The casting for Steve (Shame) McQueen's third movie 12 Years a Slave has been coming together as it's been filming in New Orleans over the past few weeks, and the latest to join Michael Fassbender, Brad Pitt and Chiwetel Ejiofor is none other than Michael Kenneth Williams, best known for his role as Omar on "The Wire" and Chalky White on "Boardwalk Empire."

Williams will play a mutinous slave in the New Regency adaptation of Solomon Northup’s 1853 book about a free black man from the North who is drugged and sold into slavery.

(Photo source: Joseph Marzullo/WENN.com)