We won't see the series return until the later part of the year, but casting for the second season of Boardwalk Empire is already underway. THR reports William Forsythe (The Rock, Blue Streak) will have a recurring role on the series as a gangster named Manny Horvitz. Of course the actor is no stranger to crime dramas having played Al Capone in The Untouchables TV series back in the 90's. In addition, Charlie Cox (Stardust) has also joined the cast as an Irish gangster with ties to the IRA. We're still not sure just what story will be the focus on the second season, but no matter what, I'm already looking forward to the series returning later this year.