MysteryPotatoMan, or simply known as Potato, appeared in Annoying Orange: Muddy Buddy, where he was the antagonist.

In the episode, Potato arrived, and Orange called him "Muddy Buddy" once he found out that he grew up in the dirt. Suddenly, Daneboe sliced Potato's face off and the rest of his pieces, then took him away.

His voice was performed by guest star MysteryGuitarMan.