John Dezso Ratzenberger is an American actor. He is best known for playing the character Cliff Clavin on the comedy series Cheers, for which he earned two Primetime Emmy nominations. Ratzenberger also played a role in the short-lived spin-off The Tortellis and in an episode of Wings, which was made by the same creators. He has voiced various characters in several Pixar animated feature films including Hamm in the Toy Story franchise, The Abominable Snowman in the Monsters, Inc. franchise, Mack in the Cars franchise, The Underminer in The Incredibles franchise, Fritz in the Inside Out franchise, and many others.

Toy Story is an American media franchise owned by The Walt Disney Company. It centers on toys that, unknown to humans, are secretly living, sentient creatures. It began in 1995 with the release of the animated feature film of the same name, which focuses on a diverse group of toys featuring a classic cowboy doll named Sheriff Woody and a modern spaceman action figure named Buzz Lightyear.