| Movie | 2009 | Cinematic Titanic: Blood of the Vampires | Self | |
| Movie | 2012 | Cinematic Titanic: Rattlers | Self | |
| Movie | 2013 | Margot Rourke & The Boys Club | Peppers Fontaine | |
| Movie | 2012 | God Bless America | Stan Kurtz | |
| Movie | 2016 | RiffTrax Live: MST3K Reunion | Self | |
| Movie | 2007 | Cinematic Titanic: The Oozing Skull | Self | |
| Movie | 2008 | Cinematic Titanic: The Wasp Woman | Self | |
| Movie | 2008 | Cinematic Titanic: Legacy of Blood | Self | |
| Movie | 2009 | Cinematic Titanic: East Meets Watts | Self | |
| Movie | 2010 | Cinematic Titanic: Danger on Tiki Island | Self | |
| Movie | 2011 | Cinematic Titanic: War of the Insects | Self | |
| Movie | 2010 | Cinematic Titanic: The Alien Factor | Himself | |
| Movie | 2008 | Cinematic Titanic: Frankenstein's Castle of Freaks | Himself | |
| Movie | 2016 | Cinematic Titanic: The Astral Factor | Frank Conniff | |
| Movie | 1992 | This Is MST3K | Self | |
| Movie | 1995 | Poopie! | | |
| Movie | 2008 | Cinematic Titanic: Santa Claus Conquers the Martians | Himself | |
| Movie | 2008 | Cinematic Titanic: Doomsday Machine | Self | |
| Movie | 2014 | The Frank | Frank | |
| Movie | 2018 | The Bateman Lectures on Depression | | |
| Movie | 1997 | Statical Planets | King & The Frank Army | |
| Movie | 2019 | RiffTrax Live: Day of the Shorts: SF Sketchfest 2019 | Self | |
| Movie | 2021 | Monty Python's Best Bits Celebrated | Self | |
| Movie | N/A | Darkstar: Terror at The Edge of Time | Alan Burk / Voice of SIMON | |
| TV Show | 1989 | Mystery Science Theater 3000 | TV's Frank | 109 |
| TV Show | 2002 | O2Be | | 6 |
| TV Show | 2007 | Cinematic Titanic | | 13 |
| TV Show | 1996 | Sabrina, the Teenage Witch | Big Rudy | 1 |
| TV Show | 1996 | Sabrina, the Teenage Witch | Prince Randy | 1 |
| TV Show | 2016 | Hidden America with Jonah Ray | Self | 1 |
| TV Show | 2020 | The Mads are Back | Himself | 53 |
| TV Show | 1997 | Make Me Laugh (Comedy Central) | Comedian | 1 |
