Stage-trained character player of film and TV whose beady-eyed intensity and small wiry physique made him perfect for playing ferret-like punks and psychos in Hollywood genre films. Kelly trained with Stella Adler, studied mime with Marcel Marceau, and racked up NYC stage credits in musicals, dramas, and experimental theater. But film producer Joel Silver looked at him and saw a rat and cast him accordingly in Walter Hill's "The Warriors" (1979) and "48 Hrs." (1982), "Commando" (1985), and "The Adventures of Ford Fairlane" (1990). As Luther in "The Warriors" ("Warriors ... come out to play!"