Here are some of his most notable works in movies and television:
Movies:
* The Princess Bride (1987) - Voice of the Giant
* The Brave Little Toaster (1987) - Voice of the Toaster
* Beetlejuice (1988) - Voice of the Maitre d'
* The Pagemaster (1994) - Voice of the Storyteller
* A Bug's Life (1998) - Voice of the Queen's Guard
* Toy Story 2 (1999) - Voice of Stinky Pete
* Monsters, Inc. (2001) - Voice of The Abominable Snowman
* The Incredibles (2004) - Voice of Mirage
* Cars (2006) - Voice of Professor Z
* WALL-E (2008) - Voice of Captain B. McCrea
* Up (2009) - Voice of Charles Muntz (additional voice)
* Toy Story 3 (2010) - Voice of Stinky Pete
* Brave (2012) - Voice of the King (additional voice)
* Inside Out (2015) - Voice of Bing Bong (additional voice)
* Finding Dory (2016) - Voice of Hank
* Coco (2017) - Voice of Dante
* Toy Story 4 (2019) - Voice of Stinky Pete
* Onward (2020) - Voice of Manticore
Television:
* The Simpsons (1989-present) - Various voices
* Rugrats (1991-2004) - Voice of Stu Pickles
* The Powerpuff Girls (1998-2005) - Voice of Mojo Jojo
* Kim Possible (2002-2007) - Voice of Dr. Drakken
* Family Guy (1999-present) - Various voices
* American Dad! (2005-present) - Various voices
* Avatar: The Last Airbender (2005-2008) - Voice of Commander Zhao
* The Amazing World of Gumball (2011-present) - Voice of Richard Watterson
* Gravity Falls (2012-2016) - Voice of Old Man McGucket
* Rick and Morty (2013-present) - Various voices
This is just a small sampling of his extensive work. He is a prolific voice actor and his credits span decades and countless projects.