Earl joined the Muppets in 1978 at the age of 19. After three years under contract, he freelanced with the Muppets for the next twelve years on several projects. After leaving the Muppets, Earl went on to become a four-time Emmy Award-winning puppeteer and writer/lyricist.
- The Muppets Go to the Movies
- Rocky Mountain Holiday
- The Muppets Take Manhattan Cookie Monster (Wedding Finale only)
- The Muppets: A Celebration of 30 Years
- A Muppet Family Christmas
- Sesame Street: 20 and Still Counting
- Monster Hits!