Three More Added to Sylvester Stallone Action Thriller

Adewale Akinnuoye-Agbaje ("Lost," "Oz"), Christian Slater and Holt McCallany ("Lights Out") have joined Sylvester Stallone in director Walter Hill's untitled action thriller (previously known as "Headshot") at Warner Bros. and Dark Castle.

Stallone will play a New Orleans hitman who teams with a New York City detective (played by Sung Kang) in a high-stakes investigation that leads from the dingy back alleys of New Orleans all the way to the power corridors of Washington, D.C. The unlikely duo, brought together by two vicious murders, take on all who stand in their way, and are willing to sacrifice everything to exact revenge.

Akinnuoye-Agbaje has been cast as the main villain, a powerful attorney who's trying to cover up his scam to exploit poor neighborhoods that have been ravaged by Hurricane Katrina.

Slater will play a local handler who acts as a middleman, while McCallany will play a cop who's partners with Kang.

Alessandro Camon (The Messenger) adapted the graphic novel "Bullet to the Head," created by the singularly monikered Matz and Colin Wilson.

(Photo Credit: FayesVision/WENN.com)