Brennan Marcel Williams is an American professional wrestler and former American football player. He is currently signed to All Elite Wrestling (AEW) under the ring name Mason Madden as one-half of the tag team MxM Collection alongside Mansoor. He also performs for its sister promotion Ring of Honor (ROH) and on the independent circuit. He is best known for his time in WWE, where he performed under the ring names Dio Maddin, Mace, and ma.çé.