Haley Bennett, Luke Grimes

Luke Grimes and Haley Bennett will star in Outlaw Country opposite Mary Steenburgen, an FX rep confirms.

Check out videos of Grimes

Grimes, 26, who had a recurring role on ABC's Brothers & Sisters, will play Eli Larkin, a cowboy trying to escape his life of crime. Marley & Me's Bennett, 22, will play Annabel Lee, a country singer with an overprotective mother, played by Steenburgen (Joan of Arcadia), as first reported by Deadline.

Outlaw Country, set around organized crime in the South, is executive-produced by Josh Goldin, Rachel Abramowitz and David Manson (Life).