Actor Ron Palillo, best known as the adorably irritating Arnold Horshack from the 1970s sitcom “Welcome Back Kotter,” died yesterday in Florida, marking the second “Sweathog” to pass away this year.
The cast of "Welcome Back, Kotter" featuring John Travolta, Ron Palillo, Gabe Kaplan, Robert Hegyes, Lawrence Hilton-Jacobs. Actor Ron Palillo, best known as the adorably irritating Arnold Horshack ...
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