Rizzo the Rat "Midnight Cowboy". Steve Whitmire created the character, based on rats he had previously made out of bottles. Rizzo first appeared in episode 418 of "The Muppet Show", as one of many rats following Christopher Reeve backstage. He can be seen mugging and reacting to practically every line of dialogue. He remained a scene-stealing background figure through the final season, occasionally performing with Dr. Teeth and The Electric Mayhem. By the time of "The Muppets Christmas Carol", Whitmire had been performing Rizzo for around 12 years. After the series, he appeared in "The Great Muppet Caper" as a bellboy in a
Dr. Teeth and The Electric Mayhem The band performed a live five-song set at the Outside Lands Music and Arts Festival on August 6, 2016. Dr. Teeth is the keyboard player and gravelly-voiced leader of the band. He is green-skinned and red-haired with a large grinning mouth of teeth including a gold tooth supposedly fashioned by melting down his gold records. He sports a scruffy red beard with no mustache, a fur vest, a striped shirt and a floppy purple top hat. He has arms so long that additional puppeteers are required to guide them; this design enabled Henson to work the Dr. Teeth puppet while