John Ratzenberger
Known for: Acting
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
Film
Toy Story 5
Hamm (voice)
2026
Series
The Simpsons
Cliff Clavin / CGI Homer Simpson (voice)
1989
Series
CSI: Crime Scene Investigation
Stu Kirchoff
2000
Series
Bones
Bill Schumacher
2005
Series
Frasier
Cliff Clavin
1993
Film
Swapped
Elder Javan (voice)
2026
Series
The View
Self
1997
Series
Cheers
Cliff Clavin
1982
Film
Toy Story
Hamm (voice)
1995
Series
Dancing with the Stars
Self - Contestant
2005
Series
Mom
Stan
2013
Series
Sabrina, the Teenage Witch
Bob
1996
Series
Hell's Kitchen
Self - Bartender & Guest Judge
2005
Series
The Goldbergs
Digby Yates
2013
Film
WALL·E
John (voice)
2008
Series
Hill Street Blues
Phony Cop
1981
Film
Toy Story 3
Hamm (voice)
2010
Film
Coco
Juan Ortodoncia (voice)
2017
Series
That '70s Show
Glen
1998
Film
Finding Nemo
Fish School (voice)
2003
Film
Monsters, Inc.
Yeti (voice)
2001
Series
Magnum, P.I.
Walt Brewster
1980
Film
Toy Story 2
Hamm (voice)
1999
Film
Ratatouille
Mustafa (voice)
2007
Film
Inside Out
Fritz (voice)
2015
Series
The Drew Carey Show
Himself
1995
Film
Inside Out 2
Fritz (voice)
2024
Film
Toy Story 4
Hamm (voice)
2019
Film
Cars 3
Mack (voice)
2017
Series
St. Elsewhere
Cliff Clavin
1982
Series
Wings
Cliff Clavin
1990
Series
Touched by an Angel
Merl
1994
Film
The Incredibles
Underminer (voice)
2004
Film
Cars 2
Mack (voice)
2011
Film
Up
Construction Foreman Tom (voice)
2009
Film
Cars
Mack / Hamm Truck / Abominable Snow Plow / P.T. Flea Car (voice)
2006
Film
Brave
Gordon (voice)
2012
Series
Poker Face
Abe
2023
Film
The Empire Strikes Back
Major Derlin
1980
Film
Incredibles 2
Underminer (voice)
2018
Series
Drop Dead Diva
Larry Kaswell
2009
Film
A Bug's Life
P.T. Flea (voice)
1998
Series
Sister, Sister
Gus Kilamilikimaka
1994
Series
Caroline in the City
Mr. Berman
1995
Film
Superman
1st Controller
1978
Series
8 Simple Rules
Fred
2002
Series
Monsters at Work
Yeti (voice)
2021
Series
Monsters at Work
Adorable (voice)
2021
Series
Monsters at Work
Adorable / Bernard (voice)
2021
Series
Monsters at Work
Bernard (voice)
2021
Series
Monsters at Work
Bernard / Arodable (voice)
2021
Series
Fish Hooks
Wilford (voice)
2010
Film
The Good Dinosaur
Earl (voice)
2015
Series
Franklin & Bash
Judge Elliot Reid
2011
Film
Monsters University
Yeti (voice)
2013
Series
Bob Hearts Abishola
Hank
2019
Series
Blossom
1990
Film
Finding Dory
Husband Crab (Bill) (voice)
2016
Series
The Wonderful World of Disney
1997
Series
Captain Planet and the Planeteers
Rigger (voice)
1990
Film
Superman II
Controller
1980
Series
ITV Playhouse
Tom Phillips
1967
Series
Happily Ever After: Fairy Tales for Every Child
Hinky (voice)
1995
Film
Luck
Rootie (voice)
2022
Film
Onward
Construction Worker Fennwick (voice)
2020
Series
LEGO Star Wars: The Freemaker Adventures
Major Derlin (voice)
2016
Series
WondLa
Caruncle (voice)
2024
Series
Secret Army
Staff Sergeant Dexter
1977
Film
Planes: Fire & Rescue
Brodi (voice)
2014
Series
Remember WENN
Mr. Abernathy
1996
Film
Planes
Harland (voice)
2013
Film
A Bridge Too Far
U.S. Lieutenant
1977
Film
Small Fry
Hamm (voice)
2011
Film
Spellbound
Milo The Monster Handler (voice)
2024
Series
The Wonderful World of Disney
Cliff Clavin
1954
Series
John Ratzenberger's Made in America
2004
Series
Rodney
John Ratzenberger
2004
Film
Gandhi
American Lieutenant
1982
Film
Hawaiian Vacation
Hamm (voice)
2011
Series
Private Schulz
American Newsreel Commentator (voice, uncredited)
1981
Film
Outland
Tarlow
1981
Film
Firefox
Chief Peck
1982
Film
Partysaurus Rex
Hamm (voice)
2012
Film
Motel Hell
Drummer
1980
Film
Superman II: The Richard Donner Cut
Controller #1
2006
Film
Something New
Brian's Father (uncredited)
2006
Series
Pigs Next Door
Ike Stump (voice)
2000
Series
Code Red
1981
Film
One Night Stand
Phil
1997
Series
Legit
Walter Nugent
2013
Series
Legit
Walter
2013
Series
Goliath Awaits
Bill Sweeney
1981
Film
The Pixar Story
Yeti (voice) (archive footage)
2007
Film
Ray Gunn
(voice)
2026
Series
Just Roll with It
George Bennett
2019
Film
Valentino
Newshound
1977
Film
That Darn Cat
Dusty
1997
Film
Reds
Communist Leader (uncredited)
1981
Series
Toy Story Treats
Hamm (Voice)
1996
Film
The Falcon and the Snowman
Detective
1985
Film
Super Buddies
Marvin 'Gramps' Livingstone
2013
Film
Hanover Street
Sgt. John Lucas
1979
Film
Yanks
Cpl Cook
1979
Film
Monkey Up
Mr. Hartz
2016
Film
House II: The Second Story
Bill
1987
Film
She's Having a Baby
John Ratzenberger (uncredited)
1988
Series
Wizards and Warriors
1983
Film
Your Friend the Rat
P.T. Flea (voice) (uncredited)
2007
Film
Warlords of Atlantis
Fenn
1978
Film
Twilight's Last Gleaming
Sgt. Kopecki
1977
Film
What if...
