Leon is a pink lizard with bulgy eyes who appeared regularly on The Jim Henson Hour. His two biggest interests are bikini shows and money. Leon is prone to pulling Gonzo into his schemes, and in one episode he referred to Kermit as "cuz", implying that their cold-blooded relation made them cousins.
In addition to The Jim Henson Hour, Leon featured prominently in the "Cliff's Nightmare" episode of The Cosby Show, where he conned Cliff out of his money into buying elevator passes.
- Leon has a tail. The only time it's shown, however, was in "The Secrets of the Muppets," when the performers appear with their characters. Kevin Clash points out that it's the first time his tail has been shown.
- According to Muppet Magazine issue 25, Leon isn't even employed by Kermit.
- Leon is the only newly introduced character to appear in all the MuppeTelevision segments of The Jim Henson Hour, having a speaking role in all of them except "Food", where he just has a cameo.