Palillo shot to fame nearly three decades ago as the nasal-voiced nerd Arnold Horshack on the '70s TV show that featured Gabe Kaplan as a Brooklyn high school teacher and John Travolta as the ...

PHOTOS: ‘Welcome Back, Kotter’ -- Where are they now? Palillo also wrote a play, “The Lost Boy,” was artistic director at Palm Beach’s Cuillo Center for the Arts, and had numerous ...

Ron Palillo, best known for his role as Arnold Horshack on the 1970s TV sitcom "Welcome Back, Kotter," has died, the Palm Beach Post reports. He was 63.

How much do you know about Mr. Kott-air, Barbarino, Horshack, Epstein, Washington, and how the Sweathogs made it to primetime? We've got 25 facts that might surprise even the most devoted "Kotter ...

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 ...

He once played class clown Arnold Horshack on Welcome Back, Kotter, but now Ron Paolillo is at the head of the class at a Palm Springs Arts School.

He once played class clown Arnold Horshack on Welcome Back, Kotter, but now Ron Paolillo is at the head of the class at a Palm Springs Arts School.

PHOTOS: ‘Welcome Back, Kotter’ -- Where are they now? Palillo also wrote a play, “The Lost Boy,” was artistic director at Palm Beach’s Cuillo Center for the Arts, and had numerous ...

WEST PALM BEACH, Fla. — Ron Palillo, the actor best known as the nerdy high school student Arnold Horshack on the 1970s sitcom "Welcome Back, Kotter," died Tuesday in Palm Beach Gardens, Fla. He ...

How much do you know about Mr. Kott-air, Barbarino, Horshack, Epstein, Washington, and how the Sweathogs made it to primetime? We've got 25 facts that might surprise even the most devoted "Kotter ...

WEST PALM BEACH, Florida (AP) – Ron Palillo, the actor best known as the nerdy high school student Arnold Horshack on the 1970s sitcom “Welcome Back, Kotter,” died Tuesday in Palm Beach ...