Cameos in Muppet/Henson/Sesame productions by performers and staff who aren't usually seen on-camera. See also Crew Cameos for individual cameo galleries.
- Bailey, Joseph. Memoirs of a Muppets Writer, page 260
- Bailey, Joseph. Memoirs of a Muppets Writer, page 109
- Bill Barretta on Facebook
- Movin’ Right Along 338: A Lot Happens in Two Weeks
- Documents provided by trusted source
- Alan Muraoka on Instagram
- Craig Shemin at the Museum of the Moving Image event "Jim Henson and the Music of Joe Raposo"