Filmography
| Role | Title | Year | Character |
|---|---|---|---|
| Actor | Dinosaurs | Baby Sinclair | |
| Actor | Teenage Mutant Ninja Turtles | 1990 | Splinter (Voice) |
| Actor | The Happytime Murders | 2018 | Bumblypants / Lyle |
| Actor | Tully | 2018 | Elmo |
| Actor | Teenage Mutant Ninja Turtles II: The Secret of the Ooze | 1991 | Splinter |
| Actor | Sesame Street | Elmo, Hoots the Owl, Baby Natasha, Kingston Livingston the Third, and many others... | |
| Actor | Teenage Mutant Ninja Turtles III | 1993 | Splinter |
| Actor | Muppet Treasure Island | 1996 | Bad Polly / Black Dog / Spa'am / Chicken / Miss Piggy (assistant) / Fozzie Bear (assistant) / Sam th |
| Actor | Tour de Pharmacy | 2017 | Sesame Street Character (Voice) |
| Actor | The Muppets' Wizard of Oz | 2005 | Clifford / Mulch / Black Dog (voice) |
| Actor | It's a Very Merry Muppet Christmas Movie | 2002 | Sam Eagle (voice) |
| Actor | Muppets Tonight | Clifford | |
| Actor | The Adventures of Elmo in Grouchland | 1999 | Elmo / Pestie / Grouch Jailer / Grouch Cab Driver (voice) |
| Producer | The Adventures of Elmo in Grouchland | 1999 | |
| Actor | Being Elmo: A Puppeteer's Journey | 2011 | Himself |
| Actor | The Making of 'Teenage Mutant Ninja Turtles': Behind the Shells | 1991 | Himself |
| Actor | Dog City | Eliot | |
| Actor | Captain Kangaroo | ||
| Actor | The Jim Henson Hour | ||
| Actor | Sesame Street: Elmo Saves Christmas | 1997 | Elmo |
| Actor | The Tale of Peter Rabbit | 1991 | Mr. McGregor / Bluejay (voice) |
| Actor | I Love Muppets | 2002 | Himself |
| Actor | Sesame Street: The Adventures of Elmo In Grouchland (Sing and Play) | 1999 | Elmo |
| Actor | Big Bag | Avery | |
| Actor | Mr. Willowby's Christmas Tree | 1995 | Father (voice) |