John Flavin is a motion picture producer. He was a Co-Producer frthe last season. He was an Associate Producer for Boardwalk Empire. He has worked on the first, second, third and fourth seasons. He was a producer's assistant for the pilot episode and then became an Associate Producer when the series was picked up. He has been active since 1998 and has also worked on the HBO series The Comeback, Entourage, and The Pacific. He worked with Boardwalk Empire Executive Producers Mark Wahlberg and Stephen Levinson on Entourage and with Boardwalk Empire Executive Producer Tim Van Patten on The Pacific.