<P> John Dezso Ratzenberger ( born April 6 , 1947 ) is an American actor , voice actor , and entrepreneur . He is best known as Cliff Clavin in Cheers . He is also known for his extensive vocal work in Pixar Animation Studios ' films , notably Hamm in the Toy Story franchise and Mack in the Cars franchise . </P>
<P> John Dezso Ratzenberger ( born April 6 , 1947 ) is an American actor , voice actor , and entrepreneur . He is best known as Cliff Clavin in Cheers . He is also known for his extensive vocal work in Pixar Animation Studios ' films , notably Hamm in the Toy Story franchise and Mack in the Cars franchise . </P>
who is the pig voice in toy story
who is the pig voice in toy story
John Dezso Ratzenberger
John Dezso Ratzenberger