Johnny is a young boy who is a resident of Aru Village. In the battle between Goku and Oolong, while Oolong is the form of a robot, Johnny shoots a slingshot at the back of Oolong's head, which makes him become angry. Johnny's mom grabs him and runs away saying "Johnny, do you wanna get yourself killed?"
Johnny may have been an inspiration for Penny in Dragon Ball: Curse of the Blood Rubies, as they both use a slingshot which they attack Oolong with.
He is referred by the name "Villager I" in Dragon Ball: Origins.