Set in 1940s and '50s Los Angeles, the new series is based on John Buntin's novel about the battles between LAPD chief William Parker and crime lord Mickey Cohen (Sean Penn plays him in the upcoming "Gangster Squad," across from Nick Nolte's Parker).
Darabont has snagged two "Walking Dead" stars, Jon Bernthal and Jeffrey DeMunn (now that they've been killed off). Bernthal will play the central ex-Marine cop who must deal with corruption among the force. Joining him are Neal McDonough, Milo Ventimigila and Jeremy Strong. In the pilot, Thomas Jane and Simon Pegg also star.
Six episodes are on order at TNT, with producers Darabont, Michael De Luca and Elliott Webb.
Darabont is of course familliar with period dramas: He was Oscar-nominated for writing "The Shawshank Redemption," which begins in 1947, and for writing and producing "The Green Mile," set in 1935.