John Ratzenberger
Acting • Born 1947-04-06
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.
Filmography
173 credits
Toy Story
Movie • 1995
Hamm (voice)
Toy Story 2
Movie • 1999
Hamm (voice)
Cars
Movie • 2006
Mack / Hamm Truck / Abominable Snow Plow / P.T. Flea Car (voice)
Monsters, Inc.
Movie • 2001
Yeti (voice)
Ratatouille
Movie • 2007
Mustafa (voice)
Toy Story 3
Movie • 2010
Hamm (voice)
Outland
Movie • 1981
Tarlow
The Empire Strikes Back
Movie • 1980
Major Derlin
Warlords of Atlantis
Movie • 1978
Fenn
Motel Hell
Movie • 1980
Drummer
Ragtime
Movie • 1981
Policeman
A Bug's Life
Movie • 1998
P.T. Flea (voice)
Up
Movie • 2009
Construction Foreman Tom (voice)
House II: The Second Story
Movie • 1987
Bill
Monsters University
Movie • 2013
Yeti (voice)
Valentino
Movie • 1977
Newshound
Cars 2
Movie • 2011
Mack (voice)
Miracle in East Texas
Movie • 2020
Dad Everett
Camp Cucamonga
Movie • 1990
Marvin Schector
The Good Soldier
Movie • 1981
Jimmy
Our First Christmas
Movie • 2008
Joe Noll
Luck
Movie • 2022
Rootie (voice)
Timestalkers
Movie • 1987
General Joe Brodsky
Arabian Adventure
Movie • 1979
Achmed
WWJD II: The Woodcarver
Movie • 2012
Ernest Otto
Hawaiian Vacation
Movie • 2011
Hamm (voice)
A Fare to Remember
Movie • 1999
Mickey
Protocol
Movie • 1984
Security Guard on TV
Titleist: Made in America
Movie
Rating Notman
Movie • 1982
Determination of Death
Movie • 2001
Charlie Halloran
Fixing Pete
Movie • 2012
Clayton
The Pixar Story
Movie • 2007
Yeti (voice) (archive footage)
Tapawingo
Movie • 2025
Tom Roan
Tick Tock
Movie • 2000
Clay Fairfield, P.I.
Brave
Movie • 2012
Gordon (voice)
WALL·E
Movie • 2008
John (voice)
NBC 75th Anniversary Special
Movie • 2002
Self
Battletruck
Movie • 1982
Rusty
Planes: Fire & Rescue
Movie • 2014
Brodi (voice)
Under Pressure
Movie • 1997
Al Calavito
The Santa Con
Movie • 2014
Warden
Russell Madness
Movie • 2015
Mick Vaughn
Going to the Chapel
Movie • 1988
Walt Caruso
The Village Barbershop
Movie • 2008
Art Leroldi
Dog's Best Friend
Movie • 1997
Goat (voice)
Inside Out
Movie • 2015
Fritz (voice)
Pup Star: Better 2Gether
Movie • 2017
Salty (voice)
Combat Academy
Movie • 1986
Mr. Barnett
Inside Out 2
Movie • 2024
Fritz (voice)
Gandhi
Movie • 1982
American Lieutenant
The Incredibles
Movie • 2004
Underminer (voice)
The Good Dinosaur
Movie • 2015
Earl (voice)
Geared-Up
Movie • 2006
Partysaurus Rex
Movie • 2012
Hamm (voice)
Small Fry
Movie • 2011
Hamm (voice)
How Murray Saved Christmas
Movie • 2014
Officer Bender (voice)
Monkey Up
Movie • 2016
Mr. Hartz
Hanover Street
Movie • 1979
Sgt. John Lucas
Must See TV: An All Star Tribute to James Burrows
Movie • 2016
Self
A Christmas Mystery
Movie • 2014
Logan Walker
Change of Heart
Movie • 2016
Dr. Charles Burke
Spellbound
Movie • 2024
Milo The Monster Handler (voice)
Finding Dory
Movie • 2016
Husband Crab (Bill) (voice)
Twilight's Last Gleaming
Movie • 1977
Sgt. Kopecki
Pup Star
Movie • 2016
Mutt (voice)
A Bridge Too Far
Movie • 1977
U.S. Lieutenant
Yanks
Movie • 1979
Cpl Cook
Super Buddies
Movie • 2013
Marvin 'Gramps' Livingstone
Superman
Movie • 1978
1st Controller
Superman II
Movie • 1980
Controller
Mickey's 60th Birthday
Movie • 1988
Cliff Clavin
The Falcon and the Snowman
Movie • 1985
Detective
Mystery Woman: Redemption
Movie • 2006
Jim Carter
The Bitch
Movie • 1979
Hal Leonard
Finding Nemo
Movie • 2003
Fish School (voice)
What if...
Movie • 2010
Mike the Angel
The Story Behind 'Toy Story'
Movie • 1996
Self
Cars 3
Movie • 2017
Mack (voice)
Incredibles 2
Movie • 2018
Underminer (voice)
Firefox
Movie • 1982
Chief Peck
Coco
Movie • 2017
Juan Ortodoncia (voice)
That Darn Cat
Movie • 1997
Dusty
One Night Stand
Movie • 1997
Phil
Shifting Gears
Movie • 2018
Conrad Baines
She's Having a Baby
Movie • 1988
John Ratzenberger (uncredited)
In The Name of God
Movie • 2013
Reverend Thomas
Toy Story 4
Movie • 2019
Hamm (voice)
Tiny Toy Stories
Movie • 1996
Hamm (voice)
Reds
Movie • 1981
Communist Leader (uncredited)
Pup Star: World Tour
Movie • 2018
Grandpa Growl (voice)
Grace of God
Movie • 2014
Reverend Thomas
Superman II: The Richard Donner Cut
Movie • 2006
Controller #1
Forky Asks a Question: What Is Money?
