Stage-trained character player of film and TV remains best known for one of his earliest feature roles: a hissable portrayal of the crazed hippie serial killer Scorpio in Don Siegel's genre landmark, "Dirty Harry" (1971). With his sharp nose, full lips, and small beady eyes which conveyed an incredible capacity for cruelty, Robinson crafted a villain so irredeemably bad that his mere existence justified the extreme techniques employed by Clint Eastwood's iconic tough cop. This role set the unpleasant tone for his more memorable subsequent feature roles: an unsavory lout who gets clobbered in