That “Ooh! Ooh ooh!” That Horshack laugh. When Ron Palillo died Tuesday morning at his home in Palm Beach Gardens, Fla., another little nugget of ‘70s pop culture died with him. Palillo, best known ...

His "ooh, ooh, ooh, Mr. Kotter!" is a classic line from a classic '70s show. Palillo was 63. "Ooh, Ooh, Ooh, Mr. Kotter!" If you watched TV in the '70s, you probably recognize that line. So it's with ...

Even if you never watched “Welcome Back, Kotter” during its mid-1970s hey-day or in three-plus decades of syndication, you knew Arnold Horshack. He was the high school oddball with the screechy voice, ...

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, 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.

Ron Palillo, best known for playing Arnold Horshack on the 1970s TV show “Welcome Back, Kotter,” died early Tuesday morning at his home in Palm Beach, Fla. He was 63. Palillo's agent confirmed his ...

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 ...

Actor Ron Palillo, who played Arnold Horshack on the ’70s sitcom “Welcome Back Kotter,” died Tuesday morning in West Palm Beach, Fla. He was 63. Long-time friend Stacy Stacco said he apparently ...

“Sweathog” Arnold Horshack of “Welcome Back Kotter” fame delivered a constant interruption that included a straight-armed hand raise and shouted “Ooh, ooh, ooh!” Ron Paillo, now deceased, played ...

“Welcome Back Kotter” star Ron Palillo, who died Tuesday at 63, shined playing a misfit who fit in perfectly with his fellow Sweathogs. Even if you never watched “Welcome Back, Kotter” during its ...

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. He died at 4:30 a.m. at his Palm Beach Gardens ...