Voice Actor - John Ratzenberger

Ratzenberger has had a voice part in ALL of Pixar's feature films made to date. His roles include:

• Hamm the Piggy Bank in Toy Story (1995), Toy Story 2 (1999) and Toy Story 3 (2010)
• P.T. Flea, the Circus Ring Leader in A Bug's Life (1998)
• The Abominable Snowman in Monsters, Inc. (2001)
• The school of Moonfish in Finding Nemo (2003)
• The Underminer in The Incredibles (2004)
• Mack the truck in Cars (2006) and Cars 2 (2011)
• Mustafa the Waiter in Ratatouille (2007)
• John in WALL-E (2008)
• Tom the construction worker in Up (2009)

He also voiced the bathhouse's assistant manager, Ao-gaeru, in the English dub of Spirited Away, a film whose U.S. executive producer was Pixar's John Lasseter.

Ratzenberger had the chance to make fun of his tenure at Pixar during the end credits of Cars, where his character, Mack, watches car-themed versions of Pixar movies ("Toy Car Story", "Monster Trucks, Inc.", and "A Bug's Life"), notes that all the characters Ratzenberger has played were excellent, until he realizes that they're the same actor, at which point he remarks, "They're just using the same actor over and over. What kind of cut-rate production is this?"
Ratzenberger's favorite of his Pixar characters was P.T. Flea, because "in real life I always get a kick out of those kinds of characters, people who just go into a rage for [no] explicable reason. He was always on edge. His blood pressure was always way over the top, and everything that he did was done in a panicked state. So it was a lot of fun to play him."

Ratzenberger is best known for playing mail carrier Cliff Clavin on the sitcom Cheers. He had read for the part of Norm Peterson, but after the audition, he could tell they weren't going to give him the part. Sensing an opportunity, he asked if they had written a bar know-it-all, which the producers decided was a great idea. Cliff became known for his outlandish stories of plausible half-truths, irrelevant trivia, and ignorant misinformation, and was known for being an overall pretentious blowhard. Cliff and Norm, the primary customer characters, became iconic bar buddies. Ratzenberger provided the voice for an animated version of Cliff on The Simpsons 6th season episode "Fear of Flying".
Ratzenberger's work for Pixar, as well as his small parts in Superman, and The Empire Strikes Back, technically makes him the 5th most successful actor of all time, as measured by a total box office of over $3,000,000,000.