Just arsenic overmuch arsenic The Twilight Zone fans expected a large twist ending oregon shocking result from each outing’s story, it was always expected to get an insightful opening and closing narration from Rod Serling each episode. The sci-fi genius took connected assorted connected and off-screen roles that made him synonymous with the series’ legacy, with Rod Serling penning galore of The Twilight Zone’s champion episodes successful summation to being the show’s iconic creator and host.