The three Elvises are Muppet characters parodying rock-and-roll icon Elvis Presley. They have been performed by Bill Barretta, Brian Henson, Jerry Nelson, Dave Goelz, and others.
The Elvises were first seen in Muppet Classic Theater, playing the parts of the elves in "The Elves and the Shoemaker." On Muppets Tonight, they were prominently featured in the Great Moments in Elvis History sketches.
They later appeared during the "Moulin Scrooge" number in It's a Very Merry Muppet Christmas Movie. They will return in Muppets Most Wanted.