Another star from "Welcome Back, Kotter" has passed away. Ron Palillo, the actor best known as nerdy high-school student Arnold Horshack on the '70s hit show, has died in Florida at the age of 63.

Actor Ron Palillo, who died early Tuesday morning of a heart attack at age 63, will be remembered by a generation of Americans as Arnold Horshack, the whiny-voiced lovable loser he played on the ...

or Ron Palillo, there's one addition to the old adage that only two things are inevitable: death and taxes. In Palillo's case, there is a third: Arnold Horshack. Welcome Back, Kotter didn't ...

Ron Palillo, the actor and G-Star arts school teacher who died last Tuesday at age 63 in his Palm Beach Gardens apartment, was remembered by fans and fellow actors with an outpouring of sadness ...

No, Ron Palillo, who played Arnold Horshack on “Welcome Back, Kotter,” did not die — again — Friday despite social media being flooded with rest-in-peace messages. Palillo died two years ago.

Another Sweathog is gone. Seven months after "Welcome Back Kotter" star Robert Hegyes (Juan Epstein) died of a heart attack in New Jersey, Ron Palillo, who played the skinny, nerdy Arnold Horshack ...

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 confirms to FoxNews.com. TMZ reports that ...

Palillo was inextricably linked with the character ... The casting agents knew better, and so did Gabe Kaplan, who played Kotter. "When Ron walked into the audition and did his first line ...

Palillo was inextricably linked with the character ... The casting agents knew better, and so did Gabe Kaplan, who played Kotter. "When Ron walked into the audition and did his first line ...

Ron Palillo, who played Arnold Horshack, reportedly suffered a heart attack Ron Palillo, the boyish actor who played Arnold Horshack, the remedial-class loser on Welcome Back, Kotter, died Tuesday ...