William Radhames Castro Checo is a Dominican former professional baseball pitcher and former pitching coach for the Milwaukee Brewers of both the American League and National League. He was the interim pitching coach with the Baltimore Orioles of the American League. Gary Thorne of MASN reported in the broadcast of the August 27, 2013 game between the Orioles and the Boston Red Sox that Castro succeeded Rick Adair because Adair had taken a leave of absence for personal reasons starting in August 2013. Gary Thorne, broadcasting the game between the Orioles and the Los Angeles Angels on July 5, 2012, on MASN, announced that Castro became unavailable for that game because of a death in his family and returned home to the Dominican Republic.