David Alan Barclay is a puppeteer and animatronic supervisor with extensive experience in Muppet and Henson productions. Barclay helped to build Yoda in The Empire Strikes Back, and served as Frank Oz's understudy for the character.
- Fraggle Rock: Sprocket (British and French versions), Uncle Traveling Matt (German and French versions)
- The Dark Crystal
- Labyrinth: Fiery 1 (assistant), Sir Didymus (assistant)
- Jim Henson's The StoryTeller: Greek Myths
- The Muppet Christmas Carol: Additional Muppets
- The StoryTeller: Devil
- The Flintstones in Viva Rock Vegas: Chief Puppeteer
- Cats & Dogs: Animatronic Supervisor
- Studio DC: Almost Live!
- Where the Wild Things Are: puppeteer
- The Muppets: puppeteer
- Who Framed Roger Rabbit: Chief Puppeteer
- Looney Tunes: Back in Action: Bugs Bunny puppeteer for green-screen footage