Anthony Mackie has joined the cast of online gambling thriller “Runner Runner”, according to Deadline.

Justin Timberlake, Ben Affleck and “Project X” breakout star Oliver Cooper have already been cast in the Brad Furman film about a couple of Ivy League college students (Timberlake and Cooper) who get drawn into the world of online gambling and find themselves in over their heads when they’re hired to work for Affleck’s shady billionaire online gambling business owner. Filming begins next month in Puerto Rico, with Mackie in the role of an FBI agent who’s been trying to take down Affleck for years.

After breaking out in Kathryn Bigelow’s Best Picture Oscar winner “The Hurt Locker” opposite Jeremy Renner, Mackie has been increasingly in demand, appearing in four movies in 2011 and set to have an even bigger 2012, with “Abraham Lincoln: Vampire Hunter” set for release next month and Ruben Fleischer’s “Gangster Squad” recently bumped up to a September 7th release. He’s currently filming bodybuilder heist actioner “Pain and Gain” opposite Mark Wahlberg and Dwayne Johnson.