The Accountant cast is starting to come together quickly, with Jon Bernthal in talks to join Ben Affleck in this Gavin O'Connor directed thriller.

Ben Affleck will make The Accountant his next project after completing principle photography on the DC Comics adventure Batman v Superman: Dawn of Justice. He will play a mild-mannered accountant who moonlights as an assassin. No details have been revealed for Jon Bernthal's character.

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Also currently in talks for the thriller are J.K. Simmons and Anna Kendrick. Though she is wanted as the female lead, scheduling complications could keep Kendrick from officially signing on. Those issues are currently trying to be ironed out.

Ben Affleck is said to be a big fan of Jon Bernthal, who gained quite a bit of exposure as the shady Shane on the first two seasons of The Walking Dead. The actor is also rumored to be up for a role in Ben Affleck's upcoming Warner Bros. project Live by Night, which will go before cameras after The Accountant wraps.

Bill Dubuque is behind the screenplay, which was voted to the 2011 Black List. Shooting on The Accountant will begin in January.