Trivia: Cromartie High School
- Hey, It's That Voice!: The Japanese voice actor for Shinichi Mechazawa is Chiyo's dad, who also plays Cell, Johnny, and Emperor Charles zi Britannia. His English voice actor played complete loser Watanabe and the King of France, among other roles. No matter what, his voice actors all lend him that Badass flavor! It's even lampshaded by Kamiyama and Hayashida when they say he has a sober voice.
- The English voice actor for Chiyo-Dad plays Hokuto in this series.
- Playing Against Type: The director of the anime version, Hiroaki Sakurai, is mostly known for his cute series like Di Gi Charat. So to direct a series starring a bunch of decidedly un-cute delinquents was a radical departure for him.
- Stunt Casting: Megumi Hayashibara is Maeda's Mom, if you can believe it. Made even funnier given that Maeda's Mom never speaks a word, only ever doing an irritated moan.