American actor who has often played law enforcement characters on television in roles such as NYPD Detective Marcus Petrie in the CBS police drama Cagney & Lacey and CIA Agent Marcus Dixon in ABC's Alias.
He appeared in the 1979 film Escape from Alcatraz and the 1981 films Lifepod and Caveman. He also made his first TV appearance in an episode of Lou Grant.
He has been a part of the Justice League franchise, providing the voice of Martian Manhunter in the Justice League animated series, direct-to-DVD films, and video games.
He was married to Vonetta McGee from 1987 until she passed away in 2010.
He had a role in the film Men of Honor, which featured Cuba Gooding Jr.