Pickles is a Muppet alligator. He was the first one to be made for "The Muppet Show" in the number "Never Smile at a Crocodile" in the Sandy Duncan episode. Mary Louise rode the crocodile through a swamp, and as she sang, the crocodile ate a series of frogs. In this debut, he had angry eyes and a black mouth.
In the Milton Berle episode, Pickles appeared again in "Ugly Song," where he was performed by Frank Oz. For the Elton John episode's "Crocodile Rock", he was tweaked slightly, having been given eyebrows and a red mouth.
In another memorable appearance in the Lynda Carter episode, Pickles ate the Newsman as a punishment from the ancient Egyptian crocodile god, Rezal-evad-gib.
Pickles appeared in a North Pole-themed number in the Gene Kelly episode of "The Muppet Show", "Jambalaya", biting Catgut, who's trying a spot of ice fishing.
Pickles later appeared in "The Muppets at Walt Disney World", scaring Miss Piggy as she made the soggy trek to Paradise Swamp.
In 2009, he was later rebuilt for a video clip originally posted to Muppets.com, where his name is mentioned and he interacted with Gonzo in presentation on how to butter an alligator.