John Ratzenberger
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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.
Known for
Credits
Toy Story 5 (2026)
as Hamm (voice)
Swapped (2026)
as Elder Javan (voice)
Coco (2017)
as Juan Ortodoncia (voice)
Toy Story (1995)
as Hamm (voice)
Monsters, Inc. (2001)
as Yeti (voice)
Toy Story 3 (2010)
as Hamm (voice)
Inside Out 2 (2024)
as Fritz (voice)
Toy Story 2 (1999)
as Hamm (voice)
Inside Out (2015)
as Fritz (voice)
Finding Nemo (2003)
as Fish School (voice)
WALL·E (2008)
as John (voice)
Up (2009)
as Construction Foreman Tom (voice)
Cars 3 (2017)
as Mack (voice)
Ratatouille (2007)
as Mustafa (voice)
Toy Story 4 (2019)
as Hamm (voice)
Cars 2 (2011)
as Mack (voice)
The Incredibles (2004)
as Underminer (voice)
Cars (2006)
as Mack / Hamm Truck / Abominable Snow Plow / P.T. Flea Car (voice)
The Empire Strikes Back (1980)
as Major Derlin
The Good Dinosaur (2015)
as Earl (voice)
Brave (2012)
as Gordon (voice)
Incredibles 2 (2018)
as Underminer (voice)
A Bug's Life (1998)
as P.T. Flea (voice)
Monsters University (2013)
as Yeti (voice)
Superman (1978)
as 1st Controller
Finding Dory (2016)
as Husband Crab (Bill) (voice)
Luck (2022)
as Rootie (voice)
Onward (2020)
as Construction Worker Fennwick (voice)
Planes: Fire & Rescue (2014)
as Brodi (voice)
Spellbound (2024)
as Milo The Monster Handler (voice)
Planes (2013)
as Harland (voice)
Superman II (1980)
as Controller
A Bridge Too Far (1977)
as U.S. Lieutenant
Gandhi (1982)
as American Lieutenant
Small Fry (2011)
as Hamm (voice)
Hawaiian Vacation (2011)
as Hamm (voice)
Firefox (1982)
as Chief Peck
Outland (1981)
as Tarlow
Your Friend the Rat (2007)
as P.T. Flea (voice) (uncredited)
The Pixar Story (2007)
as Yeti (voice) (archive footage)
Superman II: The Richard Donner Cut (2006)
as Controller #1
House II: The Second Story (1987)
as Bill
Partysaurus Rex (2012)
as Hamm (voice)
Something New (2006)
as Brian's Father (uncredited)
The Falcon and the Snowman (1985)
as Detective
Motel Hell (1980)
as Drummer
Reds (1981)
as Communist Leader (uncredited)
She's Having a Baby (1988)
as John Ratzenberger (uncredited)
Ray Gunn (2026)
as (voice)
Hanover Street (1979)
as Sgt. John Lucas
Yanks (1979)
as Cpl Cook
Super Buddies (2013)
as Marvin 'Gramps' Livingstone
Twilight's Last Gleaming (1977)
as Sgt. Kopecki
Warlords of Atlantis (1978)
as Fenn
One Night Stand (1997)
as Phil
Must See TV: An All Star Tribute to James Burrows (2016)
as Self
Pup Star: Better 2Gether (2017)
as Salty (voice)
Valentino (1977)
as Newshound
That Darn Cat (1997)
as Dusty
Disneyland's 35th Anniversary Celebration (1990)
as Cliff Clavin
The Earth Day Special (1990)
as Cliff Clavin
Forky Asks a Question: What Is Money? (2019)
as Hamm (voice)
In Search of Tomorrow (2022)
as Self - Interviewee
Arabian Adventure (1979)
as Achmed
Ragtime (1981)
as Policeman
Forky Asks a Question: What Is a Friend? (2019)
as Hamm (voice)
The Ritz (1976)
as Patron
Monkey Up (2016)
as Mr. Hartz
What if... (2010)
as Mike the Angel
Geared-Up (2006)
Actor
Protocol (1984)
as Security Guard on TV
The Art of 'Spirited Away' (2003)
as Himself
The Bitch (1979)
as Hal Leonard
Under Pressure (1997)
as Al Calavito
Camp Cucamonga (1990)
as Marvin Schector
Tick Tock (2000)
as Clay Fairfield, P.I.
Timestalkers (1987)
as General Joe Brodsky
Toy Story at 20: To Infinity and Beyond (2015)
as Self
Russell Madness (2015)
as Mick Vaughn
Toy Story 6 (—)
as Hamm (voice)
Pup Star: World Tour (2018)
as Grandpa Growl (voice)
Tapawingo (2025)
as Tom Roan
Mickey's 60th Birthday (1988)
as Cliff Clavin
Battletruck (1982)
as Rusty
Combat Academy (1986)
as Mr. Barnett
NBC 75th Anniversary Special (2002)
as Self
Eddie and the Beanstalk (—)
as (voice)
Fixing Pete (2012)
as Clayton
Matchmaker Santa (2012)
as George
The Santa Con (2014)
as Warden
WWJD II: The Woodcarver (2012)
as Ernest Otto
Right of Way (1983)
as Policeman
Pup Star (2016)
as Mutt (voice)
How Murray Saved Christmas (2014)
as Officer Bender (voice)
Tiny Toy Stories (1996)
as Hamm (voice)
Monty Python: Live at Aspen (1998)
as Audience Member (uncredited)
Determination of Death (2001)
as Charlie Halloran
Going to the Chapel (1988)
as Walt Caruso
Mystery Woman: Redemption (2006)
as Jim Carter
Disney's Magic in the Magic Kingdom (1988)
as Self
A Fare to Remember (1999)
as Mickey
Change of Heart (2016)
as Dr. Charles Burke
The Story Behind 'Toy Story' (1996)
as Self
In The Name of God (2013)
as Reverend Thomas
Local Commercial (2012)
as Earl T. Barnum
Project: Puppies for Christmas (2019)
as Daniel Nilwater
Dog's Best Friend (1997)
as Goat (voice)
Shifting Gears (2018)
as Conrad Baines
The Village Barbershop (2008)
as Art Leroldi
The Frasier Story (1999)
as Self
Disney Through The Decades (2001)
Actor
Our First Christmas (2008)
as Joe Noll
Miracle in East Texas (2020)
as Dad Everett
A Christmas Mystery (2014)
as Logan Walker
Grace of God (2014)
as Reverend Thomas
Likely Stories, Vol. 4 (1983)
as Jersey Cop #2
The Pennsylvania Miners' Story (2002)
as Thomas 'Tucker' Foy
Rating Notman (1982)
Actor
Titleist: Made in America (—)
Actor
The Good Soldier (1981)
as Jimmy