Bruce Rumpelstiltskin
From Muppet Wiki
Bruce Rumpelstiltskin appeared in a Sesame Street News Flash sketch in 1974. In the sketch, Rumpelstiltskin appears to the Miller's Daughter and threatens to take her baby if she can't guess his name. She can't, so he grabs the baby carriage -- with Kermit inside.
Gonzo plays a different version of Rumpelstiltskin in Muppet Classic Theater.
