Ron Palillo: 1949-2012

Actor Ron Palillo arrives at the 6th annual "TV Land Awards" held at Barker Hangar on June 8, 2008, in Santa Monica, Calif.

Palillo, who played Arnold Horshack on the 1970s TV series "Welcome Back, Kotter," died on Aug. 14, 2012. He was 63.

Credit: Todd Williamson/Getty Images for TV Land