Josh Nickerson

Season One Episodes

 * "Cold Case"
 * "Call of Duty"
 * "Elementary"
 * "Deceive and Conquer"
 * "Return of the Bowser Jr."

Season Two Episodes

 * "The Academy"
 * "Parental Bonding"
 * "Breakout"
 * "Secret Saturday"
 * "The Forces of Evil"
 * "Battle to Rescue"

Season Twenty Episodes

 * "The High School Planet" (final appearance)