Donald Callis (born October 13, 1963) is a Canadian professional wrestling color commentator and executive, as well as a former professional wrestler and manager. For most of his career he has been known as either Cyrus (shortened from Cyrus the Virus) or Don Callis. He first gained international attention working under the name The Jackyl working for the World Wrestling Federation (WWF). Callis is currently Impact Wrestling's co-executive vice president. He also worked for New Japan Pro-Wrestling (NJPW) as an English language commentator on NJPW World.