Harry Lennix is an American actor. He had his career beginnings in the late 1980s. He made his debut with a small role in the film The Package. In the 1990s, he had roles in the films Bob Roberts, Guarding Tess, Clockers, Comfortably Numb, and Get on the Bus. In 1999, he had a supporting role in the film Titus. He also played Agent Ron Wagner in the TV series Diagnosis: Murder and Dr. Greg Fischer in ER. In the 2000s, he had more notable roles in some major films, including the part of Commander Lock in The Matrix Reloaded and The Matrix Revolutions. He later starred in Ray, Stomp the Yard, Across the Universe, and State of Play. As of 2013, he plays Harold Cooper in The Blacklist.