The Legendary and Warner Bros. Dune franchise has found its Emperor Shaddam. Deadline reports that Christopher Walken has been cast in Denis Villeneuve’s highly anticipated sequel for his sci-fi series. He joins recently announced cast members Florence Pugh cast as the Emperor’s daughter Princess Irulan and Austin Butler who nabbed the villain role of Feyd-Rautha of House Harkonnen. Returning ensemble of Dune: Part I includes Timothée Chalamet, Rebecca Ferguson, Zendaya and Josh Brolin.