Marlyne Barrett is an American actress. She had her career beginnings in the 2000s. She debuted in the TV film The Growing Pains Movie. She later made her film debut in Hidden Agenda. Her next movie roles were in Love, Sex and Eating the Bones, Hitch, and Off the Black. On TV, she first became known for her role as Felicia Marquand on Damages. She next played Council President Nerese Campbell on The Wire. Afterward, she played Thomasina on the TV show Kings. She currently stars as Nurse Maggie Lockwood on the NBC series Chicago Med. She reprised her role on Chicago Fire and Chicago PD.