From Wikipedia, the free encyclopedia Reginald Reg E. Cathey (born August 18, 1958) is an American stage, film and television actor. Cathey is a native of Huntsville, Alabama and a graduate of J.O. Johnson High School. He spent his childhood in Germany. One of his earliest roles was starring in the childrens television show Square One. He later had guest roles in episodes of shows such as Star Trek: The Next Generation and Homicide: Life on the Street. He played the villain Dirty Dee in the cult comedy film Pootie Tang. He had a regular role on the HBO series The Wire as Norman Wilson during the fourth and fifth seasons. He also worked with The Wire creator David Simon on the Emmy award-winning mini-series The Corner; Cathey played a drug addict known as Scalio. He had a recurring role on the HBO prison drama Oz as unit manager Martin Querns.