TNT's "Mob City" premiered this week, with a sumptuous noir aesthetic but not much in the way of rich characters. For some, though, the most notable part of the series is that it co-stars Milo Ventimiglia — a.k.a. Jess from "Gilmore Girls." What better occasion, then, to revisit the residents of Stars Hollow? Where are these actors now? And more important, what shows should they be on?