Ryo Mizuno is a Japanese author and game designer. Mizuno created Record of Lodoss War, Rune Soldier, Sword World RPG and Starship Operators. He was also involved with the Galaxy Angel manga. Mizuno recently worked on Tri-Ace and Square Enix's action-RPG Infinite Undiscovery. He has shown talent in both dramatic and humorous genres. He was one of the founding members of Group SNE.