*Michael Kenneth Williams has joined the cast of “Twelve Years a Slave,” an adaptation of Solomon Northup’s 1853 book about a free black man who is drugged and dragged to the South to be sold into slavery.


The actor joins Michael Fassbender, Chiwetel Ejiofor and Brad Pitt in the Steve McQueen-directed film, according to The Hollywood Reporter. “Raising Hope‘s” Garret Dillahunt, Paul Dano and SNL’s Taran Killam are also in “Twelve Years.”

Williams, best known for playing Chalky White on HBO’s “Boardwalk Empire” and Omar Little on “The Wire,” will play Robert, a mutinous slave in “Twelve Years.”

New Regency is backing the film, while River Road and Pitt’s Plan B are producing. Production is currently underway in New Orleans.