Movies:
* The Little Mermaid (1989) - Ariel (singing voice)
* Beauty and the Beast (1991) - The Wardrobe, Babette (singing voice)
* Aladdin (1992) - The Sultan's Second Wife
* The Lion King (1994) - Young Nala
* Toy Story (1995) - Jessie
* A Bug's Life (1998) - Dot
* Toy Story 2 (1999) - Jessie
* Monsters, Inc. (2001) - Rancid
* Monsters University (2013) - Rancid
* Toy Story 3 (2010) - Jessie
* Toy Story 4 (2019) - Jessie
* Onward (2020) - Corey the Manticore
Television Shows:
* The Ren & Stimpy Show (1991-1996) - Ren Höek (voice)
* Rugrats (1991-2004) - Phil, Chuckie Finster (voice)
* The Wild Thornberrys (1998-2004) - Eliza Thornberry (voice)
* The Powerpuff Girls (1998-2005) - Princess Morbucks, Bubbles (some episodes)
* Dexter's Laboratory (1996-2003) - Dee Dee (voice)
* Cow and Chicken (1997-1999) - Cow, The Principal, Chicken (some episodes)
* Johnny Bravo (1997-2004) - Various characters
* Hey Arnold! (1996-2004) - Helga Pataki (voice)
* All Grown Up! (2003-2008) - Helga Pataki (voice)
* The Fairly OddParents (2001-2017) - Vicky, Tootie (voice)
* Jimmy Neutron: Boy Genius (2002-2006) - Cindy Vortex (voice)
* Avatar: The Last Airbender (2005-2008) - Toph Beifong (voice)
* The Legend of Korra (2012-2014) - Toph Beifong (voice)
* The Amazing World of Gumball (2011-present) - Nicole Watterson (voice)
* Gravity Falls (2012-2016) - Wendy Corduroy (voice)
* Steven Universe (2013-2019) - Peridot (voice)
* Star vs. the Forces of Evil (2015-2019) - Glossaryck (voice)
* Big Mouth (2017-present) - Connie the Hormone Monster (voice)
* Kipo and the Age of Wonderbeasts (2020) - Song (voice)
This list is not exhaustive, and there are many other shows, movies, and video games that Kath Soucie has lent her voice to. She is one of the most recognized and versatile voice actresses working today.