David Stephen Caruso is an American retired actor and producer, best known for his roles as Detective John Kelly on the ABC crime drama NYPD Blue (1993–1994) and Lieutenant Horatio Caine on the CBS series CSI: Miami (2002–2012). He appears in the feature films An Officer and a Gentleman, First Blood, Twins (1988), King of New York (1990), Kiss of Death (1995) and Proof of Life (2000).

John Bradley Kelly Jr. is a fictional character and the original protagonist in the television series NYPD Blue, portrayed by David Caruso. The character appeared in the first season and the first four episodes of the second season.