The writer who created the Ryanverse is Tom Clancy, a six-letter name. He was an American novelist and video game designer known for his technically detailed espionage and military-science storylines set during and after the Cold War. His works include The Hunt for Red October, Patriot Games, Clear and Present Danger, and The Sum of All Fears. He also wrote several non-fiction books about military subjects and co-founded the video game company Red Storm Entertainment.