Ann Biderman ( born August 15 , 1951 ) is an American film and television writer . She is the creator and executive producer of the NBC/TNT series Southland ( 2009 -- 2013 ) , and won an Emmy Award for Outstanding Individual Achievement in Writing in a Drama Series for an episode of NYPD Blue . She created , wrote , and produced '' Ray Donovan . Public Enemies is a 2009 American biographical mob drama film directed by Michael Mann and written by Mann , Ronan Bennett and Ann Biderman . Southland ( stylized as SOUTHLAND ) is an American television crime drama series created by writer Ann Biderman and produced by Warner Bros. .
Ann Biderman is only a radio writer.