Ron Palillo, "Horshack" on Welcome Back, Kotter, Dies at 63

Mr. Palillo portrayed the goofy high school underachiever Arnold Horshack in the hit 1970s sitcom “Welcome Back, Kotter.” Actor Ron Palillo, who played class clown Arnold Horshack on the 1970s television comedy "Welcome Back, Kotter," has died at age 63, his agent said Tuesday Ron Palillo's death at 63 comes in the wake of fellow "sweathog" Robert Hegyes' passing at 60 in January.Ron Palillo , an actor whose signature role was Arnold Horshack in the 1970s TV sitcom “Welcome Back, Kotter,” died Tuesday. He was 63 Ron Palillo, best known as mouthy classroom goofball Arnold Horshack on the 1970s TV series Welcome Back, Kotter, has died.the actor who played Horshack on "Welcome Back, Kotter" -- died this morning at his home near Palm Beach, FL from an apparent heart Ron Palillo, best known as mouthy classroom goofball Arnold Horshack on the 1970s TV series Welcome Back, Kotter, died at his Palm Beach Gardens home .Long-time friend Stacy Stacco said he apparently suffered a heart attack. He was reportedly found at 4 a.m. by his long-time partner, Joseph Gramm, and taken Ron Palillo, who played Horshack on the hit 1970s sitcom "Welcome Back, Kotter," died Tuesday morning at his home from an apparent heart attack, his rep .Arnold Horshack, you will be missed. Ron Palillo, who was best known for playing the loveable cla.WEST PALM BEACH, Fla. - The actor best known as the nerdy high-school student Arnold Horshack on "Welcome.