Casuality Seattle: A Conference for Casual Game Developers, Publishers, and Distributors is set to take place June 27 to 29, and the organizers today have announced a new slate of speakers for panels on the event's third day. Today's additions include AOL Games vice president and general manager Ralph Rivera, Microsoft Casual Games studio manager Chris Early, and Wildtangent executive vice president Dave Madden. Previously announced keynotes feature EA cofounder and chief creative officer Bing Gordon, RealNetworks CEO and chairman Rob Glaser, and PopCap cofounder John Vechey. For a full list of announced panels and speakers, check out the event's Web site.