Donaldo Gugliermo "Dennis" Farina was an American actor and Chicago police detective. Known for his roles as mobsters or police officers, his involvement in the entertainment industry began through his association with filmmaker Michael Mann, who employed Farina as an actor and technical advisor. After supporting parts in Mann's films Thief (1981) and Manhunter (1986), he was cast in the lead role of Lieutenant Mike Torello on the NBC television series Crime Story, produced by Mann.