Carl Winston Lumbly (born August 14, 1951) is an American actor. He is known for his roles as television's first black superhero in M.A.N.T.I.S., Dick Hallorann in Doctor Sleep, 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 J'onn J'onnz / Martian Manhunter in the animated series Justice League, Static Shock, and Justice League Unlimited, all part of the DC Animated Universe. As a reference to his voice work as J'onn, Lumbly portrayed J'onn J'onnz's father, M'yrnn, on The CW's Arrowverse on Supergirl from 2017 until 2019. He also plays Isaiah Bradley, the first Black super-soldier, in the Marvel Cinematic Universe (MCU) series The Falcon and the Winter Soldier (2021) and the film Captain America: Brave New World (2025).