Here are a few more:
Freema Agyeman - BBC America's Torchwood and Dr. Who.
Souléymane Sy Savané - will be featured in a movie by Ramin Bahrami and has been int he popular play, Yama Africa.
Stan Barua - the Kenyan behind several award winning movies (cinematography) including Baba’s House, Drag, Rain, Shades of Poland, Unlocking the Past, Western Eyes, Forgotten Places, The Baisikol, Psychic Investigators, Forensic Factor, Raisin’ Kane, or My Daddy was a Cavalryman
C'mon guys... you haven't spotted any african anywhere????