Ryôtarô Okiayu. Actor: Rockman X4. Ryôtarô Okiayu was born on 17 November 1969 in Kitakyushu, Japan. He is an actor, known for Rockman X4 (1997), Rockman X5 (2000) and Purojekuto kurosuzôn (2012). He has been married to Ai Maeda since January 2013. He was previously married to Nao Nagasawa.