Jack Riley, a regular on 'The Bob Newhart Show,' dies at 80

Besides portraying grumpy, self-absorbed Mr. Carlin on the 1970s "Newhart" sitcom and providing the voice for absent-minded dad Stu Pickles on "Rugrats" and its spinoff, "All Grown Up!," Riley appeared in the Mel Brooks films "History of the World: Part I," ''High Anxiety" and "Spaceballs."

The Cleveland native also voiced commercials and made guest appearances on numerous TV series including "Seinfeld," ''Night Court" and "Diff'rent Strokes."

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