Warner Bros. has released one of the final character posters for 300: Rise of an Empire after a week that has included Sullivan Stapleton as Themistokles, Eva Green as Artemisia, Jack O'Connell as Calisto and Lena Headey who reprises her role as Queen Gorgo. Today, we get fan-favorite Rodrigo Santoro who returns from the 2007 franchise starter 300, once again playing the God-King Xerxes. Check out the latest one-sheet along with the other four as we await the arrival of this sequel spring 2014.