The Muppets are a group of puppets and costume characters, and the company created by Jim Henson . Individually, a Muppet is properly any one of the puppets built by the Jim Henson Workshop. Though the term is often used erroneously to refer to any puppet that resembles the distinctive style of The Muppet Show and Sesame Street characters, the term is both an informal name and legal trademark linked to the characters created by The Jim Henson Company. After frequently changing hands since the de