Roper Klacks is an Alchemist who lives north of Riverwood in a floating castle. April first hears about him from Captain Horatio Nebevay, who tells her Klacks has captured the wind, so no ships can travel. Though several attempts have been made to defeat him, none of them have succeeded. To free the wind so she can get to Alais, April travels through the woods to find the Alchemist. While speaking to April, Klacks mentions that he knows something about her parents, but doesn't elaborate. In TLJ, Dreamfall and Dreamfall Chapters, Roper Klacks is voiced by Ralph Byers.