resembling Elvis Presley that star in "Great Moments in Elvis History" Eugene (performed by Steve Whitmire) – A mink who serves as Nigel's assistant George the Janitor (performed by Steve Whitmire) – Janitor of KMUP Gonzo (performed by Dave Goelz) – Does his stunt shows on the show Fozzie Bear (performed by Frank Oz) J.P. Grosse (performed by Kevin Clash) – The owner of the Muppet Theater who makes cameos as a crew member. In the Sandra Bullock episode, he appears in "The Tubmans of Porksmith" as Howard Tubman's doctor (performed by Allan Trautman) Miss Piggy (performed by Frank Oz) Mulch (performed by Kevin Clash) – Dr. Phil van Neuter's assistant (shown in minor parts in earlier Muppet projects); in one sketch, it is revealed that he has a sister named Composta Heap to whom Dr. Phil van Neuter is engaged Polly Lobster (performed by Kevin Clash) – A lobster who previously appeared in Muppet Treasure Island; appears in the "At the Bar" sketch co-owning a bar with Clueless Morgan Rizzo the Rat (performed by Steve Whitmire) – Production assistant of the show Rowlf the Dog (performed by Bill Barretta) – Makes some appearances playing pianos in some acts Sam the Eagle (performed by Frank Oz) – Hosts "The Eagle's Nest" Andy and Randy Pig (performed by Steve Whitmire and Dave Goelz) – Two unintelligent pigs who are Miss Piggy's nephews Statler and Waldorf (performed by Jerry Nelson and Dave Goelz) – Usually seen heckling the show from an unnamed retirement home (season 2 has them traveling to different areas while watching the show) Sweetums (performed by John Henson) New Muppets Some of the Muppets introduced on Muppets Tonight went on to appear in later Muppet productions, particularly Pepe the King Prawn, who has become a regular. A. Ligator (performed by Jerry Nelson) – A pink vulture who serves as the show's announcer Barbershop Cactus Quartet – A group of four cacti who make up their own barbershop quartet Big Mean Carl (performed by Bill Barretta) – A green shaggy monster. He often uses disguises or variety acts to disguise his intentions of eating other Muppets or objects, and eats the prized pet whenever a contestant loses (or wins) Swift Wits. He also makes some audience appearances Bill the Bubble Guy (performed by Dave Goelz) – A blue-skinned Muppet who can make bubbles come out of his head; first appears