Ryûji Katagiri was born on August 14, 1947 in Shimonoseki, Japan as Koji Hatano. He is an actor, known for Aibô: the Movie: Zettai zetsumei! 42.195km Tôkyô Big City Marathon (2008), Aibô (2000) and Kanshiki Yonezawa Mamoru no jikenbo (2009).