Ronald Gabriel "Ron" Paolillo (April 2, 1949 – August 14, 2012) was an American television and film actor and teacher. He was best known as Arnold Horshack on the ABC sitcom Welcome Back, Kotter (1975–79). Read full biography of Ron Palillo →
Everybody thought of me as Arnold Horshack. I resented Horshack for so many years.
Ronald Gabriel "Ron" Paolillo (April 2, 1949 – August 14, 2012) was an American television and film actor and teacher. He was best known as Arnold Horshack on the ABC sitcom Welcome Back, Kotter (1975–79).