Carl Lumbly

Carl Winston Lumbly (born August 14, 1951) is an American film, stage, and television actor. He is best known for his roles as NYPD Detective Marcus Petrie on the CBS police drama Cagney & Lacey, CIA Agent Marcus Dixon on the ABC espionage drama series Alias, and as the voice of the Martian Manhunter on the animated series Justice League and Justice League Unlimited (and in the direct-to-DVD animated film Justice League: Doom).