Ron Palillo Dead: Horshack's Best Moments

"GMA" takes a look at some of Palillo's memorable moments on "Welcome Back, Kotter."
3:00 | 08/15/12

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Transcript for Ron Palillo Dead: Horshack's Best Moments
We'll switch gears now. We have to remember rob. Chris connelly looks back at one of tv's most iconic characters. What was that name again? Horshack. Arnold horshack. Reporter: He wasn't the star. That was gabe kaplan. He wasn't the heartthrob, like john travolta. But any fan of "welcome back kotter," could tell you all about arnold horshack. I'm arnold horshack. Reporter: He was the sweat hog. Insistent, ingratiating, and impossible to ignore. Hey, vinny. Reporter: Ron was 30 years old by the time "welcome back kotter" went off the air in 1979. He battled years of depression to resurrect his acting career. He was a teacher in florida. He did not attend the reunion of the "welcome back kotter" cast. We love each other. There's an honest affection in our group. Reporter: In a statement released monday, john travolta said, ron was a wonderful person and talent. And helped catapult "welcome back kotter" to great success. We'll miss him. After they made me, they broke the mold. Reporter: Ron was 63 years old. He lives on in the memories of "kotter" fans. Our lives have lost all meaning without our little friend, horshack. Reporter: For whom the name horshack will always mean laughter. And lots of it. ♪ Who thought they'd need you ♪ Reporter: For "good morning america," chris connelly, abc news, los angeles. So much fun to see all of them again. Boy, that laugh. You can't get it out of your head. The golden age, too. It was when tv was little plays. Oh, yeah. You would race home to get that smile. I'm sorry. There's a fly. Good morning, everybody. Let's get some weather from ginger. I'm looking forward to the flies over here. Good morning, everybody.

This transcript has been automatically generated and may not be 100% accurate.

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