The science-fiction LitRPG book series Dungeon Crawler Carl is one of the most popular on Audible, and the audience behind the story has exploded over the past few years. What's the magic behind Jeff Hays' audiobook narration? Even though it's a more obvious task when it comes to first-person narration with the main character Carl, Hays prioritizes the storytelling every step of the way. Dungeon Crawler Carl by Matt Dinniman (Dungeon Crawler Carl #1) | Image: AceWho will Jeff Hays play in the Dungeon Crawler Carl tv series? All audiobooks in the Dungeon Crawler Carl series are currently available on Audible.