Which famous actors were cops or firemen?

Dennis Farina was a cop for many years before he became an actor.

also how many Law Enforcement officers or fire fighter were famous for acting or sports or stuff along that line before becoming a Law Enforcement Officers or Fire fighter

Steve Buscemi was a Firefighter from 1980-84 with the FDNY, at Little Italy's engine company 5. He donned his gear in 2001 to help search for victims in the aftermath of the attacks