Potty is a marionette character of the series and the co-host of Patchy the Pirate, and appears in every episode that features him.
Rivalry with Patchy
Despite being labeled as Patchy's friend, Potty is a frequent pest to Patchy and is often an antagonist in his live-action segments, although they usually make up by the end of the episode.
In "Shanghaied," he shot Patchy out of a cannon. In "Ugh," Potty ruined Patchy's Cave Man Show by becoming a futuristic cyborg and bringing in a robot. At the end of the show, Potty gives Patchy a pet T-Rex as an "apology present". In "Friend or Foe?", Patchy and Potty get into a fight while working as fry cooks, temporarily ending their friendship, which makes Patchy upset. Patchy compares this to how Plankton and Mr. Krabs became enemies, starting the main story of that episode. In "It's a SpongeBob Christmas!", Patchy finds Santa's Workshop, but it turns out to be a polar bear's cave while Potty manages to find the real Santa's Workshop.
Potty has been damaged and/or destroyed on multiple occasions, but always returns in the next scene/episode. In "Christmas Who?", Patchy cuts the strings that Potty is attached to, causing him to fall to the ground. Later in that same episode, Patchy pulls on the strings, causing what seems to be a cast member to fall from the ceiling. Again in the same episode, Potty had eaten so much cookie dough that his entire body falls from the weight, leaving only his head intact. At the end of the "Patchy's Pick" segment from "Shanghaied," Potty is blown up by dynamite, which again causes his whole body to fall, including his head.