Mas Oyama
He was created by Manabu Takemura and Takashi Nishiyama. Nishiyama's inspiration was the martial artist Mas Oyama. For his second appearance, Ryu's design changed from that of a young fighter to a skilled karate practitioner. However, because of issues in the making of "Street Fighter II" he possessed a major weakness within the cast. For the next titles, Ryu's fighting style was modified, so he had different skills with Evil Ryu and Kage possessing more diverse moves. Multiple actors have voiced him both in Japanese and in English.