Mr. Switch is an episode of Mr. Young.
When Adam's brain mapping experiment goes awry, the gang ends up switching their personalities. The entire gang must find a way to go back to their old personalities, before Principal Tater finds out their secret.
- This is the second time Ivy wears Slab' clothes, the first was in Mr. Talent.
- Innuendo: Echo (in Derby's body), Ivy (in Dang's body), Mrs. Byrne (in Principal Tater's body) and Slab (in Ivy's body) cross dresses.
- As Mr. Tater falls in Mr. Young' classroom, the mop bucket cart disappears and reappears in various scenes.