Movies:
* The Other Guys (2010) - As "The Cop Who Got Shot In The Face"
* The Heat (2013) - As "FBI Agent"
* The Interview (2014) - As "SNL Interviewer"
* The Nice Guys (2016) - As "Jack"
* The Emoji Movie (2017) - As "Hi-5" (voice)
* Game Over, Man! (2018) - As "Alex"
* Murder Mystery (2019) - As "Wedding Photographer"
Television:
* MADtv (2005-2009) - Cast Member
* Arrested Development (2004-2006, 2013, 2018-2019) - As "Gene Parmesan" (recurring)
* The Sarah Silverman Program (2007-2010) - Various roles
* The League (2009-2015) - As "Andre" (recurring)
* Community (2010-2015) - As "Malcolm" (recurring)
* Comedy Bang! Bang! (2012-2020) - As "Various characters" (recurring)
* The Awesomes (2013-2015) - As "The Awesomes" (voice)
* Drunk History (2013-2019) - As "Various historical figures" (recurring)
* The Goldbergs (2013-2023) - As "Dave Kim" (recurring)
* The Mindy Project (2012-2017) - As "Dr. Andrew" (recurring)
* Crazy Ex-Girlfriend (2015-2019) - As "Josh" (recurring)
* Brooklyn Nine-Nine (2013-2021) - As "Officer Hitchcock" (recurring)
* Superstore (2015-2021) - As "Glenn Sturgis" (recurring)
* BoJack Horseman (2014-2020) - As "Various characters" (voice)
* Bob's Burgers (2011-present) - As "Various characters" (voice)
* Smiling Friends (2020-present) - As "Pim" (voice)
* Smiling Friends (2020-present) - As "Gary" (voice)
This is not an exhaustive list, but it covers some of his most prominent and well-known roles. Liam Kyle Sullivan is a very versatile performer, known for his comedic timing and ability to portray a wide range of characters.
If you are interested in seeing more of his work, I recommend checking out his IMDb page for a complete list of his credits.