Mekhi Phifer
Mekhi Phifer ( meh-KY FY-fər; born December 29, 1974) is an American actor. He portrayed Dr. Greg Pratt on NBC's long-running medical drama ER from 2002 to 2008, and had a co-starring role opposite rapper Eminem in the 2002 feature film 8 Mile. He was a recurring cast member on the Showtime drama House of Lies , and also starred as CIA officer Rex Matheson in Torchwood: Miracle Day. Phifer is also known for his appearance in the music video for "The Boy Is Mine" by Brandy and Monica.