Ronald Gabriel “Ron” Paolillo (April 2, 1949 – August 14, 2012) was an American television and film actor and teacher. Palillo was best known as Arnold Horshack on the ABC sitcom Welcome Back, Kotter (1975–79).
Ronald Gabriel “Ron” Paolillo (April 2, 1949 – August 14, 2012) was an American television and film actor and teacher.