Game King” or “King of Games”), this paper craft was created by alonso jacobo. In the English, his name is Ryou Bakura, but is only called "Bakura"; as per Japanese custom, the other characters aren't close enough to call him by his first name.
Yami Bakura (Dark Bakura) is his other self, released from the power of the Millennium Ring. The two rarely directly converse. Unlike the relationship between Yugi Muto and Yami Yugi, Yami Bakura is a malignant entity, and has a separate mind, despite he and Bakura being the same person, and because of Ryo's weak will he completely suppresses his soul when he takes over.
You can download this cube paper craft toy here: Yu-Gi-Oh! - Ryo Bakura Cube Craft Free Paper Toy Download