The Riverbottom Nightmare Band, also known as "The Nightmare," are the primary antagonists of Emmet Otter's Jug-Band Christmas. The band members include:
- Chuck Stoat on keyboards
- Stanley Weasel on guitar
- Fred Lizard on drums
- Howard Snake on bass
- Catfish, for visual interest
The band made a last-minute entry to the Waterville talent contest, performing the self-referential song "Riverbottom Nightmare Band", earning them first place.
When not performing on stage, the band members enjoy breaking traffic laws, riding their snowmobiles, and destroying property. They are the only characters to directly interact with Kermit, which in this case happens during the original prologue.
The band is referenced in The Muppets Mayhem episode "Virtual Insanity." Dr. Teeth and the Electric Mayhem mention having had a past feud with them.