Quick Billy was a mysterious cowboy from a planet that seemed to be stuck in the Wild West. He was first seen speaking to Mistgun about someone named Jedediah Stormen, a demonic cowboy that was messing with Billy's land. Quick Billy was secretly part of Jedediah and Keichi's secret plan to kidnap Klak for the Apprentices of Caiaphus. Once Jedediah was defeated, Quick Billy abandoned everyone, and Keichi kidnapped Klak. The Battle of Conquistadores v. Apprentices of Caiaphus happened. He then met Sephiroth, and they hung out for a while.