John Deszo Ratzenberger (born April 6, 1947) is an American actor, voice actor, and entrepreneur. He is best known for his role as Cliff Clavin in Cheers and his recurring supporting cast roles in Pixar films. Ratzenberger was born in Bridgeport, Connecticut, the son of Bertha (ne Grohowski) and Deszo Alexander Ratzenberger. He has Polish ancestry. He attended St. Ann's School in Bridgeport and Sacred Heart University in Fairfield, Connecticut. In 1969, Ratzenberger was a tractor operator at the Woodstock Festival. He moved to London in 1971, living there for ten years. Ratzenberger was a house framer living in London when he began his career in the performing arts. His first role was a patron in The Ritz (1976).
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