Movie • 2019
Hamm (voice)
Forky Asks a Question: What Is a Friend?
Movie • 2019
Hamm (voice)
Onward
Movie • 2020
Construction Worker Fennwick (voice)
The Santa Con
Movie • 2014
Warden Jeffrey Mitchell
Matchmaker Santa
Movie • 2012
George
The Art of 'Spirited Away'
Movie • 2003
Himself
In Search of Tomorrow
Movie • 2022
Self - Interviewee
Disneyland's 35th Anniversary Special
Movie • 1990
Self
Project: Puppies for Christmas
Movie • 2019
Daniel Nilwater
The Ritz
Movie • 1976
Patron
Planes
Movie • 2013
Harland (voice)
Monty Python: Live at Aspen
Movie • 1998
Audience Member (uncredited)
Your Friend the Rat
Movie • 2007
P.T. Flea (voice) (uncredited)
The Earth Day Special
Movie • 1990
Cliff Clavin
Toy Story at 20: To Infinity and Beyond
Movie • 2015
Self
Right of Way
Movie • 1983
Policeman
Local Commercial
Movie • 2012
Earl T. Barnum
Disney Through The Decades
Movie • 2001
Ray Gunn
Movie
(voice)
Something New
Movie • 2006
Brian's Father (uncredited)
Disney's Magic in the Magic Kingdom
Movie • 1988
Self
Likely Stories, Vol. 4
Movie • 1983
The Frasier Story
Movie • 1999
Self
The Pennsylvania Miners' Story
Movie • 2002
Thomas 'Tucker' Foy
Toy Story 5
Movie • 2026
Hamm (voice)
Swapped
Movie • 2026
(voice)
St. Elsewhere
TV • 1982
Cliff Clavin
That '70s Show
TV • 1998
Glen
Magnum, P.I.
TV • 1980
Walt Brewster
Cheers
TV • 1982
Cliff Clavin
The Simpsons
TV • 1989
Cliff Clavin / CGI Homer Simpson (voice)
Touched by an Angel
TV • 1994
Merl
Wings
TV • 1990
Cliff Clavin
Sister, Sister
TV • 1994
Gus Kilamilikimaka
Frasier
TV • 1993
Cliff Clavin
8 Simple Rules
TV • 2002
Fred
Blossom
TV • 1990
Rodney
TV • 2004
John Ratzenberger
The View
TV • 1997
Self
Wizards and Warriors
TV • 1983
John Ratzenberger's Made in America
TV • 2004
Drop Dead Diva
TV • 2009
Larry Kaswell
The Wonderful World of Disney
TV • 1997
Monsters at Work
TV • 2021
Yeti (voice)
Legit
TV • 2013
Walter Nugent
Monsters at Work
TV • 2021
Adorable (voice)
Toy Story Treats
TV • 1996
Hamm (Voice)
Monsters at Work
TV • 2021
Adorable / Bernard (voice)
CSI: Crime Scene Investigation
TV • 2000
Stu Kirchoff
Legit
TV • 2013
Walter
Hell's Kitchen
TV • 2005
Self - Bartender & Guest Judge
Mom
TV • 2013
Stan
Dancing with the Stars
TV • 2005
Self - Contestant
Sabrina, the Teenage Witch
TV • 1996
Bob
Secret Army
TV • 1977
Staff Sergeant Dexter
Code Red
TV • 1981
Fish Hooks
TV • 2010
Wilford (voice)
Buzz Lightyear Mission Logs
TV • 2010
Hamm (voice)
Franklin & Bash
TV • 2011
Judge Elliot Reid
Captain Planet and the Planeteers
TV • 1990
Rigger (voice)
Happily Ever After: Fairy Tales for Every Child
TV • 1995
Hinky (voice)
LEGO Star Wars: The Freemaker Adventures
TV • 2016
Major Derlin (voice)
Pigs Next Door
TV • 2000
Ike Stump (voice)
The Drew Carey Show
TV • 1995
Himself
Monsters at Work
TV • 2021
Bernard (voice)
The Goldbergs
TV • 2013
Digby Yates
Monsters at Work
TV • 2021
Bernard / Arodable (voice)
Bones
TV • 2005
Bill Schumacher
Poker Face
TV • 2023
Abe
Goliath Awaits
TV • 1981
Bill Sweeney
Just Roll with It
TV • 2019
George Bennett
Caroline in the City
TV • 1995
Mr. Berman
Small World
TV • 1988
Morris Zapp
WondLa
TV • 2024
Caruncle (voice)
Bob Hearts Abishola
TV • 2019
Hank
Remember WENN
TV • 1996
Mr. Abernathy
Hill Street Blues
TV • 1981
Phony Cop
Cars: Lightning Racers
TV
Mack (voice)
Private Schulz
TV • 1981
American Newsreel Commentator (voice, uncredited)
The Tortellis
TV • 1987
Cliff Clavin