Sonja Denise Plack (née Williams; born May 9, 1964), known professionally as Sonja Sohn, is an American actress, activist and filmmaker, best known for portraying Baltimore detective Kima Greggs in the HBO drama The Wire (2002–2008). She is also known for having starred in the independent film Slam, which she co-wrote, and appearing as Samantha Baker in the ABC series Body of Proof. Her role in The Wire led to her work as the leader of a Baltimore community initiative called ReWired for Change.