From http://batman-news.com/2014/02/08/ben-mckenzie-young-commissioner-gordon-gotham/
It says that Donal Logue was offered the role of Harvey Bullock as well. I'm a little confused about the timeline of this show, if Gordon is a rookie cop and Bruce is 12? 13? how is the final episode of this show going to be Bruce becoming Batman? Will the show be going for 10 years? Maybe the President of Fox misspoke?