Young actors Luke Grimes and Haley Bennett have landed key roles in the upcoming FX pilot 'Outlaw Country.' The pair joins the previously cast Mary Steenburgen in the Nashville-set crime-tinged family drama/thriller, reports Deadline.

'Justified' and 'Sons of Anarchy' director Michael Dinner has signed to direct the pilot, which will explore Nashville's organized crime underground while offering a slice of the city's celebrated music scene (with help from music supervisor Shooter Jennings, son of Waylon Jennings).

They say that friends come and go, but family is forever. Not so on ABC's hit drama 'Brothers & Sisters,' which has become a veritable revolving door of cast members this season. Following the news that Rob Lowe is calling it quits after season four wraps, theAusiello Files is now reporting two more cast changes for next year.

Fans of Sarah and her dishy French lover Luc will be pleased to learn that tall-dark-and-handsome Gilles Marini has been promoted to full-time series regular for season five.

Who is the missing Walker sibling? For a year, the answer was Rebecca, but DNA has proven that that's not William Walker's unaccounted for child. It's a character named Ryan Lafferty and today a newcomer named Luke Grimes has been cast in the role.

When the storyline revealed that there was a Ryan somewhere out there, rumors were rife that a big name would land the role. Jason Ritter and Jason Dohring were in the running, but Grimes is set to sign on the dotted line and his resume is pretty slim, just a couple of minor movies, Assassination of a High School President and All the Boys Love Mandy Lane.