John Ratzenberger

John Dezso Ratzenberger (born April 6, 1947) is an American actor, widely known for his role as Cliff Clavin on the comedy series Cheers (1982–1993), for which he earned two Primetime Emmy nominations. Ratzenberger reprised the role in the short-lived spin-off The Tortellis, an episode of Wings, as well as in an episode of Frasier. He has voiced various characters in Pixar animated feature films including Hamm in the Toy Story franchise, Yeti the Abominable Snowman in the Monsters, Inc. franchise, The Underminer in The Incredibles franchise, Mack in the Cars franchise, Fritz in the Inside Out franchise, and many others.

Ratzenberger began his entertainment career while living in London in the 1970s. He acted in and wrote film and television through the 1970s and early 1980s before returning to America. At an audition for a role in a new sitcom, Ratzenberger created the character of Cliff Clavin. Cheers was a success and went on to run for 11 years. After Cheers, he began voicing characters for Pixar; his first role was Hamm in Pixar's debut feature film Toy Story (1995), and he would continue to voice characters in many subsequent Pixar films. Including voice acting and cameos, he is the fourth highest-grossing actor of all time.