— This article is a stub. —
|You can help OK K.O.! Wiki by expanding it.|
When a new substitute shows up, K.O. and Dendy decide they need to get their old teacher back.
At Lakewood Plaza Elementary, Miss Quantum is replaced with Ernesto who begins enforcing memorization instead of actual learning. K.O. and Dendy realize that they need to get their old teacher back who does not want to return and instead go back to her original passion, being a supervillain named Bad Apple.
- Miss Quantum
- Principal Claus
- Lion Cat
- The song, "Textbook Train" is a spoof of "Casey Junior" from the Disney film, Dumbo.