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| PERFORMER | Julianne Buescher |
| DEBUT | 1992 |
Bertha is foremonster of a construction site in Muppets on Wheels. She sings to Kermit and Lindy about the wonders of construction vehicles.
Appearances[]
- Muppet Meeting Films "Think Bigger" (performed by David Rudman)
- The cover of "Kermit Learns Windows"
- Muppet Classic Theater as an audience member
- Muppets Tonight as an audience member
- The Muppets (2011 film)