- 2009: Voiced a construction worker in the Pixar film, "Up"
- 2008: Lent his voice to the Pixar film, "WALL-E"
- 2006: Voiced a tractor-trailer named Mack in "Cars"
- 2005: Hosted the Travel Channel's documentary series, "John Ratzenberger's Made in America"
- 2004: Voiced the Underminer in Pixar's "The Incredibles"
- 2003: Once again lent his voice to the animated film, "Finding Nemo"
- 2001: Voiced the Abominable Snowman in "Monsters Inc."
- 1998: Provided character voice in "A Bug's Life"
- 1997: Appeared in "One Night Stand"
- 1995: Provided voice of Hamm in the computer animated feature "Toy Story"
- 1988: Made TV directorial debut with an episode of "Cheers"
- 1982: Gained small screen stardom as postal woker Cliff Clavin in the NBC sitcom "Cheers"
- 1981: Co-starred in "Outland"; first screen work with Frances Sternhagen who later played his mother on "Cheers"
- 1980: Appeared in "The Empire Strikes Back"
- 1976: Feature film debut in "The Ritz"
- Formed production company, Fiddler's Bay Productions
- Founded the London-based inprovisational group Sal's Meat Market




