Swamp demons come from the imaginations of the villainous farmers in The Muppet Musicians of Bremen. When the traveling musician animals mistake the farmers for a family, the superstitious and cowardly farmers mistake the musicians for swamp demons.
|Image||Swamp demon||Character||As viewed by|
|Tree Troll||Leroy||Mordecai Sledge|
|Mud Monster||Catgut||Caleb Siles|
|Slime Serpent||Rover Joe||Mean Floyd|