Kotter Star Ron Palillo dies at age 63.Best known for the role of Horshack on the 1970s  hit sitcom " Welcome Back Kotter " Ron Palillo passed away earlier today of an apparent heart attack. He starred along side John Travolta, and would always be the one to yell out OOH ooh ooh, Mr. Kotter. Palillo was 63 years old.

 

 

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