According to Wikipedia,
Corey Parker Robinson is an American actor. He has appeared on the HBO program The Wire as Detective Leander Sydnor. He also appeared in The Wire creator David Simon's earlier The Corner as R.C., a young drug dealer, in Homicide in episode 10 of season 7 as Yates, and in ER in episode 19 of season 5 as the student Antoine Bell. In the daytime soap opera Guiding Light, he played the role of Remy Boudreau.