Warren Spector is a role-playing game designer and a video game designer. He is known for having worked to merge elements of role-playing games and first-person shooters. He is best known for the cyberpunk video games System Shock and Deus Ex, and also for the Disney adventure game Epic Mickey. He worked on games including Ultima Underworld I and II, System Shock, and worked briefly on Dark Camelot, which later became Thief: The Dark Project. Later he founded Ion Storm Inc.'s Austin branch, which went on to develop Deus Ex, Deus Ex: Invisible War, and Thief: Deadly Shadows.
Really interesting takes on game development for those interested.