Bill the Bug (simply named Bug on his initial media appearance) is a yellow insect who was built by Tim Miller and designed by Ed Christie. In The Adventures of Elmo in Grouchland, Bill was a meek henchman to Huxley, carrying out his orders with a shrug. He enjoys his mistreatment with the Pesties to trick Elmo into thinking it's the way to Huxley's castle. He was friends with him until Elmo and the Sesame Street gang showed up to give Elmo's blanket back and be-friend him.
Seven years after he was absent, he returned to Sesame Street on a 2006 episode Good-bye, Elmo, Hello, Jelmo as the Jitterbug. His most recent appearance was on Panwapa which was given a name called Bill in addition to the insect character.