Highest rated as cast or director
Toy Story
1995
WALL·E
2008
Cheers
1982 · 11 Seasons
Change of Heart
2016
What if...
2010
Timestalkers
1987
Biography
John Dezso Ratzenberger is an American actor, voice actor, director, producer, writer and entrepreneur. He is one of the most successful actors of all time in terms of box-office receipts. Ratzenberger is best known for portraying Cliff Clavin on the popular comedy series Cheers, for which he earned two Primetime Emmy nominations. He is also known being a voice actor appearing in almost every Pixar Animation Studios feature film, including Hamm in the Toy Story franchise, The Underminer in The Incredibles franchise, and Mack in the Cars franchise. Ratzenberger began his entertainment career while living in London in the 1970s. He had minor film and television roles throughout the late 70s and early 1980s before creating, and then landing, the role of the know-it-all mailman Cliff Clavin on Cheers, a role he portrayed throughout the show's eleven seasons. His first Pixar role was the voice of Hamm in Toy Story, and he has voiced Pixar characters in films and video games ever since. From 2004 to 2008 he hosted the TV documentary series Made in America. Outside of acting, he has promoted American entrepreneurship and manufacturing, and campaigned for several Republican candidates.
Acted in 156
2020s
- 2026
- 2025
- 2024
- 2023
- 2022
- 2021
- 2020
2010s
- 2019
Forky Asks a Question
Hamm (voice) · 2 episodes
Project: Puppies for Christmas
Daniel Nilwater
- 2018
- 2017
Pup Star: Better 2Gether
Salty (voice)
- 2016
- 2015
- 2014
The Santa Con
Warden
How Murray Saved Christmas
Officer Bender (voice)
A Christmas Mystery
Logan Walker
Grace of God
Reverend Thomas
- 2013
In The Name of God
Reverend Thomas
Legit
Walter Nugent, Walter · 13 episodes
- 2012
Matchmaker Santa
George
Fixing Pete
Clayton
Local Commercial
Earl T. Barnum
- 2011
- 2010
Buzz Lightyear Mission Logs
Hamm (voice) · 3 episodes
2000s
- 2009
- 2008
Our First Christmas
Joe Noll
The Village Barbershop
Art Leroldi
- 2007
- 2006
Geared-Up
Movie
Mystery Woman: Redemption
Jim Carter
- 2005
- 2004
- 2003
- 2002
The Pennsylvania Miners' Story
Thomas 'Tucker' Foy
- 2001
Disney Through The Decades
Movie
- 2000
Pigs Next Door
Ike Stump (voice) · 13 episodes
1990s
- 1999
A Fare to Remember
Mickey
- 1998
Monty Python: Live at Aspen
Audience Member (uncredited)
- 1997
Under Pressure
Al Calavito
Dog's Best Friend
Goat (voice)
- 1996
Tiny Toy Stories
Hamm (voice)
Toy Story Treats
Hamm (Voice) · 55 episodes
- 1995
- 1994
- 1993
- 1990
Camp Cucamonga
Marvin Schector
Disneyland's 35th Anniversary Celebration
Cliff Clavin
1980s
- 1989
- 1988
Going to the Chapel
Walt Caruso
Small World
Morris Zapp · 6 episodes
- 1987
The Tortellis
Cliff Clavin · 1 episode
- 1986
Combat Academy
Mr. Barnett
- 1985
- 1984
- 1983
Likely Stories, Vol. 4
Jersey Cop #2
Wizards and Warriors
TV
- 1982
- 1981
Goliath Awaits
Bill Sweeney · 2 episodes
The Good Soldier
Jimmy
- 1980
1970s
- 1979
The Bitch
Hal Leonard
Yanks
Cpl Cook
Arabian Adventure
Achmed
- 1978
- 1977
- 1976
The Ritz
Patron
No release date
Cars: Lightning Racers
Mack (voice) · 1 episode
Directed 5
1990s
- 1996
Pearl
Director
- 1994
Madman of the People
Director
- 1990
1980s
- 1982
Wrote 1
1960s
- 1967
Appearances13
2020s
- 2022
2010s
- 2016
Must See TV: An All Star Tribute to James Burrows
Self
- 2015
Toy Story at 20: To Infinity and Beyond
Self
2000s
- 2005
- 2003
The Art of 'Spirited Away'
Self
- 2002
NBC 75th Anniversary Special
Self
1990s
- 1999
The Frasier Story
Self
- 1997
- 1996
The Story Behind 'Toy Story'
Self
- 1995
1980s
- 1988
Disney's Magic in the Magic Kingdom
Self