American musician who is the vocalist for the Southern metal band Maylene and the Sons of Disaster. He is the former vocalist and founder of the American metalcore band Underoath. He performed on three Underoath albums: Act of Depression, Cries of the Past, and The Changing of Times. In 2003, Dallas left Underoath, and was replaced by Spencer Chamberlain. He was born in Ocala, Florida.