Brett Giehl, better known by his ring name Dalton Castle, is an American emcee and professional wrestler signed to Ring of Honor (ROH) and All Elite Wrestling (AEW). He made his professional wrestling debut in 2008 and is a two-time ROH World Six-Man Tag Team Champion, one-time ROH World Television Champion, and one-time ROH World Champion. Throughout his career, he has also competed in various independent promotions, including Chikara, Beyond Wrestling, and Empire State Wrestling, where he wrestled under the names Ashley Remington and Phantom.