Mike the Angel
2010
Film
Ragtime
Policeman
1981
Series
Forky Asks a Question
Hamm (voice)
2019
Eddie and the Beanstalk
(voice)
Film
Arabian Adventure
Achmed
1979
Film
The Bitch
Hal Leonard
1979
Film
Forky Asks a Question: What Is Money?
Hamm (voice)
2019
Film
Geared-Up
2006
Film
Forky Asks a Question: What Is a Friend?
Hamm (voice)
2019
Film
NBC 75th Anniversary Special
Self
2002
Film
Protocol
Security Guard on TV
1984
Film
The Ritz
Patron
1976
Film
Camp Cucamonga
Marvin Schector
1990
Film
Timestalkers
General Joe Brodsky
1987
Film
The Earth Day Special
Cliff Clavin
1990
Film
Tapawingo
Tom Roan
2025
Film
Under Pressure
Al Calavito
1997
Film
Disneyland's 35th Anniversary Celebration
Cliff Clavin
1990
Film
In Search of Tomorrow
Self - Interviewee
2022
Film
Toy Story at 20: To Infinity and Beyond
Self
2015
Film
Pup Star: Better 2Gether
Salty (voice)
2017
Film
Combat Academy
Mr. Barnett
1986
Series
The Tortellis
Cliff Clavin
1987
Film
Battletruck
Rusty
1982
Film
Project: Puppies for Christmas
Daniel Nilwater
2019
Series
Cars: Lightning Racers
Mack (voice)
Film
The Story Behind 'Toy Story'
Self
1996
Film
Must See TV: An All Star Tribute to James Burrows
Self
2016
Film
Tick Tock
Clay Fairfield, P.I.
2000
Film
Russell Madness
Mick Vaughn
2015
Film
Pup Star
Mutt (voice)
2016
Film
How Murray Saved Christmas
Officer Bender (voice)
2014
Film
Mickey's 60th Birthday
Cliff Clavin
1988
Film
The Art of 'Spirited Away'
Himself
2003
Life at Stake
Vance Brand
1978
Film
Monty Python: Live at Aspen
Audience Member (uncredited)
1998
Film
Local Commercial
Earl T. Barnum
2012
Series
Buzz Lightyear Mission Logs
Hamm (voice)
2010
Film
The Pennsylvania Miners' Story
Thomas 'Tucker' Foy
2002
Film
Pup Star: World Tour
Grandpa Growl (voice)
2018
Film
Change of Heart
Dr. Charles Burke
2016
Film
The Santa Con
Warden
2014
Film
Disney Through The Decades
2001
Film
Right of Way
Policeman
1983
Film
Disney's Magic in the Magic Kingdom
Self
1988
Film
The Village Barbershop
Art Leroldi
2008
Film
Fixing Pete
Clayton
2012
Film
Going to the Chapel
Walt Caruso
1988
Film
Determination of Death
Charlie Halloran
2001
Film
Likely Stories, Vol. 4
Jersey Cop #2
1983
Film
Shifting Gears
Conrad Baines
2018
Film
WWJD II: The Woodcarver
Ernest Otto
2012
Film
Miracle in East Texas
Dad Everett
2020
Film
Matchmaker Santa
George
2012
Film
Mystery Woman: Redemption
Jim Carter
2006
Film
Tiny Toy Stories
Hamm (voice)
1996
Film
A Fare to Remember
Mickey
1999
Film
The Frasier Story
Self
1999
Film
In The Name of God
Reverend Thomas
2013
Film
Dog's Best Friend
Goat (voice)
1997
Film
Our First Christmas
Joe Noll
2008
Film
The Good Soldier
Jimmy
1981
Rating Notman
1982
Film
A Christmas Mystery
Logan Walker
2014
Series
Small World
Morris Zapp
1988
Titleist: Made in America
Film
Grace of God
Reverend Thomas
2014