In the Ray Donovan episode 'Chinese Algebra,' Ray (Liev Schreiber) tries his best to pay off Avi's debts to the Russian mob. But before he can pull it off, Ray is stopped by FBI agent Frank Barnes. Barnes offers Ray the opportunity to turn informant against Dmitri in exchange for Federal protection.
Frank Barnes is portrayed by Michael McGrady. He’s known for his roles on The People v. O.J. Simpson: American Crime Story (Detective Phillip Van Atter), Mob City (Chief Horall), Southland (Detective Daniel Salinger), and Las Vegas (Detective Max Dillon), among others. McGrady will appear next in the TV series Beyond which will premiere on Freeform in January 2017. McGrady plays the father of a young man who wakes up from a coma and discovers he has supernatural powers. Ray Donovan airs Sundays at 9pm on Showtime.The BEST SALES on Amazon NOW ]